The RD-RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max.
BENEFIT
Silent and uninterrupted rear shifting on rough terrain
FEATURE
Adjustable chain stabilizer prevents chain slapping and drops
TECHNOLOGY
SHIMANO SHADOW RD+
BENEFIT
Smooth and reliable mixed surface shifting
FEATURE
Switch stabilizer ON/OFF to match the terrain
FEATURE
Gravel-tuned clutch tension
BENEFIT
Compatible with current road DUAL CONTROL LEVER
BENEFIT
Top sprocket: Max. 11T/Min. 11T
BENEFIT
Low sprocket: Max. 42T/Min. 40T
BENEFIT
Total capacity: 31T