The DEORE 12-speed rear derailleur guarantees fast, precise shifting across the entire range from 10 to 51 teeth. The 13-tooth guide and tension rollers and SHIMANO SHADOW RD+ technology reduce vibration and improve chain retention on sprockets and chainrings by increasing chain tension and reducing rear derailleur cage movement. - Mounting type: frame mount - Recommended chain: HG 12-speed - Number of speeds: 12 speeds - Range of use: MTB rear derailleur clevis - Type: long Rear derailleur capacity - Max. speed largest sprocket: 51 teeth - Total capacity: 41 teeth - Min. smallest sprocket: 10 teeth.
