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Explore the path less travelled with SRAM's Rival AXS XG-1251 Cassette. Part of their XPLR family, the XG-1251 provides a wide 10-44T gear range to give you all the gears you'll need when you want to unleash your inner explorer.10-44T ratio gives 440% range, offers all the gears you need to explore in the wildX-Range gearing gives smoother gear progression, so you're always in the right gearMini Cluster technology for light weight and excellent durabilityOnly compatible with XPLR 1x Rear Derailleurs, FlatTop chains and XDR driver bodyMake that daily ride from your front door a little spicier with some dirt. The 440% range of the XPLR XG-1251 cassette provides smooth gear progression when you re sweating up gravel climbs, and tight jumps on the high end for when it s time to drill it on asphalt. Shift features on each cog are optimized for electronic shifting, so you ll get fast, smooth and precise shifts every time.