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The OSPW X System reduces friction 35-40% over stock pulley configuration. The lightweight custom molded carbon fiber cage ensures durability. This design allows the use of the same length chain as stock pulleys. The 14-tooth upper and 18-tooth lower pulley profiles ensure stable chain retention wit..

Unique narrow wide tooth profile ensures durable chain retentionCustom designed, carbon fiber pulley cage assembly for durability and light weightCompact cage design allows the use of the same length chain as stock pulleysOversized 14 tooth upper, 18 tooth lower pulleys reduce chain dragThree spring..

Unique narrow wide tooth profile ensures durable chain retentionCustom designed, carbon fiber pulley cage assembly for durability and light weightCompact cage design allows the use of the same length chain as stock pulleysOversized 14 tooth upper, 18 tooth lower pulleys reduce chain dragThree spring..

OSPW X for Shimano GRX810/815 + RX800/805 Cerakote Limited EditionThis 13-tooth upper and 19-tooth lower OSPW System has been platform proven at races like Paris Robaix, Strada Bianche and CX World Cups.The system is built for gravel and cross disciplines and meets the needs for durability, low fric..

OSPW X for Shimano GRX/RX 2x11This 13-tooth lower and 19-tooth upper OSPW System has been platform proven at races like Paris Robaix, Strada Bianche and CX World Cups. The system is built for gravel and cross disciplines and meets the needs for durability, low friction and longevity. The four spring..

OSPW X for Shimano XT/XTR 1x12The OSPW X System reduces friction 35-40% over stock pulley configuration. The lightweight custom molded carbon fiber cage ensures durability. This design allows the use of the same length chain as stock pulleys. The 14-tooth upper and 18-tooth lower pulley profiles ens..

Unique narrow-wide tooth profile ensures durable chain retentionCustom designed, carbon fiber pulley cage assembly for durability and light weightCompact cage design allows the use of the same length chain as stock pulleysTwo spring tension settings to customize performance and reduce chain dragUp t..

OSPW X for SRAM Eagle AXSThe OSPW X for SRAM Eagle AXS features a narrow wide tooth profile to ensure durable chain retention. The 14 tooth upper and 18 tooth lower pulleys reduces chain drag while the custom designed carbon fiber pulley cage ensures both durability and light weight. The SRAM Eagle ..

OSPW X for SRAM Eagle Mechanicalhe OSPW X for SRAM Eagle Mechanical features a narrow wide tooth profile to ensure durable chain retention. The 14 tooth upper and 18 tooth lower pulleys reduces chain drag while the custom designed carbon fiber pulley cage ensures both durability and light weight. Th..

Riders with the new PF4130 design can use this kit to service their bottom bracket. It is important to note that the inner race must be recessed roughly 2.8mm to provide clearance for the dust cover. This is the key change on the new PF4130 that began shipping in 2018. If the inner race (and seal) i..

OSPW cage for Campagnolo 12s EPS - incl. bolts...