Smooth, light and reliable gearing. Long Cage Altus Rear Derailleur.

• Model: RD-M310
• Compatible with 7 and 8-speed Rapid Shifting drivetrains
• Total Capacity: 43T
• Low Sprocket: 34T-Max, 28T-Min
• Top Sprocket: 14T-Max, 11T-Min
• Pulley 13/15T
• Wide link, precise shifting.

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