Shimano Altus™ RD-M370 Rear Derailleur

Description

Precise Tracking. Smooth Velocity.

When navigating changing elevation profiles and mixed backcountry terrain, smooth drivetrain mechanics keep your forward momentum completely continuous. The Shimano Altus RD-M370 is engineered to bring professional light-action shifting geometry into highly accessible 9-speed configurations.

Utilizing Shimano’s advanced Double Servo-Panta technology, the derailleur’s guide pulley follows a precise, optimized path relative to your cassette teeth rather than moving linearly. This keeps the distance between the pulley and your gears perfectly uniform across the entire block, accelerating shift response and wiping out indexing drag. The overbuilt Wide Link structure widens the spacing between the chassis pivots, substantially increasing structural stiffness to fight twisting forces under immediate chain loads.

Technical Highlights

• Double Servo-Panta Layout: Keeps the upper jockey wheel in a constant, proximity-locked alignment with every cog for smoother, lightning-fast chain tracking.

• Wide Link Parallelogram: High-tensile alloy linkages optimize structural torque resistance, preserving precise derailleur alignment and extending service life.

• Noise-Reduction 11T Pulleys: Oversized 11-tooth tension and guide pulleys reduce internal friction and chain chatter, creating a ultra-quiet, efficient pedaling environment.

Specifications