Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed Long Cage With Clutch For 2x BLK air tool sport steel Three-way pocket Ratchet with Extension

Three-way pocket Ratchet with Extension and T-Handle function all in a compact lightweight design to carry on your bike

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

}CeramicSpeed ITA Road Bottom Bracket - Italian Thread 70mm 24mm Spindle Coated Races Black

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

Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed Long Cage With Clutch For 2x BLK air tool sport steel Three-way pocket Ratchet with ExtensionShimano 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