Carbon Fiber Road bikeceramics bearing Guide wheel Rear Oversized Pulley Wheel System for Shimano 9100/9150&8000/8050 SS

SRAM SERIES:OSPW Oversized ceramics Pulley Wheel System for SRAM Red/ Force AXS (Non Coated) Bla78g Derailleur PulleyPulley Wheels: Ceramic 15-tooth upper and 19-tooth lowerPulley Wheel Material: AluminiumBearing Options: Ceramic BearingCompatibility:SRAM Red AXS and SRAM Force AXS. 2020 SRAM Red eTap 11 speed derailleur with the orbit clutch. This system is also compatible with the wider range Force AXS medium cage derailleur. This system is not compatible with SRAM Rival AXS.Caette Compatibility: Fits 12 speed 10 to 36-tooth caettes. For use with the 11 speed clutched derailleur fits 11-32 caettes.Spring Tension Settings: 2 springSpeed: 12 speedDiscipline: Road and Gravel/CroSHIMANO R8000/R9100 R9150 SERIES:OSPW System for Shimano 9100/9150 and 8000 SS/8050 SSThe overall power savings of the OSPW System for Shimano 9100/9150 /8000 reach 30%-60%, or more in some cases, over a stosetup.The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market.The Shimano 9100/9150 and 8000 SS/8050 SS OSPW system is compatible up to a 32 tooth caette for both Dura Ace & Ultegra derailluers.Please note: The OSPW System for 9100/9150 and 8000 SS/8050 SS is NOT compatible with Ultegra 8000-GS or 8050-GS (medium cage) derailleurs, nor with the clutch equipped Ultegra RD RX800 & RX805.Pulley Wheels: Ceramic 13-tooth upper and 19-tooth lowerPulley Wheel Material: AluminiumBearing Options: Ceramic BearingCaette Compatibility: Fits 12 speed 10 to 36-tooth caettes. For use with the 11 speed clutched derailleur fits 11-32 caettes.Spring Tension Settings: 2 springSpeed: 12 speedDiscipline: Road and Gravel/Cro