13 cogs on a single hub body opens up gearing possibilities that didn't exist a few years ago. The SRAM Force XPLR E1 XG-1371 cassette stacks a 10-44T range onto a standard XDR freehub, giving gravel and adventure bikes the low-end bailout gear for steep climbs without sacrificing tight spacing at the top of the cassette. The jump from 12-speed to 13-speed isn't just one more gear—it's SRAM filling in the gaps that 12-speed wide-range cassettes left behind.

The XG-1371 uses SRAM's X-Range gearing philosophy, which prioritizes usable jumps between cogs over theoretical range. That 10-tooth small cog delivers high-speed potential for paved descents and tailwind sections, while the 44-tooth climbing gear handles the kind of grades that send road bikes walking. Between those extremes, the progression stays predictable—no awkward jumps that leave you hunting for a gear that doesn't exist.

Construction follows SRAM's pinned and machined approach at this tier. Steel cogs handle the durability demands of off-road riding where mud, grit, and occasional chain drops take their toll. The cassette works exclusively with SRAM's XDR driver body and pairs with Force XPLR derailleurs designed for the 13-speed chain width and pull ratio. If you're building up a gravel bike or upgrading an existing XPLR system, this cassette slots directly into the ecosystem.... Read More