Shimano ALTUS M310 7/8 Speed Rear DerailleurShimano Altus 1PCS Groupset M310 Shifter Front Rear Derailleur 3x8 Speed MTB The Shimano Altus rear derailleur features an advanced light action, long cage design with Teflon coated bushings. What sets the Shimano Altus derailleur apart from other rear derailleurs is its unique 13 tooth upper and 15 tooth lower pulleys that provide a 43 teeth chain wrap capacity (more than conventional 11 tooth pulleys) and enable them to rotate with less friction.

Type: Threaded/HOLLOWTECH II /68/73 mm shell width

smoother shifts

Average weight       : 610g /pair

MODEL NO CS-M5100-11 SERIES DEORE M5100 Series Combination 11-13-15-17-19-21-24-28-32-37-42T | 11-13-15-18-21-24-28-33-39-45-51T Combination name (Group name) 11-42T 11-51T

Colour: black

Type: Square taper

Shimano Deore 11 Speed RD M5100 Rear Derailleur

Model: CN-M7100

smooth and quiet drivetrain

Series: Acera M360

Mount type Clamp band                        : Yes

8 mm chainline