Turbocharge Your GRX Drivetrain With CeramicSpeed's Secret Weapon
It is well known that CeramicSpeed's aftermarket pulleywheel upgrades reduce drivetrain friction by 35-40%.
This GRX 2x-specific 13-tooth upper and 19-tooth lower CeramicSpeed OSPW (oversized pulley wheel) System has been podium proven at races like Paris Robaix, Strada Bianche and CX World Cups.
The upgrade system is built for gravel and cross disciplines and meets the rigorous durability and efficiency standards of world tour riders and demanding racers like you.
The four spring tension settings allow customized setup based on riding conditions, and the handbuilt OSPW System offers custom molded carbon fiber cage for weight savings and durability.
Pulley Wheels: CeramicSpeed 13-tooth upper and 19-tooth lower
Pulley Wheel Material: aluminium
Cage Material: Carbon reinforced PA
Available in red or black color options
CeramicSpeed grease/oil: CeramicSpeed pulley oil
Compatibility: Shimano GRX 810 & GRX 815, Shimano Ultegra RX 800 & Ultegra RX 805
Only compatible with 2X systems. Not compatible with 42-tooth cassettes.
Cassette compatibility: up to a 11-36 range
Spring tension settings: 4 spring tension settings
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.