Shimano Ultegra RX 800 Rear Derailleur Wheel Tubes & Tires • Cam-actuated micro-adjustable clamp fits

• Cam-actuated micro-adjustable clamp fits 7/8" to 3" (22 mm–76 mm) diameter tubes and seat posts of any shape and material

Your overall safety and visibility should not be limited by your budget

Tuned compliance

The Advanced Forged Composite rocker arm has a flip chip that allows you to adjust frame geometry

Shimano Ultegra RX 800 Rear Derailleur Wheel Tubes & Tires • Cam-actuated micro-adjustable clamp fitsWith the diversification of road cycling and the growth of gravel and multi surface riding, Shimano introduces Ultegra RX, rear clutch derailleurs that further the versatility of the Ultegra R8000 drivetrain Chain Stabilizer mechanism adopted from mountain bike design adapted and tuned for road drivetrains and riding conditions ON OFF switch Precise accurate shifting Compatible with current road DUAL CONTROL LEVER Shimano Shadow RD Plus technology