CeramicSpeed OSPW - Coated - SRAM Red/Force AXS Socks and 175 mm lengths

and 175 mm lengths

Shimano's GRX RX825 Di2 12-speed rear derailleur features a built-in wireless connectivity unit and charging port

It also fits under the saddle nicely when cinched tight

hardened steel X-Dome architecture for gears 1-9 and an ultra-lightweight

Prevention of overload and injury

CeramicSpeed OSPW - Coated - SRAM Red/Force AXS Socks and 175 mm lengthsThe 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 a 15 tooth upper and 19 tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls to provide absolute optimization of the rear derailleur Robust cage crafted from carbon reinforced polyamide for durability and light weight Two spring tension