SRAM XPLR XG-1271 CassetteSRAM XPLR XG 1271 12 SPEED CASSETTE Make that daily ride from your front door a little spicier with some dirt. The 440% range of the XPLR XG 1271 cassette provides smooth gear progression when youre sweating up gravel climbs, and tight jumps on the high end for when its time to drill it on asphalt. Shift features on each cog are optimized for electronic shifting, so youll get fast, smooth and precise shifts every time. SPECIFICATIONS Speeds 12 Speed