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review

Canyon Ultimate CF SLX Disc 8.0 Di2

9
£4,399.00

VERDICT:

9
10
Fast and comfortable race bike with predictable braking rain or shine, but could be lighter
Weight: 
7,800g
Contact: 

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Canyon's Ultimate CF SLX race bike has long been a popular bike with road.cc testers and readers, and it's now available with disc brakes. The new version offers the same brilliant performance and handling but benefits from improved braking in all weathers, not only the rain but also in the dry.

Canyon ULTIMATE CF SLX DISC 8.0 DI2.jpg

On the downside, it's heavier and more expensive than a rim-braked Ultimate with a comparable specification, but if you really want a race bike with disc brakes, this is one of the best choices on the market right now. The good thing is Canyon offers a full range of Ultimates so you can choose the braking system you prefer.

Buy Canyon Ultimate CF SLX Disc 8.0 Di2

Ride and handling

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - riding 3.jpg

In its rim-braked guise, the Ultimate CF SLX is one of the very best performance road bikes you can buy, providing that wonderful blend of weight, stiffness, comfort and speed that you want in a race or high-performance bike. And if you were to ride this disc-equipped version blindfolded (I'm not for one moment advising you do that) you would be hard-pushed to detect any significant difference.

Until you pull the Shimano brake levers, that is. Then the difference in braking performance becomes all too apparent. The hydraulic disc brakes, with 160mm rotors front and rear, are simply superior in every situation to even perfectly set up rim brakes in perfect conditions. And I say that with extensive testing of all rim brake and wheel combinations over years of riding in all conditions.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - fork clearance.jpg

There's no getting away from the extra weight on the scales. While Canyon has managed to minimise the weight increase in the updated frame, the disc brakes and the choice of wheels has meant the weight has gone up. But as I found during many, many rides on the new bike, unless you're a weight weenie or ride up mountains every day and get the chair lift back down, in real-world riding here in the UK the difference really is of a smaller concern than the benefits the disc brakes bring to the package.

The pros might not need disc brakes (they have closed roads which help massively) but I couldn't care less what the pros need or want. For cycling enthusiasts who want the performance and sharp handling of a race bike but have to deal with all the road conditions, traffic and hazards on a daily basis, there's a good case to be made for disc brakes.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - riding 2.jpg

Against the stopwatch there's no denying a lighter bike will be marginally faster up a climb, but when's the last time you timed yourself up a climb? I definitely never felt at a disadvantage when riding with friends on lighter non-disc bikes and let's remember it's the legs, body weight and fitness that really matter on a climb. Granted if you're a pure climber and it's the difference between winning a Grand Tour the extra weight might be a factor to consider when choosing a bike, but I didn't feel any significant penalty riding this bike on my local climbs at a normal person's pace.

What goes up must come down, and it's on the descents that the disc brakes really come into their own. There's no getting away from it, a disc brake is a better brake than a rim brake, in any sort of weather. With disc brakes, the Ultimate inspires confidence and there's no reason to hold back even if the weather is doing its best to temper your enthusiasm. And it's not just about getting down faster, but getting down with more control and confidence. For sure there's a limit in the tyre contact patch, but that never came into question during riding, even in the rain.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - fork detail.jpg

What really appeals about disc brakes is the near effortless manner you can control the brakes, using a solitary finger on the brake lever to control your speed through sweeping bends or bring everything to a speedy halt for a tight junction or roundabout. They're quiet in the dry but they can occasionally be noisy in the rain, but it appears to only happen when lightly activating the brakes, say slowing towards a junction. Properly engage the brakes and the noise vanishes.

Though it's an out-and-out race bike, it's not harsh and punishing even when riding along rough roads. While not in the same league as Canyon's Endurace CF SLX, the ability of the Ultimate to provide a composed and settled ride and avoid getting choppy or skittish is nothing short of impressive. Despite the slightly beefed up carbon frame, it's without doubt a race bike you can ride in comfort all day long.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - bottom bracket.jpg

If you wanted to extract even more comfort, the frame and fork, thanks to the disc brakes, will take up to 30mm tyres, though I found the stock 25mm tyres ample for delivering a smooth ride on my local roads.

The Ultimate CF SLX uses the company's Sport Pro geometry, the company's raciest setup and used by the professional racers it sponsors. There are some small differences in the numbers but importantly the reach and stack remain the same across the two models.

The chainstays have grown 5mm from 410mm to 415mm to accommodate the disc brakes, and the wheelbase is, therefore, longer, up from 988mm to 996mm, but it's such a small difference that you'll be hard-pressed to detect it without side-by-side comparison testing. The disc bike hasn't lost much of its agility and if anything there's a little more composure at higher speeds.

Frame and equipment

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - bars.jpg

The frame is essentially based on the regular Ultimate CF SLX and there's the same tube shaping, including the D-shaped down tube that was introduced on the latest generation Ultimate to eke out more aerodynamic performance. Canyon claimed a 7.4 watt saving over the previous Ultimate with this change, and it reckons disc brakes only give away 1.5% to the rim version at 45kph.

Canyon also introduced an integrated seat clamp to the latest version of the Ultimate, with the internal seat clamp positioned well below the top of the seat tube to provide a claimed 15% improvement in vertical deflection. Team that with the VCLS seatpost and it delivers an outstandingly comfortable ride.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - head tube badge.jpg

To attach the Shimano brake calipers, Canyon has used the increasingly common flat mount standard, providing a clean appearance. Quick releases are out and 12mm thru-axles at both ends are in, with a handy lever on the front and an Allen bolt operated rear. Don't forget your multitool, but I'd prefer a lever on the back as well for simplicity.

Disc rotor size is open for debate, but Canyon conducted its own testing and found 160mm to be preferable to dealing with heat build-up in 140mm rotors, so the Ultimate sports the bigger rotors front and rear.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - rear hub.jpg

The carbon fibre layup has been refined to deal with the extra forces placed on the frame and fork by the disc brakes, but the weight is a claimed 820g for a size medium, about 70g heavier than the rim brake version. On the plus side, there's now room for up to 30mm tyres, unprecedented for a race bike that's not a Paris-Roubaix special. There's no rear brake bridge, which helps increase tyre clearance and allows the super skinny seat stays to be more effective at providing comfort-boosting deflection.

There is also the same Di2-compatible internal cable routing, and Canyon has tucked the hydraulic hoses inside the frame and fork. It's very neat and I experienced no rattles throughout testing. The head tube is straight, with a 1 1/4-inch untapered steerer. The idea is to keep the frontal area down for better aerodynamics, and I felt no lack of stiffness compared to a tapered head tube. The dropouts are made from carbon fibre to shed a few more grams.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - rear mech.jpg

Equipment on this £4,399 model comprises a Shimano Ultegra Di2 groupset with a semi-compact 52/36t chainset and RS805 hydraulic disc brakes paired with 160mm centre lock rotors. What can I say about this electronic shifting/hydraulic braking setup that hasn't been said before? It's excellent: the gears work a treat all the time; the battery lasts for ages; and the brakes are the best on the market right now, with excellent feel and power.

The VCLS seatpost and Fizik Antares R5 saddle go a long way to providing incredible seated comfort. The saddle noticeably deflects backwards when the rear wheel encounters a ridge or lump on the road, you can actually look down and see the saddle moving back and forth when you're riding along.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - rim and tyre.jpg

Aero handlebars are no longer only found on aero bikes; Canyon has rolled them out on its top-end Ultimate and Endurace models. The H36 Aerocockpit CF bar is surprisingly comfortable handlebar and while there's no huge amount of detectable flex when riding out of the saddle or sprinting down the road, it does appear to provide a reasonable amount of vibration damping. I do prefer the narrow round shape of a regular handlebar but that said, the top section of the aero handlebar is a comfortable place to rest your hands.

Rather neatly, the Di2 junction box is concealed in a small recess on the underside of the handlebar though it means charging the battery is a bit of a fiddle because you have to first remove the carbon plate that secures it in place.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - frame detail.jpg

Canyon has looked to accentuate the aero properties of this model by fitting deep section Mavic Cosmic Pro Carbon wheels, which certainly amp up the appearance of the bike.

'With the Mavic Cosmic Pro Carbon Disc and the Ultegra hydraulic brakes, you'll get all the benefits of carbon wheels and none of the drawbacks,' says Canyon.

What benefits are those? Well, they're more aerodynamic than a shallow section rim, and there's no denying they feel very fast when riding. But at 1,770g they're not exactly light and on a bike designed to be a great all-rounder that excels on the climbs, the choice of a heavy deep section wheel seems an odd one. I'd take a lighter, shallow rim for the type of riding the Ultimate is intended for.

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - stem.jpg

The Cosmic Pro Carbon Discs are £975 a pair and use an existing Mavic technology where carbon fibre fairings are bonded to aluminium rims, which means they're a bit heavier than full carbon wheels. The 45mm NACA rim profile does deliver a fast ride but they are prone to instability in strong cross winds compared to more modern carbon rim shapes.

Mavic's own Yksion Pro Griplink C tyres come fitted to the wheels, part of Mavic's desire to supply complete tyre and wheel systems. They are 25mm wide but don't feel as smooth or compliant on rough roads or as grippy in the wet as higher quality tyres, so I'd probably look to upgrade them if I was buying the bike.

Conclusion and rivals

Canyon ULTIMATE CF SLX DISC 8.0 DI2 - riding 4.jpg

There's no getting away from the fact this bike is nearly a kilogram heavier than the cheaper (£3,599) Ultimate CF SLX 8.0 Di2 also with a Ultegra Di2 groupset, but the extra weight isn't all in the frame and disc brakes; Canyon has specced similarly-priced Mavic Ksyrium Pro Exalith SL WTS wheels which are some 400g lighter than the deep section Cosmic Pro Carbon wheels. It seems a shame Canyon hasn't fitted lighter wheels to the disc version to reduce the weight difference between the two models.

The good thing is that Canyon isn't forcing you to buy into disc brakes, it is continuing to offer both rim and disc versions so you can make your choice. I've ridden both bikes and loved the performance of both, but choice comes down to whether your preference is for weight or braking performance. It's a tricky one, but for my riding I found the superior brakes were of greater benefit than the weight difference.

If weight is an issue for you but you definitely want disc brakes, the lightest disc-equipped race bike I've so far tested was the Specialized S-Works Tarmac Disc. It came in at 6.9kg and offered scintillating performance, but the £8k price tag was tough to stomach. It's since been supplanted by the S-Works Tarmac Disc eTap (£8,250).

Another worthy rival is the Focus Izalco Max, which costs £3,999 for a similar build of Ultegra Di2 but comes in with a lower weight, 7.5kg when I tested it last year. Like the Canyon, the Focus manages to offer that magic blend of race stiffness and all day comfort. And I'm a big fan of the RAT thru-axles.

Another option to consider is the Cannondale SuperSix Evo Disc which manages to retain the fast handling and sweet balance of the original, but with the greater stopping power and control of disc brakes. An Ultegra Di2 model will set you back the same £3,999 as the Focus, so once again the Canyon offers the lower price tag.

Verdict

Fast and comfortable race bike with predictable braking rain or shine, but could be lighter

road.cc test report

Make and model: Canyon Ultimate CF SLX Disc 8.0 Di2

Size tested: 56cm

About the bike

State the frame and fork material and method of construction. List the components used to build up the bike.

FRAME CANYON ULTIMATE CF SLX

FORK CANYON ONE ONE FOUR SLX DISC

HEADSET ACROS | CANYON

REAR DERAILLEUR SHIMANO ULTEGRA DI2, 11S

DERAILLEUR HANGER DERAILLEUR HANGER NO. 40

FRONT DERAILLEUR SHIMANO ULTEGRA DI2, 11S

BRAKE/SHIFT LEVERS SHIMANO DI2 ST-R785 HYDRAULIC

BRAKES SHIMANO BR-RS805

CASSETTE SHIMANO ULTEGRA, 11S

WHEELSET MAVIC COSMIC PRO CARBON DISC

TYRES MAVIC YKSION PRO GRIPLINK C

CRANKS SHIMANO ULTEGRA, 11S

CHAINRINGS 52 | 36

CHAIN SHIMANO CN-HG700-11

BOTTOM BRACKET SHIMANO PRESSFIT

COCKPIT CANYON H36 AEROCOCKPIT CF

HANDLEBAR TAPE CANYON ERGOSPEED GEL

SADDLE FIZIK ANTARES R5

SEAT POST CANYON S13 VCLS CF (15 - 35 MM SETBACK)

Tell us what the bike is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about the bike?

Canyon says:

For a decade the Ultimate series has stood at the pinnacle of the Canyon road bike range. These framesets are meticulously designed to combine low weight and maximum stiffness with outstanding ride quality to create an unparalleled overall package. With our Sport Pro Geometry the rider can achieve the ideal position on the bike for optimum performance and comfort for hours in the saddle. Available in a wide range of carbon or aluminium models, these machines have been proven at the top level for years and are the ride of choice for pros and enthusiasts alike.

If you want to buy a super sweet road bike with disc brakes, then the Ultimate CF SLX Disc 8.0 Di2 will be the way to go. The carbon frame has been given our Sport Pro Geometry, the same sort of fit that guys like Nairo Quintana like to have for those long days in the saddle tackling some Pyrenean climbs. Though when Shimano first released their electric shifting groupset, it represented the height of unattainable desirability even if it also sniffed a little of conspicuous consumption, now electric groupsets proliferate the pro and amateur ranks, proving that cool tech can and should become a mainstream necessity. Since the Ultimate CF SLX Disc 8.0 Di2 comes equipped with the Ultegra version, you can feel like you are being discerning in your purchasing, while still getting the sweetness that is Di2. The H36 Aero Cockpit CF has to be one of the more eye-catching design features of the whole bike, which also reduces your drag. For the other touch point, the S13 VCLS CF seatpost works to reduce road vibrations while still providing the necessary lateral stiffness. It joins forces with the Fizik Antares R5 saddle to give you the support you need to power the pedals. If you've stuck with alu-rimmed wheels for practical as well as performance reasons, the Mavic Cosmic Pro Carbon Disc will change your mind about what an amazing difference a great pair of carbon wheels can make to a bike. With the Mavic Cosmic Pro Carbon Disc and the Ultegra hydraulic brakes, you'll get all the benefits of carbon wheels and none of the drawbacks. Using the Mavic Yksion tires will also guarantee maximum traction while cornering and great response to wet road conditions. If you are looking to purchase a top-quality race bike, you should treat yourself to an Ultimate CF SLX Disc 8.0 Di2 and feel what the best race bike of the year feels like.

Frame and fork

Overall rating for frame and fork
 
9/10

Tell us about the build quality and finish of the frame and fork?

Canyon doesn't make its own frames but the quality control is clearly high as the build quality is up there with the best.

Tell us about the materials used in the frame and fork?

Full carbon fibre frame and fork with high-quality finish and appearance.

Tell us about the geometry of the frame and fork?

It uses Canyon's raciest and most aggressive Sport Pro geometry, the same as the pros use, and provides fast and nimble handling.

How was the bike in terms of height and reach? How did it compare to other bikes of the same stated size?

The size medium fitted me really well, luckily as the one-piece stem and handlebar doesn't allow easy stem length adjustments.

Riding the bike

Was the bike comfortable to ride? Tell us how you felt about the ride quality.

Race bikes traditionally aren't known for their comfort, but the Ultimate offers a really smooth and compliant ride. It's good enough to ride all day.

Did the bike feel stiff in the right places? Did any part of the bike feel too stiff or too flexible?

Get out of the saddle and give it some serious power and the bike responds with a level of sharpness you expect from a race bike.

How did the bike transfer power? Did it feel efficient?

There's no delay or lag when putting down the power.

Was there any toe-clip overlap with the front wheel? If so, was it a problem?

None.

How would you describe the steering? Was it lively, neutral or unresponsive? Neutral

Tell us some more about the handling. How did the bike feel overall? Did it do particular things well or badly?

It's an agile and nimble bike with great cornering manners.

Which components had the most effect (good or bad) on the bike's comfort? would you recommend any changes?

The Fizik saddle and VCLS saddle combine to create a very comfortable ride.

Which components had the most effect (good or bad) on the bike's stiffness? would you recommend any changes?

The handlebar balances the demands of stiffness and comfort well, the vertical stiffness isn't so high that you get an unmanageable level of feedback through the front-end.

Which components had the most effect (good or bad) on the bike's efficiency? would you recommend any changes?

You could save weight with some lighter wheels, but the aero performance of the Mavic Cosmic wheels does impress when the speed rises.

Rate the bike for efficiency of power transfer:
 
9/10
Rate the bike for acceleration:
 
8/10
Rate the bike for sprinting:
 
8/10
Rate the bike for high speed stability:
 
9/10
Rate the bike for cruising speed stability:
 
8/10
Rate the bike for low speed stability:
 
9/10
Rate the bike for flat cornering:
 
8/10
Rate the bike for cornering on descents:
 
9/10
Rate the bike for climbing:
 
7/10

The drivetrain

Rate the drivetrain for performance:
 
9/10
Rate the drivetrain for durability:
 
8/10
Rate the drivetrain for weight:
 
8/10
Rate the drivetrain for value:
 
8/10

Wheels and tyres

Rate the wheels for performance:
 
7/10
Rate the wheels for durability:
 
7/10
Rate the wheels for weight:
 
6/10
Rate the wheels for comfort:
 
8/10
Rate the wheels for value:
 
8/10
Rate the tyres for performance:
 
7/10
Rate the tyres for durability:
 
8/10
Rate the tyres for weight:
 
8/10
Rate the tyres for comfort:
 
7/10
Rate the tyres for value:
 
8/10

Controls

Rate the controls for performance:
 
9/10
Rate the controls for durability:
 
8/10
Rate the controls for weight:
 
8/10
Rate the controls for comfort:
 
8/10
Rate the controls for value:
 
8/10

Your summary

Did you enjoy riding the bike? Yes

Would you consider buying the bike? Yes

Would you recommend the bike to a friend? Yes

Rate the bike overall for performance:
 
9/10
Rate the bike overall for value:
 
8/10

Use this box to explain your score

It's cheaper than similarly equipped disc race bikes so it offers good value for money, but if you don't want disc brakes the regular rim brake Ultimate is substantially cheaper. And lighter.

Overall rating: 9/10

About the tester

Age: 31  Height: 180  Weight: 67

I usually ride:   My best bike is:

I've been riding for: 10-20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: road racing, time trialling, cyclo cross, commuting, touring, mtb,

David worked on the road.cc tech team from 2012-2020. Previously he was editor of Bikemagic.com and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds, and you can now find him over on his own YouTube channel David Arthur - Just Ride Bikes

Add new comment

34 comments

Avatar
TonyMM | 6 years ago
0 likes

What is the brand/ model of the overshoes of the tester of the bike?

Avatar
sammutd88 | 7 years ago
0 likes

It's an interesting comment I saw about Canyon not being transparent on carbon layups. To some point this is correct. I spoke to someone at Canyon Australia and was told my Ultimate Cf Sl was basically the previous generation SLX. Not sure how correct that is but I think calling it a "lower grade" of carbon would be incorrect. Maybe a different layup but if this is in fact the truth, the current sl was a Worldtour bike. The slx just has a different, more advanced layup and things like the seatpost clamp moved down the seat tube. 

Avatar
srchar | 7 years ago
1 like

"The hydraulic disc brakes, with 160mm rotors front and rear, are simply superior in every situation to even perfectly set up rim brakes in perfect conditions."

Please could someone explain the physics of this.  If I want, I can pull my front rim brake hard enough to immediately lock the wheel and put me over the bars, in dry conditions, even with my arse hanging somewhere over the back wheel.  I don't see how you can improve from that point.

Happy to be educated if there is a genuine scientific explanation for what discs bring to the table in dry conditions.

In wet conditions, I can see the benefit and indeed have discs on my commuter.

Avatar
paulrattew replied to srchar | 7 years ago
1 like

srchar wrote:

"The hydraulic disc brakes, with 160mm rotors front and rear, are simply superior in every situation to even perfectly set up rim brakes in perfect conditions."

Please could someone explain the physics of this.  If I want, I can pull my front rim brake hard enough to immediately lock the wheel and put me over the bars, in dry conditions, even with my arse hanging somewhere over the back wheel.  I don't see how you can improve from that point.

Happy to be educated if there is a genuine scientific explanation for what discs bring to the table in dry conditions.

In wet conditions, I can see the benefit and indeed have discs on my commuter.

 

OK, I'll have a go.

If you lock the wheels when you brake then essentially the system (which includes the rider) has failed. Locked wheels will skid instead of stopping. The key point here being that the ultimate amount of power that a braking system provides isn't the measure on which it should be judged by. Control of that power and its range (i.e. the modulation) is the important aspect when it comes to braking power.

Rim brakes do, as you have pointed out, provide a lot of power (assuming ideal braking conditions - dry clean braking surface etc). Because they are further away from the hub, the amount of force needed to stop the wheel from rotating is considerably less than that needed closer to the hub (basic leverage principles). This means that the range of power available to a rim brake before locking the wheel is actually quite narrow.

As a disc brake operatates much closer to the hub a far greater degree of power is needed to lock the wheel. The power available with disc braking before locking up is therefore much greater, giving the rider a much greater degree of control of that braking force (i.e. much better modulation). Yes disc brakes have vastly more power, but a far greater degree of this is actually usable before the wheel will lock.

If the rim brake system is operating on a less than perfect braking surface, either because of water, oil, dust, dirt or whatever, then the comparative difference that arises between the two systems is of course increased. On rim brakes, the initial moments of braking will be spent clearing the braking surface rather than slowing the wheel rotation. This can easily lead to locking the wheel, as you overbrake due to the initial lack of braking response. Similar dirt etc on a disc rotor has less of an effect as the amount of power needed to lock the wheel is much higher (so applying more pressure is less likely to cause a lock up)

 

 

Avatar
srchar replied to paulrattew | 7 years ago
0 likes

paulrattew wrote:

Because they are further away from the hub...

As a disc brake operatates much closer to the hub a far greater degree of power is needed to lock the wheel. The power available with disc braking before locking up is therefore much greater, giving the rider a much greater degree of control of that braking force <snip>

Thanks Paul, that makes sense.

Avatar
macbob replied to paulrattew | 7 years ago
0 likes

paulrattew wrote:

srchar wrote:

"The hydraulic disc brakes, with 160mm rotors front and rear, are simply superior in every situation to even perfectly set up rim brakes in perfect conditions."

Please could someone explain the physics of this.  If I want, I can pull my front rim brake hard enough to immediately lock the wheel and put me over the bars, in dry conditions, even with my arse hanging somewhere over the back wheel.  I don't see how you can improve from that point.

Happy to be educated if there is a genuine scientific explanation for what discs bring to the table in dry conditions.

In wet conditions, I can see the benefit and indeed have discs on my commuter.

 

OK, I'll have a go.

If you lock the wheels when you brake then essentially the system (which includes the rider) has failed. Locked wheels will skid instead of stopping. The key point here being that the ultimate amount of power that a braking system provides isn't the measure on which it should be judged by. Control of that power and its range (i.e. the modulation) is the important aspect when it comes to braking power.

Rim brakes do, as you have pointed out, provide a lot of power (assuming ideal braking conditions - dry clean braking surface etc). Because they are further away from the hub, the amount of force needed to stop the wheel from rotating is considerably less than that needed closer to the hub (basic leverage principles). This means that the range of power available to a rim brake before locking the wheel is actually quite narrow.

As a disc brake operatates much closer to the hub a far greater degree of power is needed to lock the wheel. The power available with disc braking before locking up is therefore much greater, giving the rider a much greater degree of control of that braking force (i.e. much better modulation). Yes disc brakes have vastly more power, but a far greater degree of this is actually usable before the wheel will lock.

If the rim brake system is operating on a less than perfect braking surface, either because of water, oil, dust, dirt or whatever, then the comparative difference that arises between the two systems is of course increased. On rim brakes, the initial moments of braking will be spent clearing the braking surface rather than slowing the wheel rotation. This can easily lead to locking the wheel, as you overbrake due to the initial lack of braking response. Similar dirt etc on a disc rotor has less of an effect as the amount of power needed to lock the wheel is much higher (so applying more pressure is less likely to cause a lock up)

 

 

Thank you for that very clear explanation of the benefits of discs.

Alternately, you can just ride disc and rim brakes over various road and weather conditions and come to the obvious conclusion that you will never buy another rim brake bike ever again.

Avatar
DrJDog replied to macbob | 7 years ago
0 likes

macbob]</p>

<p>[quote=paulrattew wrote:

Alternately, you can just ride disc and rim brakes over various road and weather conditions and come to the obvious conclusion that you will never buy another rim brake bike ever again.

 

I agree. Recently bought a new commuter bike with hydraulic discs and I am regretting last year's purchase of a road bike with rim brakes.

Avatar
Ciarán Carroll | 7 years ago
1 like

I honestly can't see the point in this when you can buy the SL disc for €2700 which has ultegra mechanical, DT Swiss wheels, Conti GP4000s and according to canyon weighs 100g less

Avatar
Nimrod808 | 7 years ago
0 likes

I  took delivery of my Ultimate CF SLX 8.0 Di2 last Monday. Done just short of 200 miles so far. The Ultimate was to replace an Aeroad so I knew which frame size to go for. First thing I done was replace the tyres with Cont GP4000's. The choice was between Ultimate or the similar specced Endurace, I have a Giant Defy for winter duties and wanted something more sporty geometry wise than the Giant so went for the Ultimate. Very happy with it, integrated bar/stem is a nice touch. Comfortable over a 3 to 4 hour run without feeling I'm sitting up on it. If I was to upgrade anything it would be the wheels to something slightly lighter, probably a 50mmm section full carbon like a Hunt, but  stock 45mm Mavics are solid and handle fine even in cross winds.

Avatar
Leviathan | 7 years ago
0 likes

What is that band of pink stuff at the top of his overshoes? And why is he wearing pink gloves? Where do you even buy those?

Avatar
bendertherobot | 7 years ago
0 likes

Orro would be worth looking at as well.

The Signature Gold disc, with amazing paintjob, Fulcrum Quattro Carbon wheels, and Di2 is £300 less than the Canyon. And, again, if you walked into a dealer, you'd probably knock 10% off that.

And you could even just spend £2799

https://www.orrobikes.com/bikes/road/gold-stc-disc-ultegra-di2

Avatar
StraelGuy | 7 years ago
1 like

Nice choice, I've heard nothing but good things about Orbea and the 2017 colour schemes are brilliant.

Avatar
check12 | 7 years ago
1 like

The review calls this a race bike but if you aren't a pro, you can't race on it, or am I wrong? Fast bike with disc brakes? 

Avatar
Leodis | 7 years ago
0 likes

I waited some time for this release and was dissapointed with the result of the bike in terms of weight and wheelset choice.

Also with Ultegra being updated in 2018 I didnt think spending such an amount would be worth it and the Canyon Ultimate 9 with DA isnt due until July at least.

Avatar
bauchlebastart replied to Leodis | 7 years ago
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Leodis wrote:

I waited some time for this release and was dissapointed with the result of the bike in terms of weight and wheelset choice.

Also with Ultegra being updated in 2018 I didnt think spending such an amount would be worth it and the Canyon Ultimate 9 with DA isnt due until July at least.

Buy an Endurace CF SLX 8.0, get Canyon to swap out for a 10mm longer cockpit and use less headset spacers. The geometry differences between the Ultimate and Endurace disc frames are very small. You'll also get nicer full carbon wheels and it will be lighter.

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Leodis replied to bauchlebastart | 7 years ago
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bauchlebastart wrote:

Leodis wrote:

I waited some time for this release and was dissapointed with the result of the bike in terms of weight and wheelset choice.

Also with Ultegra being updated in 2018 I didnt think spending such an amount would be worth it and the Canyon Ultimate 9 with DA isnt due until July at least.

Buy an Endurace CF SLX 8.0, get Canyon to swap out for a 10mm longer cockpit and use less headset spacers. The geometry differences between the Ultimate and Endurace disc frames are very small. You'll also get nicer full carbon wheels and it will be lighter.

Thanks, Ordered a Orbea Orca M10 team disc and upgraded the wheelset.

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Bike Swanky | 7 years ago
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Canyon make some very nice bikes and they should be applauded for that.

However, speaking as a retailer, I think that consumers are starting to value the after sales support that many other brands provide over and above Canyon.

Also, Canyon are not competitive price-wise any more, especially when you consider all the options and support that comes with choosing a LBS.

So, for example, a direct comparitor to this model is this:

https://www.orbea.com/gb-en/bicycles/orca-m20iteam-d

The wheels are different obviously but the Canyon OEM wheels have carbon flanges so that they look like they're carbon without any of the real benefits.  They still look bling though  1

An example of another benefit you get is the MyO custom painting option for the frame:

https://www.orbea.com/gb-en/myo/step-2

It's a lot of fun designing this, although it can get frustrating if you're an options person  1

Then, there's the warranty aspect.  

Read sections 7.4 and 7.2 of this:

https://www.canyon.com/en-gb/legal/terms-conditions/

7.2 makes a codswhollop of the whole warranty IMHO.  I've heard good things and some awful things from Canyon.  Whereas, I know from experience which brands offer a meaningful warranty and which do not.

Finally, the frame makes up the heart of the bike and is really where a brand adds its value.  All the other components are available to all the other brands.  Canyon frames are good.  However, they don't seem to be all that transparent about the carbon layups used.

Others like Felt, Orro, BH or Orbea give a lot of detail about what makes their frames stand out above the rest.

 

 

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shutuplegz replied to Bike Swanky | 7 years ago
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Bike Swanky wrote:

Canyon make some very nice bikes and they should be applauded for that.

However, speaking as a retailer, I think that consumers are starting to value the after sales support that many other brands provide over and above Canyon.

Also, Canyon are not competitive price-wise any more, especially when you consider all the options and support that comes with choosing a LBS.

So, for example, a direct comparitor to this model is this:

https://www.orbea.com/gb-en/bicycles/orca-m20iteam-d

The wheels are different obviously but the Canyon OEM wheels have carbon flanges so that they look like they're carbon without any of the real benefits.  They still look bling though  1

An example of another benefit you get is the MyO custom painting option for the frame:

https://www.orbea.com/gb-en/myo/step-2

It's a lot of fun designing this, although it can get frustrating if you're an options person  1

Then, there's the warranty aspect.  

Read sections 7.4 and 7.2 of this:

https://www.canyon.com/en-gb/legal/terms-conditions/

7.2 makes a codswhollop of the whole warranty IMHO.  I've heard good things and some awful things from Canyon.  Whereas, I know from experience which brands offer a meaningful warranty and which do not.

Finally, the frame makes up the heart of the bike and is really where a brand adds its value.  All the other components are available to all the other brands.  Canyon frames are good.  However, they don't seem to be all that transparent about the carbon layups used.

Others like Felt, Orro, BH or Orbea give a lot of detail about what makes their frames stand out above the rest.

 

 

 

I agree on prices. Even last year Canyon still looked very competetive. Maybe they are blaming Brexit but this year's prices actually look quite expensive compared to many brands.

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bendertherobot replied to Bike Swanky | 7 years ago
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Bike Swanky wrote:

Canyon make some very nice bikes and they should be applauded for that.

However, speaking as a retailer, I think that consumers are starting to value the after sales support that many other brands provide over and above Canyon.

Also, Canyon are not competitive price-wise any more, especially when you consider all the options and support that comes with choosing a LBS.

So, for example, a direct comparitor to this model is this:

https://www.orbea.com/gb-en/bicycles/orca-m20iteam-d

The wheels are different obviously but the Canyon OEM wheels have carbon flanges so that they look like they're carbon without any of the real benefits.  They still look bling though  1

An example of another benefit you get is the MyO custom painting option for the frame:

https://www.orbea.com/gb-en/myo/step-2

It's a lot of fun designing this, although it can get frustrating if you're an options person  1

Then, there's the warranty aspect.  

Read sections 7.4 and 7.2 of this:

https://www.canyon.com/en-gb/legal/terms-conditions/

7.2 makes a codswhollop of the whole warranty IMHO.  I've heard good things and some awful things from Canyon.  Whereas, I know from experience which brands offer a meaningful warranty and which do not.

Finally, the frame makes up the heart of the bike and is really where a brand adds its value.  All the other components are available to all the other brands.  Canyon frames are good.  However, they don't seem to be all that transparent about the carbon layups used.

Others like Felt, Orro, BH or Orbea give a lot of detail about what makes their frames stand out above the rest.

 

It's poorly expressed but 7.2 is actually in line with the Consumer Rights Act 2015 which has a get out in case of disproportionate repair costs (etc). It doens't mean that there's no remedy available at all, just not that remedy. So, Canyon could refuse to repair and offer a replacement/reduction in the price instead.

But the other point is now true. I'd be looking at getting a dealer to knock 10% off a Hi Mod Cannondale Synapse or going Ribble Aero 883 and saving a massive amount now. Not being able to easily deal with the manufacturer is off putting and no longer justified in the price.

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shutuplegz | 7 years ago
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I have asked Canyon if they would ever consider changing the spec of these wheels either on an individual customer basis or as a permenant change to the model spec. "Nope" was the emphatic response I got from them!

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macbob replied to shutuplegz | 7 years ago
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"I have asked Canyon if they would ever consider changing the spec of these wheels either on an individual customer basis or as a permenant change to the model spec. "Nope" was the emphatic response I got from them!"

But they will always say that while they are trying to shift the current incarnation of the bike.

If they feel they are losing sales because of the wheels (and my guess is they are - certainly mine) then sooner-or-later the penny might drop.

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macbob | 7 years ago
3 likes

David,

Thank you for an excellent review - I almost feel as if I've ridden the bike myself.

I'm really glad you have highlighted the odd choice of wheels which seem to have been chosen for their bling factor rather than practicality, weight or cost. In breezy parts of the world (like mine) deep-section wheels are a real turn-off. In time, Canyon might offer wheel options.

It would also be helpful if reviewers could quantify certain bike comparisons particularly on internet-order bikes like Canyon. Reviewers tend to say the Ultimate is not as comfortable as the Endurace and the Endurace is not as nimble as the Ultimate. I know its tricky to be more specific when you haven't ridden the bikes back-to-back but at least you have ridden both bikes. How much less comfortable - how much more nimble ?

Thirdly, you say nobody times themselves uphill so a slightly heavier bike is not an issue in real-world terms. This is true, but not the whole story. I ride my weekly 100k club run over the undulating Dorset hills on two bikes (one 2 kilos heavier than the other one). I am always more tired on the home stretch on the heavy bike than I am on the light bike. It would be odd if I wasn't.

Finally I look forward to your review of the new Rose X-Lite CDX (available this Spring) which is cheaper than the Canyon, the top model weighs 7 kilos and comes with SRAM Red e-tap/hydraulic brakes and is £4100 (but the range starts at £2750 & 7.15kilos If they've got that right it could be a game-changer.

Thanks again.

 

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Leodis replied to macbob | 7 years ago
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macbob wrote:

Finally I look forward to your review of the new Rose X-Lite CDX (available this Spring) which is cheaper than the Canyon, the top model weighs 7 kilos and comes with SRAM Red e-tap/hydraulic brakes and is £4100 (but the range starts at £2750 & 7.15kilos If they've got that right it could be a game-changer.

Thanks again.

 

I was looking at the Rose X-Lite CDX 8800 but the wheelset are Rose own brand which really put me off and the other offerings were Spline 38 @ £500 and looked too busy on the bike.  A set of Fulcrum Q Racing carbons would look good on it.

Avatar
Fluffed replied to Leodis | 7 years ago
1 like

Quote:

I was looking at the Rose X-Lite CDX 8800 but the wheelset are Rose own brand which really put me off 

Looking at the CDX  Disc also, I asked about the wheels because there isn't any info:

The reply was ROSE CW-1550 Carbon Disc are about 1550g with an inner width of 17,25mm (and 44mm rims, which I knew). Seem pretty good for an own brand?

However Rose seem to be well known for slightly underweighting their bikes on the website as opposed to the real world...

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shutuplegz | 7 years ago
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I would be very tempted by this bike if it wasn't for the strange wheel choice - heavy aluminium/carbon hybrid rims whereas the same Endurace model has much nicer/lighter full carbon rims. This makes the CF SLX 8.0 Disc Di2 from the Ultimate range look like poor value in comparison although on paper you are supposedly getting a 'better' (lighter) frame. To my mind they really should have specced better wheels on this bike even if it meant putting the price higher than the same model in the Endurace and Aeroad ranges - it is the 'ultimate' model after all.

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bauchlebastart replied to shutuplegz | 7 years ago
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shutuplegz wrote:

I would be very tempted by this bike if it wasn't for the strange wheel choice - heavy aluminium/carbon hybrid rims whereas the same Endurace model has much nicer/lighter full carbon rims. This makes the CF SLX 8.0 Disc Di2 from the Ultimate range look like poor value in comparison although on paper you are supposedly getting a 'better' (lighter) frame. To my mind they really should have specced better wheels on this bike even if it meant putting the price higher than the same model in the Endurace and Aeroad ranges - it is the 'ultimate' model after all.

 

The Endurace CFSLX frame is quoted as having the same weight as the Ultimate CFSLX at 820g. They differ only in their geometry. You may be confusing this with the Endurace CF frame which uses a lower grade carbon.

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shutuplegz replied to bauchlebastart | 7 years ago
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bauchlebastart wrote:

shutuplegz wrote:

I would be very tempted by this bike if it wasn't for the strange wheel choice - heavy aluminium/carbon hybrid rims whereas the same Endurace model has much nicer/lighter full carbon rims. This makes the CF SLX 8.0 Disc Di2 from the Ultimate range look like poor value in comparison although on paper you are supposedly getting a 'better' (lighter) frame. To my mind they really should have specced better wheels on this bike even if it meant putting the price higher than the same model in the Endurace and Aeroad ranges - it is the 'ultimate' model after all.

 

The Endurace CFSLX frame is quoted as having the same weight as the Ultimate CFSLX at 820g. They differ only in their geometry. You may be confusing this with the Endurace CF frame which uses a lower grade carbon.

 

Strange, when I looked the other day their website was showing a difference between the Ultimate frame and the Endurace frame. From memory it was something like 820g vs 935g (with the Aeroad at 980g. Makes the Endurace look even better value.

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bendertherobot | 7 years ago
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The Condor Bivio X still has the ability to fit both. It's an aspect I wasn't aesthetically keen on. (Both meaning cantis rather than rims mind)

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Johnnystorm | 7 years ago
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It made some sense on MTBs as the frames were older designs that hasn't been developed for discs and/or the shifters & brakes weren't integrated like on a road bike. You have to have a cable front or else persuade Shimano to sell you one hydro brifter and one cable for the rear, and they look totally different. The other reason is of course that it's a terrible idea.  3

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wycombewheeler replied to Johnnystorm | 7 years ago
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Johnnystorm wrote:

It made some sense on MTBs as the frames were older designs that hasn't been developed for discs and/or the shifters & brakes weren't integrated like on a road bike. You have to have a cable front or else persuade Shimano to sell you one hydro brifter and one cable for the rear, and they look totally different. The other reason is of course that it's a terrible idea.  3

I think it was as much because buying upgraded suspension forks allowed fitting the front disc brake to any bike. And as mentioned previously seperate brake levers from gear levers was quite normal.
Luckily my orange evo2 ftame came supplied with v brakes and disc brake mountings.

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