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SRAM
XX1 Eagle AXS 12-Speed Rear Derailleur

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Why We Like The XX1 Eagle AXS 12-Speed Rear Derailleur

More than just a mechanical derailleur with a battery and a motor bolted on, the XX1 Eagle AXS 12-Speed Rear Derailleur is the heart of the whole AXS system. You'll enjoy instantaneous shifts from a single touch, even under extreme chain loads during the heat of racing. It's built with a lightweight carbon fiber cage and titanium hardware that make it an ideal choice for XC riding and racing, as opposed to the enduro-focused XO1 derailleur with its forged aluminum cage. It features a shorter cage for 10mm more ground clearance than mechanical Eagle, with more chain wrap on the cassette to sit slightly further forward and further inboard from mechanical Eagle, all of which gives you more clearance against rock strikes. The Eagle AXS derailleur is also smart enough to protect itself thanks to its innovative and resilient Overload Clutch. In the event of an impact, the motor gearbox disengages, giving the derailleur freedom to move, and instantly returns back to its position while avoiding damage to the internal motor. The XX1 AXS derailleur is tested to the IP69K water and dust proofing standard so whatever race day brings, you’ll be ready.


An ever-critical question with electronic groupsets is battery life. All day epics packed with steep climbs and rowdy descents mean a whole lot of shifting, and can be trying on a battery, but SRAM is confident that the derailleur can run for 25+ hours from a single charge. The battery is removable, so you don’t have to bring your steed into your living room to plug it in, you can simply pop the battery off of the back, and bring it in to be charged easily with a USB device. SRAM’s AXS battery remains the same from its derailleur to RockShox Reverb AXS dropper post, so if you’re sporting both on your bike you can swap the batteries around, should one run out of juice before the other. In the front, the shifter runs off of a single watch battery, and claims to have over a year of life from a single battery, keeping maintenance low.


Details

  • XC-focused derailleur for Eagle AXS wireless drivetrains
  • Enjoy precise, silent, and reliable shifting performance
  • Carbon fiber cage with titanium hardware to save weight
  • Overload clutch protects the internal motor from impacts
  • System is water and dust proof for reliability on the trail
  • Can be easily programmed and personalized by the AXS app
  • 10mm more ground clearance than mechanical Eagle derailleurs
  • AXS battery sold separately
  • Item #SRMD11H
Material
[cage] carbon fiber, [hardware] titanium, [bearings] steel
Capacity
[max tooth] 52
Cassette Range
10 - 50t, 10 - 52t
Gearing
single
Compatibility
SRAM Eagle AXS shifters (controller), SRAM X-DOME Eagle cassettes
Claimed Weight
12.6oz (357g)
Manufacturer Warranty
2 years

Overall Rating

5 based on 2 ratings

Review Summary

5 Stars - 2 reviews
4 Stars - 0 reviews
3 Stars - 0 reviews
2 Stars - 0 reviews
1 Stars - 0 reviews

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