Shimano Ultegra 6800 Brake Calipers $174.95
New meaning to dual pivot.
Shimano's stoppers have always proven to be some of the smoothest and most powerful in the business, and the new Ultegra 6800 Brake Calipers continue to represent these qualities in full effect. The new brakes were completely redesigned, borrowing the same new pivoting mechanism as Dura-Ace 9000 to provide you with incredibly consistent power distribution at the rim surface.
As with the conception of Dura-Ace BR-9000 Brake Calipers, Shimano started from the ground up when designing its new Ultegra 6800 brakes. Shimano used its new 'true' dual-pivot design, which deviates from the Shimano legacy of the mounting bolt doubling as a second pivot. Instead, 6800 has a rear-mounting plate with a center bolt for frame attachment. The brake arms now reside symmetrically over the wheel, and work independent of the mounting plate because of an integrated rolling cam. Shimano kept the cable stop off to the side, but with the new dual-pivot design, any cable pull applies an equal tension to both arms. Taking a step even further, the arms operate on a twin bearing system that drastically reduces pivot friction, and thus makes brake application from the levers a light, predictable, and powerful experience. In fact, Shimano makes the claim that BR-6800 has 10% more power in the caliper than their 6700 counterparts.
The arm placement is now closer to the rim, which, when coupled with an equal pull on each side of the rim, drastically increases modulation. Actuation from the levers is lighter than ever, and with Shimano's new low-friction, polymer-coated cables, you can expect a braking experience unlike anything Shimano has offered before. And for all of you running larger tires, Shimano will also be producing a thinner brake pad option to accommodate up to 28mm tires.
Lighter operation, smoother modulation, and an aesthetic design that's unmistakably Shimano, the BR-6800 is as good as it gets. The Shimano Ultegra 6800 Brake Calipers are available in one size and one color. The calipers are only available as a pair and are recommended for use with the Shimano ST-6800 STI Levers.
What community has to say
- Familiarity: I've used it once or twice and have initial impressions
These newer ultegra brakes are ridiculously powerful if they have a good braking surface, say, a good pair of mavics or shimanos etc. Id go as far as to say I was actually a bit surprised how well they work. I would recommend getting used to the way they respond before you go bombing down a big ol' hill at a blistering speed. You cant go wrong with shimano quality and these will definitely not disappoint.
Do I need specific cables with the 6800...
Do I need specific cables with the 6800 calipers?
I have just fitted the calipers to my current cables but I,m unable fit the cables into the caliper recess unless I remove the end ferrels?
What is the maximum tire size for those,...
What is the maximum tire size for those, could 700x25c fit in?
Yes..............even if sometimes it is a bit tight just release a small amount of air. Just that simple.
Are these compatible with the...
Are these compatible with the Shimano ST-5700 brake levers?