Ultegra RX, GS 11 Spd. Di2 GRX Elastic hem helps keep jersey

Elastic hem helps keep jersey in place in the riding position

Power Glide technologyHeat treated steelWeight: 229g for 11-26TCompatibility: PC-1170

It attaches to the saddle easily via hook-and-loop straps

the ISOMETRICTM design increases the sweet spot by 7%*

Ultegra RX, GS 11 Spd. Di2 GRX Elastic hem helps keep jerseyWith 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