Ospw Kactus Ceramic 17Tr Pulley Wheel System For Shimano R9000 R6800 - Hitam

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17TR large size guide wheel set system
17T pulleys or 16T pulleys
Saves 60% chain friction resistance compared to 11T guide wheels”
Ceramic bearing version saves more than 2.4 watts of average power compared to the original shifting system
Full carbon fiber cage
Full 7075 aluminum alloy CNC cutting lightweight guide wheel and shaft pin
*Ceramic Bearing Version Stainless Steel Hybrid Bearing Version Steel Bearing Version
*Weight: 61.4g
*he ceramic Bearing version is 1.2 grams lighter than the steel Bearing version
*Shifting speed increased by 20%-26% for Shimano systems.
*Support up to 11-28 cassettes, compatible with 11-30 and 11-34 with the help of an RD extender.
This is the fastest RD pulley system.
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