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Shimano RD-RX800 Ultegra RX rear derailleur Shadow+ GS Medium Cage

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With the diversification of road cycling and the growth of gravel and multi-surface riding, Shimano introduces Ultegra RX, rear derailleurs with chain stabilizing technology

Riders continue pushing road bike capabilities, evolving the sport from racing to encompass greater elements of adventure and including a broader range of riding styles. In a natural evolution, RX800 expands the potential of Ultegra R8000 combining chain stabilizing features with the same performance characteristics of Shimano’s most versatile performance road drivetrain.

will accommodate an 11-28T cassette up to Shimano’s wide range 11-34 cassette