The X1 group has all the important features of the high-priced spread with a modest increase in weight.

X-Horizon design maintains constant chain gap across all gears and eliminates ghost shifting. Must be used with SRAM 1x11 shifter and cassette. Roller bearing clutch eliminates derailleur bounce and chain slap. Cannot be used with double or triple chainrings. Cage Lock feature simplifies wheel removal and chain installation. Wide-tooth, narrow-tooth pulley wheel maximizes chain control by fitting inner and outer chain links perfectly.

Item Specifications: Color, Black, Weight, 256, Largest Cog, 42, Chain Wrap Capacity, 32, Cage Length, Medium, keyword search, 1x11, Drivetrain Speeds, 11, Rear Der/Shifter Compatibility, SRAM X-Actuation, Rear Derailleur Mount Type, 10x1 Standard,

SRAM X1 11-Speed Rear Derailleur, Medium Cage, Black - Wide-Tooth Pulley & Anti-Slip Clutch

Reference Number: 3C42O9

High-Performance SRAM X1 Rear Derailleur - 11 Speed, Medium Cage, Black

Elevate your mountain biking and trail riding with the SRAM X1 Rear Derailleur, engineered for durability, precision, and reliability. Designed for 1x11-speed drivetrains, this medium cage derailleur offers seamless gear shifting and maximum performance on diverse terrains. Its sleek black finish complements any bike setup, providing both style and function.

Materials & Construction:

Built with high-quality aluminum and steel components, the SRAM X1 derailleur balances lightweight design with exceptional strength. Weighing only 256 grams, it ensures minimal added weight without compromising durability for demanding off-road conditions.

Performance & Engineering:

The X-Horizon design maintains a constant chain gap across all gears, eliminating ghost shifting and improving drivetrain stability through the entire gear range. The wide-tooth, narrow-tooth pulley wheels maximize chain control by perfectly fitting both inner and outer links, reducing drivetrain noise and enhancing efficiency. The roller bearing clutch secures the chain, preventing derailleur bounce and chain slap for smoother, more controlled rides on rugged trails.

Components & Technology:

Equipped with sealed roller bearings and advanced cage lock features, this derailleur allows for easy wheel removal and chain installation, making maintenance quick and simple. The long cage length accommodates up to a 42-tooth largest cog and an 18-tooth front difference, optimizing gear range and derailleur capacity for aggressive trail riding.

Style & Use Case:

Designed specifically for 1x11 drivetrain setups, the SRAM X1 rear derailleur delivers reliable performance for mountain bikers, trail enthusiasts, and adventure riders seeking a streamlined, minimalist drivetrain with high output. Its robust construction and innovative engineering make it perfect for aggressive riding, enduro, and cross-country applications.

Key Features:

- Compatible with SRAM 1x11 shifters and cassettes

- Precision X-Horizon parallel cage design for consistent shifting

- Roller bearing clutch for chain stability and noise reduction

- Wide-tooth pulley wheels for enhanced chain control

- Durable black finish with lightweight construction

- Easy installation with Cage Lock feature

Upgrade your mountain bike with the SRAM X1 Rear Derailleur for a combination of lightweight efficiency, precise shifting, and rugged reliability. Whether conquering technical trails or climbing steep climbs, this derailleur ensures smooth, dependable performance every ride.

  • High-performance SRAM X1 11-Speed Rear Derailleur with Medium Cage for versatile mountain biking and gravel riding.
  • Constructed with durable, lightweight materials weighing only 256 grams, offering excellent strength-to-weight ratio for demanding rides.
  • Advanced X-Horizon design ensures smooth, precise shifting across an 11-speed cassette with a maximum 42T cog, eliminating ghost shifting for reliable performance.
  • Integrated roller bearing clutch with chain slap eliminator provides enhanced chain stability, reduced bounce, and quieter ride in rugged terrain.
  • Features a Cage Lock mechanism for quick wheel removal and chain installation, plus wide-tooth pulleys that improve chain control and durability in variable conditions.
Item Specifications
Max Front Difference18T
Largest Cog42T
Defined ColorBlack
Cage LengthLong
Raw Product Weight Grams256g
Drivetrain Speeds11
Mount TypeStandard

Why 365 Cycles?

365 Cycles is an Authorized SRAM Dealer, and we offer the Full SRAM Warranty!

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Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
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Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
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Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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