

"What Our Gearhead® Experts Are Saying: ""The XTR Di2 long-cage derailleur is a total game-changer. Wireless shifting is crisp and immediate, and it’s built tough—like, really tough. I’ve clipped it on rocks and watched it bounce back without missing a beat. Add in crash recovery and a clean look? It’s the future of trail drivetrains.""When we’re riding full-speed through aggressive trails, we need a derailleur that can shift with precision and survive the terrain. The Shimano XTR RD-M9250-SGS Rear Derailleur takes everything we know and love about XTR and pushes it further with wireless Di2 shifting, all-terrain durability, and smart, self-correcting recovery tech. Built to pair with Shimano's 10-51T 12-speed cassettes, this long-cage derailleur delivers both wide-range gearing and ultra-fast response. With features like Automatic Crash Recovery and a new wedge-shaped body that glances off impacts, the M9250 is built to take hits and keep going. The SHADOW ES profile keeps the derailleur tucked and quiet, while Hyperglide+ technology ensures ultra-smooth shifts—even under load. From enduro stages to backcountry lines, this is Shimano’s toughest, most advanced rear derailleur to date."
Price: $665.00 from Backcountry
| Merchant | Price | |
|---|---|---|
| $665.00 | Visit Store |
"What Our Gearhead® Experts Are Saying: ""I’ve run this derailleur on bikes that see everything from XC race pace to enduro-grade rock hits. The wedge shape and impact recovery really do reduce damage, and the shifting stays sharp even when the ride...
"What Our Gearhead® Experts Are Saying:""I’ve ridden both the mid-cage and long-cage versions depending on how light or wide-range I want to go. The shifting is snappy and instant, and with the battery stashed inside the derailleur housing, I never...
"What Our Gearhead® Experts Are Saying: ""I’ve set this up on everyday trail bikes where rocks and mistakes are part of the ride. The automatic impact recovery actually works, and the compact 9–45T pairing keeps it tucked out of harm’s way. It’s...