Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed Long Cage With Clutch For 2x BLK air tool sport steel Color Black Flange Diameter Left

Color Black Flange Diameter Left 60 Flange Diameter Right 50 Center to Flange Left 27 Bearing Type Sealed Cartridge Weight 160 Center to Flange Right 39 Spoke Interface J-Bend Defined Color Black Hub Drilling 32 Front Axle 15mm Thru x 110mm Hub/Brake Compatibility 6-Bolt Disc

30% lighter than conventional freecoaster hubs

Color Black Ring Position/Type Single Tooth Count 51 Drivetrain Speeds Single Speed 1/2" x 1/8" Chainring BCD 144 Material Aluminum Defined Color Black

Rotor Size (mm) 180 Pad Compatibility All Pad Compounds Rotor Type One Piece Weight 146 Hub/Disc Compatibility 6-Bolt

Designed so that entire fork dissipates loads reducing stress on the crown

Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed Long Cage With Clutch For 2x BLK air tool sport steel Color Black Flange Diameter LeftShimano GRX RD RX825 Di2 Rear Derailleur 12 Speed Long Cage With Clutch For 2x Black. Shimanos GRX RX825 Di2 12 speed rear derailleur features a built in wireless connectivity unit and charging port ensuring fast and reliable shifting for mixed terrain riding and easy recharging. Integrated Shadow RD+ technology prevents chain slap and ensures precise shifting even on rough terrain. Thanks to built in ON OFF switch wheel removal is easy too. The RD