The long-cage SGS design is compatible with cassettes up to 51T, making it ideal for modern XC and trail builds. Shimano XTR RD-M9100 SGS Rear Derailleur – 12-Speed – New. • Shimano XTR RD-M9100 SGS.
IRDM9100SGS
Shimano XTR RD-M9100-SGS 12 Speed Rear Derailleur w/ Clutch: Long Cage, Gray *OE
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