Oversized Derailleur pulleys for Campagnolo 12 speed - Full Ceramic - 12/12T Color:Black we recommend to use the

we recommend to use the cross bearings on road bikes if you value a set-and-forget over shaving the last few milliwatts

or choose cross seals if you frequently tackle gravel

This bottom bracket fits a Sram DUB crank set on an Italian threaded frame

Shimano 11 speed Road and MTB

cross bearings for off road use or if you frequently ride on wet roads

Oversized Derailleur pulleys for Campagnolo 12 speed - Full Ceramic - 12/12T Color:Black we recommend to use theThese pulleys will just not stop spinning! Running on our full ceramic bearings without any lubrication, these wheels are guaranteed to spin at least 15 seconds. This was the time limit set for Instagram videos when we released our first set of full ceramic pulleys in 2015. This set will compliment your Shimano 11 speed and Campagnolo 12 speed derailleurs. They also work well for Sram Etap 11 and 12 speed, just select your favorite from the dropdown