Shimano XTR Rear Derailleur & Shifter Upgrade Kit 
MSRP $450
Rear Derailleur is XTR RD-M9100-SGS
Designed with Shadow RD+ low profile technology
Decreased rear derailleur tension 
51Tooth MAx Long Cage Derailleur withCarbon Cage & 240 Grams
Shifter is XTR SL-M9100 !!!NOT!!! I-Spec Shifter is Standard 22.2 Clamp
-20% quicker lever access time
-35% shifting operation force (vs. M9000)
Shifter weighs 74grams

Never Used just open packages

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