These wheels have everything anyone could ever ask for: aerodynamics certified Road Tubeless compatibility without rim strips braking performance durability and competitive weight. These aren’t simply race-day only wheels they’re built strong. Easton’s 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.32 seconds faster in a 40km Time trial compared to the 2012 Easton EC90 Rear Hub Bearings: One 6901 (non-drive side) One 71801 Angular Contact (drive side) Freehub Bearings: One 3645 Angular Contact (inner) One 6901 (outer)
| Rear Axle | 12mm Thru x 142mm |
| Rim Width (Internal) | 19 |
| Cassette Body Type | Shimano HG 11/12-Speed Road |
| Color | Black |
| Wheel Size | 700c |
| Defined Color | Black |
| ISO Diameter | 622 / Road / 29" |
| Tire Type | Tubeless Ready Clincher |
| Hub/Brake Compatibility | Center-Lock Disc |
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