Sunrace Rear Derailleur MS30 12/11/10/9sp Med
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• Alloy cage with adjustable chain stabilizer
• Forged alloy links
• 14t lower pulley and 12t upper pulley
• Max rear sprocket is 50t with 1X setup; 42t with 2X• 10/11/12 speed compatible
• Steel cage plates
• Cage: Medium• Min/Max: 10/50t
• Capacity: 40t
• Weight: 347g.