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CeramicSpeed OSPW Shimano GRX 2x11spd Black - Standard
CeramicSpeed OSPW Shimano GRX 2x11spd Red - Standard
Black - Standard
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CeramicSpeed OSPW Shimano GRX 2x11spd Black - Standard
CeramicSpeed OSPW Shimano GRX 2x11spd Red - Standard

OSPW Shimano GRX 2x11spd

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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
  • Speed: 11-speed
  • Discipline: gravel/cross

  • 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.

    Mfg Warranty: 48 Mo. Parts

    Warranty URL: https://www.ceramicspeed.com/en/cycling/support/warranty-program

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