Talk about features! These wheels have everything anyone could ever ask for: leading aerodynamics, certified Road Tubeless compatibility without rim strips, unrivaled braking performance, outstanding durability and competitive weight. Don’t take our word for it - check out the results from our exhaustive wind tunnel testing. Riding these wheels in a 40-kilometer time trial saves a whopping 14 seconds over the next fastest wheel. Riders concerned with finishing times and power output can’t afford not to buy these groundbreaking wheels. These aren’t simply race-day only wheels, they’re built strong. Easton’s industry-leading carbon lay-up process provides smooth, consistent braking. Like every high-end wheel in the Easton line, EC90 Aero 55 wheels are entirely built by hand from start to finish and acoustically tuned. These wheels combine top-end materials, a methodical build and an advanced rim design. They are extraordinarily fast wheels that will roll true for years to come.
Going tubeless allows you to run lower tire pressures without the added weight of a tube. Lower tire pressure has many benefits, including greater traction, lower rolling resistance over rough surfaces, and decreased risk of a puncture-related flat.
Tubeless-ready rims and tires are parts of a complete system that eliminate the need for tubes by creating an airtight chamber between the rim and tire. Liquid sealant is added to the chamber to fill small punctures and maintain air pressure while you ride.
UST (Universal Standard for Tubeless) is a specific type of tubeless system that dictates the shape of the rim and tire bead. UST rims should be paired with UST-specific tires for best results.
|Inner Rim Width
|Outer Rim Width
|Sapim CX-Ray, straight-pull
|1x NDS / 2x DS
* Subject to change without notice.
|142 x 12mm / Shimano/SRAM / Black / 700c