Shimano Altus RDM310DL 7/8sp Rear Mech Derailleur 
 

Specifications:

• Altus MegaRange MTB rear derailleur with light action operation and over-size pulleys for a wide gear choice
• Oversize 15-tooth tensioner and 13-tooth guide pulleys reduce noise and wear
• Top normal spring for use with Rapidfire shifters
• 7 and 8 speed compatible
• For use with 28 to 34 tooth low rear sprockets, total capacity 43 teeth

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