OSPW X System for Shimano GRX/RX 2x11 Options:OSPW X Pulley Wheel System for Shimano GRX/RX 2x11 - Coated Races, Alloy Pulley, Carbon Cage, White Cerakote level 2 padding and multiple

level 2 padding and multiple width options provide optimal comfort and support for long distance rides in an aerodynamic position

Torx T25 (extended 50mm length)

T25 & T10 torx tools

while maintaining enhanced cornering traction and braking effectiveness

OSPW X System for Shimano GRX/RX 2x11 Options:OSPW X Pulley Wheel System for Shimano GRX/RX 2x11 - Coated Races, Alloy Pulley, Carbon Cage, White Cerakote level 2 padding and multipleThe 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, Cerakote coated 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