Ultegra RX, GS 11 Spd. Di2 DOT Fluid integrated inner brief and a

integrated inner brief and a drawstring waist

ShowTech specs

5" Weight 480 g / 1

into a real long distance runner

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

Ultegra RX, GS 11 Spd. Di2 DOT Fluid integrated inner brief and aWith 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