- Great value Altus rear derailleur offering crisp performance on- and off-road for 9-speed drivetrains
 - Wide link design increases rigidity and service life
 - 11-tooth pulleys for reduced pulley wear and chain noise
 - Advanced light action design with low friction fluorine coated link pivot bushings
 - Top-normal swing design
 - Total capacity 45T
 - Compatible with 9-speed Hyperglide sprockets
 
- Components
 - Gears & Drivetrain
 - rd-m370 altus rear derailleur, 9-speed, sgs, black