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- Dual SIS front index shifting
- Max. chainring size: 42T/48T
- Wide link design
- Modified cage tail shape for better tire clearance
- Total capacity: 20T
- Front difference: 10T
- For 66-69° chainstays
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Review Shimano FD-M310 Altus Triple Front Derailleur - 3 x 7/8 Speed
