Shimano Ultegra RD-RX800-GS Rear Derailleur - 11 Speed Medium Cage BLK With Clutch DH } The choice of the

} The choice of the pro peloton

}Industry Nine Hydra 2 Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Silver 28H

Valve Hybrid Valve Length 65mm

1 1mm spacer

Shimano Ultegra RD-RX800-GS Rear Derailleur - 11 Speed Medium Cage BLK With Clutch DH } The choice of theShimano Ultegra RD RX800 GS Rear Derailleur 11 Speed Medium Cage Black With Clutch. The Ultegra RX Rear Derailleur brings Shimanos chain stabilizing technology road cycling drivetrains delivering smooth and precise shifting over technical terrain. It expands road bike capabilities inspiring confidence on any surface and drives the evolution of road cycling to include greater elements of adventure. The Ultegra RX Rear Derailleur is available in 11