SRAM XX1 XG-1199 Cassette - 11 Speed - 10-42t
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Product Information
Full details
The SRAM XX1 XG-1199 11-speed cassette is designed for serious mountain bike enthusiasts and cross-country racers who demand high-performance shifting and a massive gear range. Its primary benefit is the X-Dome technology, which creates a lightweight, mud-clearing structure that maintains optimal shifting precision under load. While it provides an impressive 10-42 tooth range, note that it requires an XD driver body, which may necessitate a rear hub freehub body upgrade for some riders.
All features
| Model Part Number | FWXX1042 |
|---|---|
| Brand | SRAM |
Extended Product Information
FAQs
Does this cassette work with Shimano freehubs?
No, this cassette is specifically designed for the SRAM XD driver body.
Can I use this with a 12-speed setup?
No, this is an 11-speed specific cassette designed for 11-speed drivetrains.
Why is there a 10-tooth cog?
The 10-tooth cog allows for a higher top-end gear ratio, giving you more speed on descents than a standard 11-tooth cog allows.
How should I clean the X-Dome?
Use a soft brush and a mild bike-safe detergent. The open design makes it easy to rinse out mud with a low-pressure stream of water.
Is the cassette made of aluminum or steel?
The XG-1199 is constructed from high-grade steel to ensure maximum durability while maintaining a lightweight profile through its unique architecture.
Troubleshooting
Cassette feels loose on the hub
Ensure the lockring is tightened to the recommended torque specification and confirm the XD driver interface is fully seated.
Poor shifting at the 42t cog
Check your rear derailleur's B-tension screw adjustment to ensure proper clearance between the guide pulley and the largest cog.
Grinding noise during pedaling
Clean the cassette thoroughly to remove mud and check for excessive chain wear which can cause premature cassette tooth erosion.
Pros and Cons
Pros
- Extremely lightweight construction
- Superior mud-clearing capabilities
- Impressive 420% gear range
- Precise and crisp shifting performance
Cons
- Requires an XD driver body
- Higher price point compared to entry-level cassettes
- Replacement requires replacing the entire cassette unit
Setup, Compatibility & Care
To install this cassette, you must have a wheelset equipped with an XD driver body; it is not compatible with standard Shimano-style HG freehub bodies. When installing, ensure the threads on the XD driver are clean and lightly greased to prevent seizing. Use a standard cassette lockring tool with the appropriate torque specification to tighten the unit securely against the hub. For care, avoid using harsh chemical degreasers that could strip lubricants from the hub internals. Regularly clean the cassette with a soft brush and mild soap to maintain the structural integrity of the steel dome. If you notice skipping or hesitation during shifting, verify that your 11-speed derailleur hanger is straight and that the B-tension screw is adjusted to clear the 42t cog.