CeramicSpeed OSPW X Pulley Wheel System Shimano GRX/RX 2x11 - Coated Races Alloy Pulley Carbon Cage BLK Weight-336 Twin Chuck head threads on

Twin Chuck head threads on to Presta and Schrader valves

For the adventure

Designed with a Shimano Micro Spline body that features smaller and more widely distributed splines to limit cog damage on freehub

Matte finish has the look of alloy but won’t dent or bend and has a more durable finish

both included

CeramicSpeed OSPW X Pulley Wheel System Shimano GRX/RX 2x11 - Coated Races Alloy Pulley Carbon Cage BLK Weight-336 Twin Chuck head threads onThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Features 13 tooth upper and 19 tooth lower Cerakote coated aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Coated bearing races increase bearing service life by increasing