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C-Bear ceramic OCM  same cage optimized max size ceramic pulley wheels. Some labelled this Oversize #tellasitis.

Shimano: (ocm-shi)
R8150 Ultegra 12 speed

GRX 
Dura Ace R9100,R9150 Di2
UItegra R8000, R8050 Di2
105 R7000
105 R7150 12 speed

R9250 Dura Ace 12 speed (ocm-shi-da12)

Sram:
AXS 12Speed
Red, Force, Rival inclusief XPLR
 

Sram Red etap 11 speed

Campagnolo Ekar 13 speed


video on XTR https://www.instagram.com/p/B555C9Sl8kN/
video on Dura Ace https://www.instagram.com/p/B6JSduklTHi/
video on GRX https://www.instagram.com/p/B6k1RmllQ0L/
video on SRAM Force https://www.instagram.com/p/B6pfiPwlRof/

C-Bear ceramic OCM (original cage max) pulley wheels

Instagram @cbearcycling

Reviews

Marathonmtb (davysprocketmtb)
C-bear DUB 41 marathonmtb davysprocketmtb Pressift 89.5/92
Gravel Cyclist Belgian Tough
Gravel Cyclist review of C-bear : Belgium Tough ceramic bottom bracket
Bike Rumor
C-bear PF42-30 ceramic bottom bracket on Bike Radar review
Cyclingweekly Hillclimb
C-Bear PF30 Cycling Weekly Hill Climb Cannondale
Cyclingtips Everett Top 10
Global Cycling Network
C-Bear PF41-30 Global Cycling Network