In this article I will share my thoughts about the CEMA Bearing Ceramic Pulley Wheels Shimano 12-14T that I’ve installed on the Shimano Ultegra R8170 rear derailleur of the Canyon Ultimate CF SLX 8.0 Di2. These 12 speed Rear Derailleur Ceramic Pulley Wheels were discounted, so an easy replacement despite not having a full ceramic bearing.
Ceramic Bearing
C-Bear BB86/BB92 Ceramic Bottom Bracket PF41–AC for All Conditions
In this article I will look at the C-Bear BB86/BB92 Ceramic Bottom Bracket PF41-AC for all conditions. It is a press fit BB86/BB92 bottom bracket for Shimano GRX 820 Hollowtech II cranks on a Canyon Grizl CF SL8 1by gravel bike. Unfortunately the default Token Ninja BB4124PS bottom bracket started making funny noises.
Finally I will compare this PF41-AC all condition C-Bear Ceramic Bottom Bracket with the C-Bear Ceramic Bottom Bracket for BB86/BB92 PF41 with R (road) ceramic bearings, in the Canyon Ultimate CF SLX.