Shimano GRX Rear Deraileur RD-RX812 for 1x11 Speed Prime DIMENSIONS 275 mm x 132

DIMENSIONS 275 mm x 132 mm

Shimano® Ultegra® FC-8000

Stem Clamp: 6Nm Max

The M-Caddy is a medium

And improve significantly the stiffness

Shimano GRX Rear Deraileur RD-RX812 for 1x11 Speed Prime DIMENSIONS 275 mm x 132RD RX812 SHIMANO GRX Rear Derailleur SHIMANO SHADOW RD+ 42T max low sprocket 11 speed. With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain tensioner. The RD RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max. Silent and