CYCLAMI CYC-18T Hollow Rear Derailleur Pulley Wheel Ceramic Bearing Guide For MTB L-TWOO ERX/ER9/R9/R7 SRAM AXS RED Shim

Specifications TypeRear derailleur guide pulley Teeth18T eccentric hollow designMaterialCNC aluminum alloy wheel with ceramic bearingOuter diameter73 mmMounting hole5 mmWeight≈30 gSpeed compatibility9 10 11 speed Shimαno not for 11 speed long crank Model compatibilityL TWOO ERX ER9 R9 R7 Magene QEDSARM 11 12 speed requires 16 mm fixing screwUseRoad bike rear derailleur upgradeFeatures Ceramic bearing minimizes friction for smoother quieter shifting and better power transfer Oversized 18T pulley reduces chain articulation to boost drivetrain efficiency Hollow CNC machined alloy body keeps weight low while maintaining precise chain control Drop in install with two fixing screw lengths for wider fitment across cages Broad compatibility L TWOO ERX ER9 R9 R7 9 10 11 speed Shimαno except 11 speed long crank and selected Magene setups Package included 1 x 18T Hollow Guide Wheel