Shimano Altus M370 9speed Rear Derailleur

The Shimano Altus M370 rear derailleur delivers dependable, smooth shifting for
9-speed drivetrains, making it a great-value choice for both on-road and
off-road riding. Built with a wide link design for added rigidity and durability,
it offers consistent performance mile after mile.

Featuring Shimano’s advanced light action design, low-friction fluorine-coated
pivot bushings and 11-tooth pulleys, the Altus M370 reduces chain noise while
maintaining crisp gear changes across a wide gear range.

Key Features

- Compatible with 9-speed Hyperglide drivetrains
- Wide link design improves rigidity and service life
- 11-tooth pulleys reduce pulley wear and chain noise
- Advanced light action design for smooth, low-friction shifting
- Fluorine-coated link pivot bushings
- Top-normal (high-normal) swing design

Specifications

| Specification        | Detail                    |
|--------------------|---------------------|
| Speeds                 | 9-speed                |
| Total Capacity      | 45T                        |
| Pulley Size           | 11T                        |
| Compatibility      | Shimano 9-speed Hyperglide |
| Cage Design       | Wide link               |
| Spring Type        | Top-normal            |

Dispatch times may vary. Our stock levels are live and most orders placed before 2pm are shipped same-day (Monday to Friday). Estimated dispatch times are shown alongside stock levels for reference.

Please note that delivery times are estimated from the point of dispatch, not when your order is placed.

UK

• Standard UK shipping is FREE on all orders over £20.
• Express shipping options are available at checkout.

EUROPE

• Europe standard shipping is £3.99 with an Express option available.
• We have had to disable shipping to the EU. We hope to be able to resume shipping to more EU destinations shortly.

REST OF THE WORLD

• We have had to suspend shipping outside of the UK. We hope to be able to resume shipping worldwide shortly.

We offer a no-quibble 30-days refund policy*. There's no need to contact us before returning your item(s). Simply send it back to the following address:

Sprocket and Gear (Returns), Kingfisher Works, Tag Lane, Hare Hatch, RG10 9SH, United Kingdom

Be sure to include your order number and reason for return. Sorry, but we can't cover, or contribute to, the cost of the return.

* To read our full returns/refund policy please click here.