Shimano GRX RD-RX812 Shadow+ 11 Speed Rear Derailleur - Rear Derailleur - 11 Speed - Black - Mid Cage - 42T Max Replace Images More positive pad engagement

More positive pad engagement

The Dert Under Bash Guard is a lightweight CNC alloy bash guard that delivers excellent chainring protection

Low sprocket: Max

increased air volume to add support throughout the travel and higher overall ride height for more confidence when things get steep

Can trim up to 30mm off each end to bring them down to 760mm if you'd prefer

Shimano GRX RD-RX812 Shadow+ 11 Speed Rear Derailleur - Rear Derailleur - 11 Speed - Black - Mid Cage - 42T Max Replace Images More positive pad engagementWith 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.