The 460% range of the RED XPLR XG-1391 13-speed cassette gives you the climbing gears you crave on gravel and the tight jumps you need on spicy sprints. Enjoy the highest shift quality on even the roughest roads thanks to optimized shift features on each cog, all from a cassette that weighs only 288 g. SRAM Red XPLR Groupset ReviewExpanded 460% range gives the added coverage 1x gravel riders demandFor use with XPLR 1x 13-speed rear derailleursOnly 288 gCompatible with all road Flattop chainsCompatible with XDR driver body Effortless Resilience. Effortless Precision. SRAM RED XPLR AXS is the most advanced gravel group, featuring a 13-speed 10-46T range so youre always in the right gear. Precise shifts with tight jumps between cogs keep you in the gearing sweet spot, and the Full Mount derailleur that fits on frames with the UDH interface ensures this system can take whatever you throw at it. True one-finger braking, and significant weight reductions mean RED XPLR AXS fli