Shimano XTR RD-M9100 Rear Derailleur (Black) (1 x 12 Speed) (Long Cage) (SGS) (Shadow Plus)
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Shimano XTR RD-M9100 Rear Derailleur (Black) (1 x 12 Speed) (Long Cage) (SGS) (Shadow Plus), This is Shimano's XTR M9100-SGS Rear Derailleur. This derailleur gives you the ability to use a 51 tooth cog in the back, so when the trail gets steep you will be ready. The extra cog of 12 speed gives you more range and allows for smaller jumps between cogs to help you find the right gear. Features: Decreased tension at low gear position to prevent high chain tension Bigger 13T pulley Specifications: Weight: 240g Speeds: 1x12 Max Cog: 51T Min Cog: 10T