Shimano

<p>Use this direct attachment rear derailleur on hybrid bikes and urban rides.</p><ul><li>Megarange compatible</li></ul>

Shimano Altus RD-M310 Smart 7/8 Speed Rear Derailleur

Braze-on mounting uses fittings permanently mounted to the frame. Collar mounted derailleurs secure around the seat tube with a clamp. Direct mount are fastened to the chainstay.

The maximum number of teeth difference between the smallest and largest chainrings (front derailleur) or cogs (rear derailleur).

One-way friction clutch that increases chain tension, reduces chain and cage movement, and reduces dropped chains. Releases for wheel removal. 

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Shimano Altus RD-M310 Smart 7/8 Speed Rear Derailleur

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