Sram Red E1 XG-1290 12 Speed Cassette

Unlock new levels of drivetrain performance with the SRAM XG-1290-E1 12-speed cassette engineered to deliver both expansive range and smooth, precise shifts that match modern road cycling demands.

Why youll appreciate it:

• Available in wide-range configurations from 10-28T up to 10-36T, letting you tailor your gearing for fast sprints, long flats or steep climbs.

• Built around SRAMs X-DOME one-piece machined steel construction lightweight yet strong, designed for high performance and durability.

• Spaced and contoured with tiny jumps between cogs (at least five one-tooth changes on key ranges) so you stay in your rhythm when launching, chasing or climbing.

• Compatibility with XDR driver bodies for road use the E1 variant is optimised for electronic shifting systems and high-performance setups.

Ideal for riders who:

• Want a top-tier cassette that supports race-level performance or high-end builds.

• Ride both fast flats and tough climbs, needing a cassette that adapts without compromise.

• Use modern 12-speed electronic drivetrains and demand that every shift be sharp, consistent and reliable.

Fit & install tip:
Check that your hub uses an XDR freehub body and select your preferred gear range. Install with the correct lock-ring torque, confirm chain length is suitable for the large cog (especially on the 10-36T version), and run through your full shift range to verify smooth transitions before heading out.