CeramicSpeed Oversized Pulley Wheel System (Black) (Shimano GRX/Ultegra RX) (Coated Ceramic Bearings)

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Price: $699.00

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CeramicSpeed Oversized Pulley Wheel System Description:

The 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, 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 hardness of race and reducing corrosion
  • Compatible with Shimano GRX 810 & GRX 815, Shimano Ultegra RX 800 & Ultegra RX 805
  • Cassette compatibility up to 11-36
  • Four spring tension settings allow customized setup based on ride conditions


  • Compatibility: Shimano GRX 810, GRX 815, Ultegra RX 800, Ultegra RX 805
  • Speeds: 11 Speed
  • Max Cog: 36T
  • Color: Black

This product was added to our catalog on October 6, 2022