CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Coated Races Aluminum Pulley Carbon Cage BLK MFPN=BX-BL130DIPR-BK Handlebar Width 420mm Primary Color

Handlebar Width 420mm Primary Color Black Drop 127mm Clip-On Bar Comp

Plastic hub guard included (but optional to use) Rear Axle 14mm Threaded x 110mm Rim Width (Internal) 32 Cassette Body Type Single Cog Driver Valve Schrader Color Hard Black Wheel Size 20" Defined Color Black ISO Diameter 406 / 20" BMX Tire Type Clincher Hub/Brake Compatibility Rim Brake Handlebar Direction LHD

This incredible tool reconditions scrapers to a near-perfect edge in seconds

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When paired with Rally 110 the upgrade spindle turns your system into a Rally 210 power meter providing left/right balance data and cycling dynamics

CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Coated Races Aluminum Pulley Carbon Cage BLK MFPN=BX-BL130DIPR-BK Handlebar Width 420mm Primary ColorThis OSPW X system for Shimano GRX RX820 2x12 speed rear derailleurs is built for gravel and cross disciplines and meets the needs for durability low friction and longevity. The four spring tension settings allow customised setup based on ride conditions and the handbuilt OSPW System offers custom molded carbon fiber cage for lightweight and durability. CeramicSpeed OSPW Systems reduces friction 35 40% over stock pulley configuration. Largest Cog 36