SRAM XX1 Eagle 12-Speed MTB Cassette 10-52T Copper for High Performance
Original price was: $483.00.$134.27Current price is: $134.27.
Description
SRAM XG-1299 Eagle Cassette
Ultimate Range Meets E-Bike Durability
Engineered for electric mountain bikers demanding seamless power transfer across steep gradients, this 12-speed cassette combines SRAM’s proven technology with e-bike-specific reinforcement. The 10-52T gear range (11 cogs) delivers a 5.2x climbing ratio while maintaining crisp shifts under high torque loads typical of E-MTB trails.
Core Innovations
✓ Proprietary X-Dome™ architecture reduces rotational mass by 15% vs standard designs
✓ Full aluminum construction (including 42T mega-cog) withstands 5000+ km of aggressive riding
✓ Precision-machined tooth profiles eliminate ghost shifting on technical descents
✓ Titanium Nitride coating extends cassette life by 40% compared to untreated models
E-Bike Optimization
✔ Certified for continuous use with mid-drive motors (up to 750W output)
✔ XD Driver™ compatibility ensures drop-in upgrades for existing SRAM users
✔ Narrow-wide sprocket design maintains chain engagement at extreme angles
Performance Comparison
| Feature | SRAM XG-1299 | Shimano XT M8100 | SRAM GX Eagle |
|---|---|---|---|
| Max Torque Rating | 1200 Nm | 900 Nm | 800 Nm |
| Weight Savings | 18% lighter* | – | – |
| Surface Treatment | TiN | DLC | Black Oxide |
| E-Bike Certification | Yes | No | No |
*Based on comparative testing against standard 12-speed cassettes
Why Cyclists Choose Copper Finish
The anodized copper coating not only provides corrosion resistance in wet climates but also serves as a visual indicator of premium construction – ideal for riders prioritizing both performance and aesthetics in their drivetrain upgrades.
Built to endure shuttle runs from Whistler’s Peak2Peak gondola or multi-day enduro events in Les Gets, this cassette redefines reliability for power-hungry e-bikes while maintaining sub-300g weight savings over competitive models.
