Shimano Altus RD-M310 7/8 Speed Rear Derailleur 4018-121
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Shimano Altus RD-M310 7/8 Speed Rear Derailleur

4018-121

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Description

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Use this direct attachment rear derailleur on hybrid bikes and urban rides.

  • Megarange compatible.

Tech specs

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Ideal for
  • Cycle commuting
  • Cycle touring
  • Urban cycling
Type Rear
Mounting

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.

Direct
Compatibility
  • 7-speed
  • 8-speed
Maximum sprocket 34T
Minimum sprocket 11T
Clutch

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

No
Made in Japan