Easton brings road performance to a new level with composite technology. The EC90 SLX is the lightest, strongest and stiffest road bar on the planet. - All carbon TaperWall design- Superior stiffness and impact strength- Lightest road bar available- Unlimited fatigue life- Advanced ergonomic design- Superior vibration dampening-Width measured Center - Center, which means a 46cm bar is really 48cm wide.