Upgrade your ride with the gram-shaving EA90 stem from Easton. This ultra-light bar-holder sports Easton's 3D forged aluminum to provide a great balance of low weight, high strength and stiffness for excellent steering control in all conditions. Easton's Top-Lock technology locks the stem and faceplate together, allowing for a highly rigid interface while minimizing loads on the bolts so the EA90 is perfectly safe for carbon bars.
Stem length is measured along the side of the stem from the center of the steerer to the center of the handlebar clamp (see diagram). Keep in mind that as a stem provides more rise, its effective length decreases. In the example above, if the +17-degree stem measures 135 mm, it actually extends 108 mm parallel to the ground.