FSA equipped riders have been winning Olympic medals, World Championships and Grand Tours with these state of the art, low-friction bearings. FSA bearings combine ceramic balls with super low friction seals, top-grade metals and special lubricant to create an optimized system. Ceramic bearings have a long service life and last 5-10 times longer than steel bearings. Choose from Shimano or Campagnolo
I installed them on my Shimano Dura Ace 10, and it works like a dream. Im buying a second set. Im not sure if there is a compatibility problem with the other individuals--mine work great!
I have 3 sets. Two on my road bikes and the other on my TT bike. They work very well. So well I am putting a set on my cross bike. I did experence noice but went away when I swiched from White Lighting to Finish Line Pro Road. Not a single shiffiting issue. All Campy
I cant understand the 3 previous 1 star posters... Just follow the instructions! Mines got around 1000+miles and no issues whatsoever!
Have about 200 miles on these pulleys, and so far theyve worked great. Combined with a ceramic BB, the cranks really do spin more freely. The shifting is as good or better than the stock pulleys. During installation, you do need good eyesight as the top/bottom labels are small, as are the labels on the four sets of bushings for different deraillers.
I love my new pulleys! I just installed them on a Dura Ace 10s and have not had any problems at all. FSA labels their pulleys top and bottom and I was wondering if they could be installed wrong. All I know is that mine are a big improvement, both in crisper shifting and less drag. I recomend them, and ceramic BB bearings too. You will notice a BIG difference with that upgrade.
If you mean the Shimanos, it isnt a surprise really. The Shimano upper pulley is different than the lower--in which the cog leading edges have a machined angle to lever the chain around smoothly. The lower pulley is "normal". I bet the FSA pulleys are good matches for the lower pulley, so they must not be right for the upper pulley. I assume FSA didnt actually inspect the Shimano pulleys carefully. I bet they wont fix this, because it would mean an expensive recall of every Shimano upper wheel out there. :-( I hope they prove me wrong.
I AM HAVING EXACTLY THE SAME PROBLEM ON MY CAMPAGNOLO DERAILER THE TOP PULLEY FLOATS AND MAKE LOTS OF NOISE, TOO EXPENSIVE FOR A LOUSY FIT.
The bottom pulley seems to work fine, but the top pulley does not float so that my shifting and drive train noise was problematic. I reinstalled the stock Shimano top pulley, and now all seems well again. Seems like alot of money for one working pulley. If the top pulley floated, the FSA pulleys would be a good upgrade; as they are now, I am not so sure I would recommend purchasing. I sent an email to FSA about the problem, but, to date, I have not received any response.