Shimano GRX812 Rear Deraileur MAX 42T 11s

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.