Shimano GRX RD-RX817 Di2 1x11 Speed Derailleur 23archive the Ultra-Lock 4

the Ultra-Lock 4

Weight: Regular: 2 lb 14oz / Long: 3 lb 5oz

Bringing back their esteemed Superguide line to roaring applause on both sides of the “pond”

thermoformable

900-fill Nikwax Hydrophobic Down™

Shimano GRX RD-RX817 Di2 1x11 Speed Derailleur 23archive the Ultra-Lock 4The Shimano GRX RD RX817 Di2 1x11 Speed Derailleur is the newest addition to Shimano's gravel specific lineup. The Shimano GRX RD RX817 Di2 1x11 Speed Derailleur is compatible with GRX 1x drivetrain systems. CAGE LENGTH N A TOTAL CAPACITY 31T COLOR SERIES COLOR AVERAGE WEIGHT 318g MOUNT Direct attachment (conventional) Direct mount compatible NUMBER OF PULLEY TEETH 11 SERIES GRX GENERATION RX800 MAX LOW SPROCKET 42 MIN LOW SPROCKET 40 REAR SPEEDS 11