These wheels have always been considered the more robust option, now even more so. Bigger, more abusive riders will really appreciate the new-and-improved EA90 SL. It features the wider, 17.5-millimeter (internal) rim width; fully certified Road Tubeless compatibility; and now the added durability of the all new Echo rear hub. Durability is also enhanced by a handful of extra spokes (20 front and 24 rear vs. 16 front and 20 rear on the EA90 SLX). This wheelset is completely hand built and acoustically tuned using Easton’s painstaking wheel building methods.