Shimano Shimano GRX RD-RX812 Rear Derailleur
Shimano GRX RD-RX812 Rear Derailleur
Regular price$120.96

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.

Average weight
267 g
B-Axle_Hollow axle _
Cable adjuster _
Compatible chain HG-EV 11-speed/HG-X11
Direct attachment (Conventional) _
Fluoric coated link bushings 4
Low sprocket_Max. 42T
Low sprocket_Min. 40T
Pulley_G pulley bearing _
Pulley_Sunken type pulley bolt _
Pulley_Teeth 11T
Pulley_T pulley bearing _
Rear speeds 11
Top-Normal Spring Type SHIMANO SHADOW RD+
Top sprocket_Max. 11T
Top sprocket_Min. 11T
Total capacity 31T

*Components are subject to change and may not be exactly as pictured.