Eagle Transmission cassette
SRAM XX SL Eagle Transmission XS-1299 Cassette
The lightest T-Type cassette SRAM makes, machined for XX SL Eagle Transmission with a 10-52T spread for XC racers who count every gram.
Highlights
Why we rate it
Full X-SYNC profiling
Every cog is shaped to work with the T-Type chain, so shifts stay crisp even when you change gear mid-climb under full power.
Weight-saving construction
SRAM's top-tier build pares material from the large sprockets, making this the lightest option in the Transmission range.
Wide 520% spread
A 10T top gear for fast descents and a 52T bailout cog for steep, technical climbs.
XD fitment
Slides straight onto an XD driver body without spacers or adaptors.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model
- CS-XS-1299-A1
- Speeds
- 12
- Range
- 10-52T
- Cogs
- 10-12-14-16-18-21-24-28-32-38-44-52
- Gear range
- 520%
- Driver body
- XD
- Chain
- T-Type (Flattop) Eagle chain
- Compatibility
- Eagle Transmission (T-Type) rear derailleurs only
- Weight
- 350g (SRAM engineering estimate)
- Finish
- Black-silver
- Drivetrain
- 1x
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, setup or advice, call 0203 148 6764 or email hello@thecyclecollective.cc.