This is an updated version of the Oversized Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS. Mounting instructions for both this and the older version are to be found under our Support section.
This new design has an integrated stop tower
This 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 longe
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 lowe
The Oversized Pulley Wheel System for SRAM Red and Force AXS features a 15-tooth upper and 19-tooth lower pulley wheel setting, for maximum efficiency. The handbuilt OSPW System has two spring tension settings, that allows customised setup based on ri