Shimano Altus M370 9-Speed Rear Derailleur | SGS Long Cage | Black. Series: Shimano Altus. ⭐Why Choose the Altus M370?. Shimano 9-speed shifters (Altus, Acera, Alivio, Deore). Optimised for performance, value, and reliability — the Shimano Altus M370 is a trusted favourite for 9-speed riders.
