Shimano GRX Di2 RD-RX825 Rear Derailleur 2x12s indoor trainer

Shimano GRX Di2 RD-RX825 Rear Derailleur 2x12s indoor trainerSHIMANO's GRX 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 RX825 is compatible with 11 34T and 11 36T 12 speed cassettes and supports Full or Semi

Offered in a wide range of road gearing

Features: Ultralight Gravel Shoe: the RX801 SE is a breathable racing shoe for adventures on all terrain

A low-profile tapered tread pattern positioned at the mid-foot allows for an immediate connection and optimal mechanical interface with the pedal pins

Breathtaking vistas that stop you in your tracks

Bike Type: Urban Bike

Solid Mode Run Time: 3h30

Will not build up inside links and drivetrain

The eeBrake G4 is the fourth generation of the legendary eeBrake featuring 100% CNC machined parts

SILCA-Shield is our exclusive warranty coverage for Ultimate Level products and is THE most comprehensive warranty in all of cycling

efficient ride quality for everyday road riding

Soft rubber protects your bike’s finish

It has programmed chain guide trim settings and can be used in full or semi SHIMANO SYNCHRONIZED SHIFT modes