OSPW X Pulley Wheel System for Shimano GRX RX820 2x12-Speed auto rack The Grail CB7 proves that

The Grail CB7 proves that smoother is faster by combining lateral stiffness with the soft riding feel

New Era Premium Hat

62-66 degree chainstay angle

TSE attacks the four primary barriers to speed: Wind Resistance

and faster ride

OSPW X Pulley Wheel System for Shimano GRX RX820 2x12-Speed auto rack The Grail CB7 proves thatThis OSPW X system for Shimano GRX RX820 2x12 speed rear derailleurs 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 handbuilt OSPW System offers custom molded carbon fiber cage for lightweight and durability. CeramicSpeed OSPW Systems reduces friction 35 40% over stock pulley configuration. Robust cage