CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Coated Races Aluminum Pulley Carbon Cage BLK

We’re a mission-driven bike shop based in Colorado. Every sale helps refurbish and donate bikes to those in need through Bicycles for Humanity Colorado.

Each item has been professionally inspected, thoroughly cleaned, carefully refurbished, and is ready for immediate use.

CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Coated Races Aluminum Pulley Carbon Cage BLK

On demanding gravel routes, reliability matters as much as speed. The handbuilt CeramicSpeed OSPW X Pulley Wheel System for Shimano GRX RX820 2x12 features a custom molded carbon fiber cage for lightweight durability and coated aluminum pulleys. By reducing friction 35-40% over stock pulley configuration, it translates into smoother shifts and less crank resistance when the terrain gets rough.

Who is this for?

Gravel and cross-discipline riders who demand consistent, smooth shifting, durability in gritty conditions, and maximum drivetrain efficiency on long rides or races.

Each item is professionally packed and shipped next day. Select in-store pick-up at checkout and visit us if you are local!