The e*thirteen 9-46 wide range 11-speed cassette offers 511% range, more than SRAM Eagle 12-speed, and now it’s easier than ever to install. The original design used a lock ring to secure the upper alloy cluster to a SRAM XD Driver Body. That lock ring required a special tool, which is always a pain, so they redesigned it to be a one-piece design. Now, it’s a simple pinch bolt. Just slide it into place, tighten the bolt to secure it to the freehub body, then use a chain whip to secure the lower steel cluster to it.
The benefit to their design is that you can get extremely wide range in a compact package, which also lets you run a smaller chainring for better ground clearance up front. And, assuming your rear derailleur is already compatible with a wide-range cassette, you don’t need to modify it to fit a gargantuan upper cog. Check our review of the system here.
It’s available in TRS+ for $249 (€259) and TRSr for $349 (€369), the latter coming in lighter thanks to additional machining. The pics above show the differences on both clusters, with TRS+ on the left. Claimed weights are 339g and 303g respectively.
