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Are we seeing the death of the triple chainset?

Are the triple crankset's days numbered? road.cc investigates and speaks to SRAM, Shimano and Campagnolo

Triple ring chainsets have fallen out of fashion in recent years, but are they threatened with extinction?

Modern road bikes can come with any one of a number of different types of chainset fitted as standard - there's standard, compact and semi-compact chainsets for starters. But just because your bike came fitted with a certain type of chainset doesn't necessarily mean it's the right one for you. 

We asked SRAM, Shimano and Campagnolo if they feel that the triple chainsets days are numbered. Here are their replies: 

Campagnolo

Campagnolo hasn't introduced any new triple chainsets since 2012, but their  Athena 11-speed, and Centaur and Veloce 10-speed triples are still available. 

Campagnolo told us:

While most athletes are covered by the gearing offered by compact chainsets and larger cassettes, there are still a faithful few who are quite keen to use the triple. Several requests from areas in France, Belgium and Canada strangely enough.

However, with the advantages of the compact crankset and a movement towards larger tooth count cassettes we believe that those wishing to run a triple ring crankset will diminish further as they will adopt increasingly more often the two chainring solution. At the moment we still offer the triple.

SRAM

As we mentioned above, SRAM has never bothered with road bike triples, and in recent years has been promoting single-chainring gear systems as the ultimate in simplicity even for racing. What they had to say about triples isn't very surprising then:

Is the triple chainset dead?

Dead & buried.

Where do you see the future of modern road bike chainsets?

There’s a bright future for 1x. Simpler, quieter, more secure. Current cassette options allow gear range for most cycling disciplines. 1x even provides a more aerodynamic drivetrain for TT and triathlon. 2x remains dominant, of course, because it can provide the widest gear range and closer gear ratio steps.

Shimano

You could once get a Dura-Ace triple chainset if you were building a very posh pass-stormer, but no more. As its top-end groupsets switched from 10 to 11 sprockets, Shimano quietly dropped triples.

Shimano told us:

Within Shimano's current road line up triple chainsets are more common at Tiagra level and below. These groupsets attract a wider audience/riding style and therefore the demands on the components are different to those favoured by competitive and performance cyclists.

Triple chainsets have closer gear ratios, making the steps between the gears easier to move through, and therefore increasing the efficiency of personal performance. For many riders, a triple chainset provides options to allow you to continue cycling in many circumstances/conditions.

However, at the competitive end of cycling, trends for many years have been in favour of double chainsets. Wider cassette ratios are now able to cover the vast majority of gear ranges, in combination with lower crankset weight values that performance athletes demand.

Which chainset is right for you?

So if the triple is dead, what are your common choices? Let's go through the main road systems to help you find the right one for you.

53/39 'Standard' or racing set-up 
Ideal for: Pros, strong riders, or flat conditions (maybe a bit more than that but you get my drift)

50/34  'Compact'
Ideal for: Most people, good all-rounder ideally suited to hilly conditions

52/36 'Semi-compact'
Ideal for: Increasingly pros, but also the rest of us mortals too, strong all rounder, ideal for hilly conditions, paired with 11-32 cassette should get most people up even the biggest mountains.

48/32 and 46/30 'Sub-compact'
Ideal for: Touring, gravel and adventure bikes, it takes the existing idea of the compact chainset a step further, yielding gearing that’s ideal for bikes used across a range of surfaces and terrains

1x11 single chainring
Ideal for: Cyclocross, gravel and adventure riding. The single ring and wide-range (10-42t) cassette provides much of the range of a compact and shifting simplicity along with increased mud and ground clearance

- Read more: Which chainset is right for you?

The compact killed the triple

Gearing options have increased substantially over the years with the advent of the compact chainset the biggest reason for the demise of the triple. The arrival of the compact immediately sparked debate surrounding the death of the triple chainset, and they’re now much less noticeable in any of the big three groupset manufacturers - SRAM, Shimano and Campagnolo - ranges than they used to be. 

retro chainset - 1 (1).jpg

Before the compact came along, your crankset choice was largely split between a double for racing and a triple for touring and Audax riding. At this time of limited choice, a triple was appealing for any non-racing applications, particularly touring or Audax bikes laden with luggage, the lower gears helping to spin up the climbs. 

The new wave of sportive bikes sparked the development for a chainset that offered most of the range of the triple but with better chainline, lower weight and, arguably, better looks on a sporty carbon bike. 

- Struggling on the hills? If you need lower gears to make climbing easier, here's how to get them

The compact was an instant success. Popularised by FSA soon after the turn of the century, the company met these sportive bike requirements and when paired with the increased range of the 10-speed cassettes introduced at roughly the same time, provided most of the same low gearing as a typical triple setup.

A triple does offer a wide range of gears, but there is a lot of duplication. A 50/34 compact with a 12-29 11-speed cassette provided minimal difference in range from a 53/42/30 triple with a 13-29 cassette. The small compromise in reduced gear choices and range was compensated by reduced less gear duplication, lower groupset system weight and a narrow Q-factor.

Compacts were even used in professional races too, Tyler Hamilton using a compact on a mountain stage of the 2003 Tour de France. The fate of the triple for the new breed of performance focused sportive bikes and cyclists was sealed forever. 

The chainset evolution

The evolution of the chainset and the reduction of the number of rings has been helped by the growing cassette range and increased gears of each subsequent groupset release. Back in the day, you’d be lucky with a 6-speed, 11-23 cassette, fine for racers, but the only way to get low gears without huge gaps — for touring, Audax or leisure cycling — was to fit a triple chainset. 

With the advent of 9, 10 and 11-speed groupsets and an increased cassette range, with 11-30 and 11-34 now common options, there’s less need for a triple chainset. You can now get a wide spread of ratios with less duplication of gears.

Dura-Ace 9100 - crank 1.jpg

A triple chainset is essentially a double with a smaller chainring bolted on. Triple chainsets require special front derailleurs and shifters, along with a matching long cage rear derailleur to accommodate the long chain needed to cover the full range of sprocket options. Reducing the need for specific components was a boon to manufacturers as it tidied up product lines.

And so they fell out of favour with manufacturers. Shimano and Campagnolo wasted no time dropping triples from their top-end ranges, Dura-Ace and Record respectively, replacing them with new compacts. SRAM didn’t even make a triple chainset when it first got into the road bike groupset market, and has been a proponent of the single ring drivetrain. 

FSA K-Force Light 52/36 semi-compact chainset

Now there are an increasing array of options. The semi-compact (52/36t) has been a hit, popular with racers and performance minded cyclists, and some reckon it even threatens the compact. 

More recent is the sub-compact (48/32 and 46/30) for adventure and touring cyclists where lower gears for tackling hillier terrain with heavier bikes are required. With a 46/30 and an 11-34 cassette you're looking at the kind of gear range that used to be only easily achieved with a triple, and it's possible to go even wider and lower if you bend the rules a bit.

SRAM Force CX1 Groupset - chainset.jpg

- First look: Does the Praxis Works Alba 48/32 herald the era of the sub-compact chainset?

Add to the mix too SRAM’s 1x11 approach, which pairs a single chainring with a super wide-range cassette, and it looks like the triple chainset has been pushed to the very fringes of cycling.

Do you think the triple is dead or is there still a place for it?

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

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128 comments

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sancho | 6 years ago
3 likes

Once again, the manufacturers do what is best for them, not for the users. I'm a rather heavy cyclist who takes fun climbing mountains. I'm not the youngest one. This last month, I climbed several cols in the Alps, including the Galibier. I ride with one of the last (if not the last) Trek Domane edition with Shimano 105 triple. On several places, I would have been stuck with a compact. I'm glad I had a 30x32 to carry on turning legs. Anyway, even far from mountains, in my local hills or on the flat, I'm 80% of the time on the 39. Only on the 50 in descents or with a strong wind behind me. A compact wouldn't fit me at all, and I'm scared for the day I'll have to change.

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LastBoyScout | 6 years ago
0 likes

All my road bikes have had double chainsets - in the past, even I've rejected buying a road bike (Felt something or other, years ago) as it had a triple chainset (shop wouldn't swap it). I've done some very hilly rides on a 53/39 chainset by swapping the usual cassette for an 11-32 mountain bike cassette, which worked very well, but does mean you get bigger jumps between the gears.

For that reason alone, I'm not convinced by the 1x arguments for road bikes.

My newest road bike has a compact chainset, which I like, although it lacks that top speed on big, fast downhills.

My mountain bike has a triple and is currently being turned into a touring bike for some big hills, so that's staying.

Although I'm not quite buying into the whole 1x thing off road, either, it does seem to be becoming the standard on my local trails, where I rarely change out of the big ring at the front, as the hills are so short and can be attacked for a short burst.

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sbarner | 6 years ago
3 likes

If we think from the rider's perspective, and not the manufacturer's, the goal is to have a range of gearing that is suitable for the terrain encountered, with jumps between the gears that are evenly spaced and small enough to allow the rider to keep a fairly steady cadence.  The ideal would be an inifinitely variable, automatically shifting transmission with an override that allows the rider to alter its behavior, lightweight enough that there is no weight penalty over the current designs.  Oh, and it should be at least as reliable as current designs, and have no significant increased cost, as well.  Of course, these systems do not exist, yet.

When we had six and seven speed freewheels, with the smallest cogs fixed at 12, 13 or 14 teeth, the variable was the largest cog and the constraint was the amount of difference between adjacent cogs.  Too wide, and it didn't meet the "small change in gearing" goal.  The extra chainring of a triple helped here, as one could get a nice, low gear with, say, a 28 or 30-tooth inner ring and a 26 or 28-tooth cog.  Those loading up their touring bikes, climbing ultra-steep hills, or just with out-of-condition legs could push this much lower with minimal changes.  While some weenies (I was one) calculated the ratio of each combination and selected individual rings and cogs to make the jumps between gears as evenly as possible while getting the desired range (remember "half-step-plus-granny?), and some even taped miniature gear charts to their handlebars, this attention to gearing detail missed the big point of how people actually ride multiple chainring bikes.

One quickly learns that perfect gear combination is an elusive thing, at least in an undulating state like Vermont. Brifters, ramped cogs, and 8 to 11-spd cassettes have spoiled us by leading us into a riding style in which we're shifting every few seconds at times to grab a better gear for the changing terrain.  With a triple, you pick the ring by the current general state of things--if trending upward you'll likely be in the middle ring, shifting around in the back.  If the road levels out or trends downward, it's a shift to the big ring, accompanied by a single shift in the opposite direction in the rear, and you're back to working the right sfifter.  Dramatic changes in road pitch might complicate things a bit, but that's where experience kicks in.  The inner ring of a triple is just there for the steepest climbs, and only used with the largest three or four cogs.

Yes, there's overlap with a triple, but it doesn't matter because that's not the way you ride it. With a 3 x 9 setup, you are probably only using 20 or so of the 27 possible combinations, and some of those 20 are close enough to be duplicates, but this is invisible to the rider, in practice, and although the number of useless combinations is greater, the number you actually use are pretty close to what you'd get out of most 2 x 11 setups.  Weight penalty is not as much as one might think.  The BB spindle is a few mm longer, there's the extra ring and bolts, a few grams in making the crank beefier to mount that ring and a few extra grams in the derailleur cage, but these are partially offset by the ability to run a closer range cassette and slightly shorter chain.  You really need to go 1 x 11 to get any real weight savings while matching the range of a triple, because you lose a ring or two, the entire front derailleur, its cable, and the left brifter reverts to a simple brake lever. This more than offsets the jump in the size of the largest cogs on the cassette.

The problem with compact cranks is the huge jump between the chainrings, which complicates the shifting, as you need to shift at least two cogs in the rear when you shift the front.  I had a bike setup with a 12 - 23 cassette and 34 - 50 compact and found it a total pain, as I was constantly making the decidedly unsnappy chainring shift.  Moving to a 26 in the rear didn't help a lot.  These compact setups work best when the range on the cassette is large enough to reduce front shifts, such as with a 32-tooth cog, but this then requires a lot of cogs, or the jumps between gears become too great.

What's driving the abandonment of the triple is the move to 10 and 11-spd cassettes, and this is primarily driven by industry marketing. For most riders, a 10-spd cassette with 11 and 12-tooth cogs is effetively an 8-speed, even when paired with a 50-tooth chainring.  To gain these unneeded cogs, the rider gives up a bit of durability, reliability, and ease of maintenance, while incurring increased cost.  While most industry folks see 9-speed cassettes as being merely a brief transition between the 8 and 10-speed eras, I would argue that it might just be the ideal number of cogs for 130mm spacing, and thus for modern bike designs.  Remember, it's tough to do much with rear spacing and not impact chainline and thus Q-factor.

The savior for compact gearing will likely be electronic shifting, especially when it handles those transition shifts in its software algorithms.  For those of use sticking with mechanical systems, and who ride the big hills, the 3 x 9 triple might just be the ideal system long after the manufacturers scrap the equipment to make them.

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Dave F | 5 years ago
0 likes

I have a 10 year old Cannondale Synapse 5 with a 50/38/30 triple. Never had a problem with the gears, regarding maintenance. I use the 38 about 90 % of the time, the 30 gear about 10 % , the 50 almost never. We have hills in Southern California, nothing like the hills and mountains in Europe, but hills nonetheless. I need my triple. I'm not a skinny person.

Test rode  a 2018 Specialized Roubaix Sport in the dealer parking lot.  I wasn't able to test climb with the Roubaix, just ride in the parking lot under the watchful eye of the bike shop employee, but I can tell the smallest gear isn't easy enough for the hills I do. If the 2018 Roubaix had a triple, I probably would have bought it. I didn't try the Trek Domane, no dealer near me  has a Domane in stock to look at. 

I bike with a group most Saturdays or Sundays for 3 - 4 hours. Not at all hardcore, which is fine by me. 

 

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CXR94Di2 | 5 years ago
0 likes

Triples arent dead yet, with the versatility of Di2 they live on.  

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maviczap | 5 years ago
1 like

Too many riders are to vain to ride with a triple, they've not a man unless they're on a double.

Not my observation, I read in another thread. There's some truth to it.

This yearye rode with 33 chainring and 34 top sprocket in the Pyrenees on a compact, but I'm getting older, so I may go back to the triple I started with, when I first went to the Pyrenees in 2009. I certainly wasn't spinning up the climbs like I was in 2009.

I'm no athlete, but I'm not vain enough to worry about riding a triple, I certainly passed other macho riders on their doubles  1 I live in the flat lands, and no matter how much training I put in, the mountains will always be hard.

I've got a 48/32 Praxis chainring to use next time, and if I struggle on that, I've got a triple Ultegra shifter in the parts locker.

After that it's going to be an ebike, I don't want to stop cycling in the mountains, as I started doing this  too late in life

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patto583 | 5 years ago
1 like

"Within Shimano's current road line up triple chainsets are more common at Tiagra level and below."

Maybe that's because you only offer a triple in Tiagra and below, so that point becomes irrelevant as proof that people don't want it. If you said that there wasn't the call for it when you did still offer it on 105 then fair enough, but you are using your own product availability to justify future availability, which is a ludicrous position to take.

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landsurfer74 | 5 years ago
0 likes

Having recently completed my first LEJOG on an 11 - 32 cassette with a 26 single front chainring setup i dont get what double chainsets are for never mind triples ...

However;

If you want a quality triple set up go to SPA Cycles of Harrogate. 

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Mungecrundle | 5 years ago
0 likes

Last time I had a triple on a road bike was about 35 years ago. I think it was a red Rayleigh. Back then it probably had 5, possibly 6 speed.

I think the point raised in previous posts about modern 9 speed+ and the wider range with reasonable increments being the reason for a triple being effectively obsolete for more riders in more applications is the nub of the matter.

Round my way, N Herts, even the small ring is pretty much vestigial as there are few hills or sustained climbs.

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mattsccm | 5 years ago
4 likes

 Dead? Dormant at best but the reason is the manufacturers not making them.

Very first post.  "a compact chain-set is lighter, more efficient, easier to set up and maintain and should get you up most things with an appropriate cassette"

Either wrong or irrelevant.

Weight. Not an issue. For a start most riders could drop a few pounds. Much more effective than woorying about a few grams.  Fat gits who worry about their bike weights are daft or posers.

Efficient.Ho, ho ho. Think about the crappy chain lines and the horrible gappy gears.

Easy to set up? Its a front mech FFS! As easy as a knife and fork. (although modern youth can't do that either)

A front mech needs no maintainece to speak of. A cable is used on a triple so just where is the added difficulty?

Appropriate cassette? Oh a nice big rear sprocket. Well there is much of yoour lost weight back to start with and you still get the whopping great gaps.

Of course a triple is not for everyone but it's the only thing that works well in the right circumstance.  However as always the market is governed by the manufacturer (Fair enough, thats up to them), and the current trend for every newbie and fat knacker to think they are off to ride the Tour.

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Ad Hynkel | 5 years ago
1 like

Anyone who hauls any loads and wants to be able to push along at a reasonable speed unloaded will want a triple. That's a whole bunch of utility/touring bikes there. I wouldn't put a triple on my cyclocross/road/adv**ture (can't quite say it) bike but wouldn't have it any other way on my tourer/utility/commuter/everything-else-except-MTB bike. Sugino rule! 48-38-28 up front 11-30 out back works nicely for me. As age progresses will very likely drop some teeth on the inner ring for the bigger hills loaded up, but will try to avoid adding any at the back.

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Morat | 5 years ago
3 likes

Having failed to get up Hardnott Pass with 11-32 and a 50/34 compact I wish I had a triple. You don't look "pro" when you're pushing! indecision

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Fish_n_Chips | 5 years ago
0 likes

If I was touring or injured or a weaker hill climber then I’ll happily get a triple chain set as long as the front mech was smooth. 

 

Enjoyed 1x but too many large steps but great for CX and adventure gravel bikes.

The double compact on my road bike is great but  so was my 53-39 with 12-28.  

Struggled with 53/39 with 11-23!

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slitemere | 5 years ago
0 likes

For most of us fat middle aged riders a triple is still a good choice, the extra few hundred grams makes no reall difference in the real world compared to 2x.
My current favourite bike, and commuter is my 1972 Falcon with 3 x 9 speed set up. chainset is  50-40-30 stronglight and front mech is controlled by Deore friction shifter - I love it!

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ktache | 5 years ago
0 likes

A couple of years ago I gave up on the macho nonsense, because I had realised that when I actually needed the granny it would not shift as I had started to grind, and to get on the granny you need to be spinning, so now I try to shift much earlier, before I really need it.  Is the triple dead, not on my bikes.  Rohloffing the new one, or trying to, but I will be keeping the triples going.

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D-Squared | 5 years ago
2 likes

Shimano seem particularly mixed up here. They only offer triple on the low-end chainsets favoured by recreational riders, then they tout the benefits of steady cadence - I doubt the typical Tiagra rider cruising around level urban bike paths has any interest in efficient cadence.

Personally I still have a triple on my aging MTB but there’s so much overlap I mostly ride it as a double, riding the outer on the commute to the trails, then going straight from the outer to the inner when I hit the big climbs.

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exilegareth | 5 years ago
0 likes

Every year this story gets recycled, and every year the same arguments are trotted out, and no-one looks at it from the perspective of the manufacturer.

Manufacturers hate triples because they have more components than doubles, and doubles have more components than 1x. Telling you the thing with less components that is cheaper to make is high tech and the great new thing is manufacturer nirvana. Getting cyclists to agree with you and argue about why the expensive to make stuff is bad is just the most amazing marketing ever.

I have two triples - my tourer and a Ridley i got cheap in the sales because it was a Sora triple and they're just not cool any more. From the bottom of my heart I thank you all, because that was a bargain of the best kind...

I also have a road bike I use for TTs with a 53/39, and another road bike with a 50/34 that I use for the turbo and larking about. As my bikes get upgraded I suspect I'll be the guy lurking round the LBS looking to see what kit is unfashionable, and therefore cheap, but still perfectly serviceable....

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iandon | 5 years ago
1 like

I realy like triple chainsets and would miss the range of easy gears that kept my legs spinning when it all goes very steep. 

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bikefixer | 5 years ago
3 likes

Me: Older cyclist, semi-retired bike mechanic/retailer with 30 years experience.

Most of my bikes have doubles (52/42 or 52/39) which are fine for flats, rolling hills or bridges in my area. My "take it with me" bike is a triple. In my area, west central Florida, 34/50 gearing is not useful, especially in group rides. Often I see riders in the 34/12 or the 50/28 combinations. Usually I hear them first. I call them future customers. I recently replaced two 50t chainrings because of chain line wear. Would have done one more, but can't find a Shimano 6750 50t ring.

When I ride in very hilly areas I appreciate my triple. It allowes me to run a tighter cassette, 12/23, with closer gear ratios to more easily maintain my desired spin.

About 3 years ago six of my customers had their cranks changed to compact for a tough ride in Georgia (USA). The ones who did not change back to standard gearing all ended up replacing the 34t with a 38t ring.

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BehindTheBikesheds | 5 years ago
1 like

Ah yeah but, Road CC have already spunked themselves over the Rotor 13 speed 1x as the solution to all gear ratios. Frankliy it's yet more waffle, it's still aimed at pro racers and to get the lower ranges that mere mortals require means you have to go with a cassette that still has huge jumps between the ratios, this was one of the reasons why Aqua blue hated it (as well as the constant mechanicals they were having).

A 10-39 cassette with a 42T gives you a gain ratio of 8.87 - 2.27, a 50/34 with 11-32 gives you 9.6 - 2.24, so your top end is seriously restricted. Okay, you go to a bigger ring, a 46 for example, yup you made the top end similar and the bottom end 2.11 so slightly lower, but now you've got even bigger jumps between the ratios because you had to get the 10-46 cassette! Oh and you still need to buy new frame and wheels.

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CXR94Di2 | 5 years ago
0 likes

Triple crank are not dead, as long as Shimano keep making the XTR DI2 Triple front derailleur.  Goes off to buy a spare  1

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Yorkshire wallet | 5 years ago
4 likes

Don't really see how you're restricted by a 50t unless you're REALLY quite fast on the flats. 50x11 at 90rpm is 32mph!

Lets's be realistic, there's a lot of people cycling for whom 17mph avg over a couple of hours is a good ride. Not everyone is smashing out time trial speeds. 

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don simon fbpe | 5 years ago
1 like

Ride what you want.

I've ridden in a pretty mountainous region on a 53/39 and 28 at the rear without problems, except Bola del Mundo.

Mountain biked (XC) with a double and done the same routes on a 32/16 singlespeed.

I think there will always be a need for triples.

They're not for me, but hey!

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CXR94Di2 | 5 years ago
0 likes

I'm not arguing everyone has to get a triple crank, you can achieve similar ratios on the easy end of gearing with MTB crankset double.  Most folk don't need 48t or above chainring, a 46t/44t is more than adequate.  I do have a 48t but it's a little overkill.  I can push the speed over 50+ mph but that is with a very high cadence 140rpm.  Generally most folk are looking for easier gearing to make hills easier, but either through embarrassment, ignorance or bloody minded won't consider anything other than standard, mid or compact groupsets.  

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Dingaling | 5 years ago
0 likes

Some people seem not able to understand why others want a triple. Low gears to get up long climbs are readily available right up to the top groups. The problem is that the top groups do not offer this low gearing with some high gears. I don't care how many people tell me and everybody else that we don't need 48-52/11 I want those high gears to be there just for the few occasions when I can use them.

XTR has now reduced the big chainring to 38T which would give me 39kph at a 90 cadence (210cm wheel circ.). Totally inadequate. When I pass cars going down mountains I want to be able to pedal when I do it and not be at a cadence that has me coming off the saddle.

There are no big mountains where I live but there are a couple of longer descents where I can hit 75kph so I want to pedal towards that as long as I can. Simples.

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CXR94Di2 | 5 years ago
0 likes

XTR has now reduced the big chainring to 38T which would give me 39kph at a 90 cadence (210cm wheel circ.)​

Shimano spec the crankset max chainring @40T.  This is hugely under-rated.  I am using a 48T outer chainring down to a 26 inner ring and there is no rubbing on either ring.  I could probably got a 50 in if I had gone with 50/34 but I wanted the huge gearing range a triple offers.  

 

A 52*11 combo @ 90rpm gives 33mph.  I, when coming down a steep hill will invariably freewheel above 30mph, but to push 50+mph requires a huge amount of power and cadence 140rpm, which defeats the opportunity to recover.  Maybe in a race scenario its useful.

 

If your thing it to pedal like crazy downhill, so be ityes

 

 

 

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CXR94Di2 | 5 years ago
0 likes

XTR has now reduced the big chainring to 38T which would give me 39kph at a 90 cadence (210cm wheel circ.)​

Shimano spec the crankset max chainring @40T.  This is hugely under-rated.  I am using a 48T outer chainring down to a 26 inner ring and there is no rubbing on either ring.  I could probably got a 50 in if I had gone with 50/34 but I wanted the huge gearing range a triple offers.  

 

A 52*11 combo @ 90rpm gives 33mph.  I, when coming down a steep hill will invariably freewheel above 30mph, but to push 50+mph requires a huge amount of power and cadence 140rpm, which defeats the opportunity to recover.  Maybe in a race scenario its useful.

 

If your thing it to pedal like crazy downhill, so be ityes

 

 

 

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Dingaling | 5 years ago
0 likes

CXR94Di2,

I think I we pretty much agree. I may have just created the impression that I pedal to 50mph. I don't and can't. Around 45mph is my pedalling max. and I can't hold that for long, so it becomes a case of getting down low.

If I decide to get a new touring bike then I guess it will end up being with a 48 like your Tripster.

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paradyzer | 5 years ago
3 likes

'Death' - Really should be called forced extinction by companies that are trying to shape the market. I'm still running used components from 8+ years ago, so suck it, 'trendsetters'.

road.cc - if we started a drinking game of having a glass of wine every time this article is 'released' we would become serious alcoholics. Just a thought.  1

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NickJP | 5 years ago
1 like

Triple chainrings still needed for Tandems, which both go faster on the flat/downhill and slower uphill. We run 54/44/30 chainrings with 11-34 cassette on our tandem, and on a slight downhill we can easily wind out the 54-11, whereas at the other end of the scale we occasionally find a steep hill where the 30-34 is not really low enough.

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