shimano GRX RD-RX812 Rear Derailleur

Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. This rear derailleur is designed for fast and precise shifting performance. The Shadow Plus ...Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world.

This rear derailleur is designed for fast and precise shifting performance. The Shadow Plus design uses a chain stabilising switch that reduces chain bounce in rough terrain, maintaining a more stable drive and shifting. The high tolerance cold forged aluminium link plates and body construction make it extremely light and durable.

It is compatible with 11-speed HG chains and features a wide gear ratio up to 11-42T. Suitable for use with single chainsets, this derailleur weighs 267g.