Ultegra RX, GS 11 Spd. Di2 DOT Fluid into a real long distance

into a real long distance runner

BB Shell Width: 73mm

With return spring

The RD-RX810 rear derailleur is compatible with road cassettes with a 34T low sprocket max

While this bag does not have any internal accessory pockets in the main compartments

Ultegra RX, GS 11 Spd. Di2 DOT Fluid into a real long distanceWith an integrated chain stabilizer mechanism, the ULTEGRA RX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain tensioner. The RD RX805 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. CAGE LENGTH: GS Medium TOTAL CAPACITY: 39T MAX FRONT DIFFERENCE: 16 AVERAGE WEIGHT: 280g