XG-1299 XX1 Eagle 12-Speed Cassette

What Our Gearhead® Experts Are Saying:

Built for elite performance and obsessive weight savings, the SRAM XG-1299 XX1 Eagle 12-Speed Cassette is the lightest and most refined option in the Eagle lineup. It features SRAM’s X-Dome architecture—a fully machined steel cluster paired with an aluminum 50 or 52-tooth cog—offering a rare combination of durability, stiffness, and low weight. The result is crisp, consistent shifting and an exceptionally strong structure built for aggressive trail, enduro, and XC use.

Offered in both 10–50t and 10–52t ranges, the XG-1299 delivers a massive 500–520% gear range, making it easier to stay in the big ring longer while still offering bailout gears when the grade turns brutal. A Ti Nitride coating enhances longevity, improves chain glide, and sheds trail grime to keep shifting smooth in wet and muddy conditions.

Designed to interface exclusively with SRAM’s XD freehub bodies and Eagle 12-speed drivetrains, the XG-1299 is a must-have for riders chasing race-day efficiency or building up a no-compromise dream rig.