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Focus and determination defines you. You are streamlined and efficient. You embrace the most difficult challenges and refuse to give up. You never make excuses, you never stop trying. You conquer mountains from the bottom up, never satisfied with only the descent. You crush the whole loop, every pedal stroke a relentless assault on gravity, your competitors and your personal records. You are XTR and XTR is you. Seriously fast. Confident. Experienced. XTR is committed to rewarding your every effort and has the pedigree to deliver. Dripping with performance, the XTR M9050 drivetrain will not only transfer every watt of energy from pedal to wheel, it will seamlessly shift between perfectly spaced gears allowing you to maintain critical rhythm and momentum over any terrain. You tell yourself you can race without XTR, but you won’t. Never second guess your first instinct.
Shimano XTR Di2 M9050 brings the legendary performace of Shimano XTR into the digital realm. Shimano's game-changing Di2 technology uses powerful digitally-controlled servo motors, which are built into the derailleur bodies, to deliver clean and accurate shifting, time after time. All Di2 componentry is sealed and waterproof, ensuring performance even in the most brutal conditions.
The Shimano XTR Di2 M9050 Rear Derailleur is the ultimate in rear derailleurs. With unrivaled chain control and shift performance that is consistent for the long-haul, the XTR Di2 M9050 Rear Derailleur is an engineering masterpiece that won't disappoint. The M9050 derailleur utilizes Shimano Shadow RD+ clutch technology, keeping chain tension in check over any terrain and ensuring accurate and responsive shifting no matter the conditions. Just like Shimano's mechanical mountain rear derailleurs, the XTR Di2 M9050 Rear Derailleur employs a low-profile geometry that keeps the rear derailleur out of the way of trail obstacles and reduces overall bulk. The XTR Di2 rear derailleur maintains constant communication with the front derailleur, so when used in Syncronized Shfit mode, the two work in perfect unison, creating an unparalled shifting experience. In the unlikely event that your Di2 battery runs out, the XTR Di2 rear derailleur remains in the last gear that was selected and can be shifted by hand to anywhere in the cassette, so you'll never get stuck riding back to the car in a suffer-inducing gear combination.
Reviewed by 1 customer
Displaying review 1
Comments about Shimano Di2 XTR M9050 Rear Derailleur:
The derailleur perfected! Hard to say anything bad about it. If you ask it to shift, it WILL shift. Super smooth and silky, no hesistation, even when you're just banging through the gears under max power. It doesn't care. For max performance, it pairs especially well with the direct mount rear derailleur standard if you happen to have a frame that supports it.
My only gripe is that the clutch tensioner doesn't appear to work as well in the smaller cogs, e.g. when you're in your fastest gears and hauling down the trail, the clutch does less of what it's supposed to do. This is normal for most clutched derailleurs, but for XTR I just wish it was designed better. Even with maximum clutch tension applied the chain slaps a lot when I'm in my small cogs. And yes, my chain length is correct. All I can really do is live with it or slap a chainstay protector on.
It's also kind of noisy compared to the road Di2 derailleurs. I wasn't expecting this. For someone wanting utter silence, this derailleur is markedly louder than a normal mechanical derailleur, due to the stronger servomotors. It sounds like you're riding around with a robot, which is kind of rad. But it might annoy your riding buddies.
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Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.
Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.