CeramicSpeed OSPWX System Shimano GRX/Ultegra X 2x Pulley Wheels

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 longevity.

The four spring tension settings allow customised setup based on ride conditions, and the hand-built OSPW System offers custom molded carbon fiber cage for lightweight and durability.

CeramicSpeed OSPW Systems reduces friction 35-40% over stock pulley configuration.

Only compatible with 2X systems. Not compatible with 42-tooth cassettes.

In the box:

• Complete OSPW System for Shimano GRX/RX 2x11
• CeramicSpeed Pulley Oil
• Sticker Sheet