Shimano Dura-Ace 9100 disc brakes: "The next step in braking"

I noticed on the Dunwich Dynamo how loud disc brake squeal is at night in sleeping villages. Something to think about although at least pedestrians might hear you coming for once ;-))

In F1 cars they utilise Carbon Ceramic disc brakes - whien is this technology likely to be incorporated onto bicycles?  OK I apreciate that it will probably be very costly - but lets face it - so are a lot of other components for top of the range bicycles.

What's the obsession with disc brakes on road bikes????

They don't belong - it's like brioche buns with burgers! Who thought that was a good idea?

Behave!

After a year on disc brakes I would find it difficult to go back to rim brakes on a road bike. They are just so much better.

@Initialised ... swapped to the j02a (resin ones) and the howling is GREATLY reduced - thank

god

Dura discs look lovely but more importantly Shimano need to tell us what time of day they found Stelvo that quiet....

@mylesrants

heavier bikes go faster downhill. the added weight at low center of gravity makes them more stable. a lighter bike to descend is always slower. of course, disc will make that difference even bigger due to better modulation.

@Initialised

Indeed its something the bike industry didnt really address well IMO. on mtbs you get mud and stuff and this clears off the disc easily and they rarely squeal even in harsh conditions. Plus wider tires ensure most of the debris and mud do not even touch the disc brake.

Now on a road bike, narrow tire, oily  greasy and sandy road.. all this is directly projected on the rotors (unless you're always riding at 40+kph these stay on and eventually even the nicest rotors squeal (until the rain stops). cleaning em and re-prepring them (as if they were new) helps delaying when that occurs, but its a lot of work for little benefit. I'm not sure how to address it though since even fenders dont help that much around the center of the wheel (if you wonder, thats why hubs are dirtier faster on road bikes than mtbs)

I just wish I could get my RT99's to stop sounding like a freight train every time they get a little damp. I think this is the real reason they're not used in the Grand Tours just yet. I can't see how flat mount sloves this problem.

I got a disc touring bike this year and it is  fantastic. The disc adds so much appeal as it is my first choice bike on most days. I walk past faster , lighter  bikes for the security and control of discs. they are the future.

Knock knock...

**Door opens**

"Hi my name's Twowheelsaregreat and I want to be your test rider."

I mean how do you manage to get a job like that... seriously

Quote:

Karsten Kroon, Shimano test rider.

I'd like to think that Shimano has a whole cadre of test riders, hanging around in a desert somewhere, with some pushing back the outside of the envelope to prove they've got enough of the right stuff to ride Dura-Ace and XTR, while others - the miserable pudknockers - glumly test Claris and Acera parts.

Cool vid and he didn't even moan about the aero penalty of discs once! Who'da thunk it  ?