The sram xplr xg-1251 cassette offers a 440% gear range for versatile gravel riding. It enables smooth shifting on steep gravel climbs and closely spaced gears for efficient riding on asphalt. The sprockets optimized for electronic shifting ensure precise fast and reliable gear changes. - the x-range gearing gives you a wider range and smoother shifting so you're always in the right gear. - the 440% range provides the coverage that 1x gravel riders want. - for use with xplr 1x rear derailleurs. - compatible with flat-top chains. - compatible with xdr rear derailleur housing. - mini cluster technology for light weight and durability. - cog sizes: 10-44t: 101113151719212428323844
