Having trouble finding the perfect aero position? Vision's versatile Size-More Stem offers ten degrees of reversible rise, a 2-bolt assembly that doesn't crowd your clip-ons and a steerer reducer so you can use it with 1- and 1 1/8-inch forks. The stem is forged and machined from 6061/T6 aluminum so it's plenty stiff while you're torquing the bars. Plus, the gloss finish looks great on high-tech road machines.
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.
Clamp Diameter: 26.0mm
Steerer Size: 1 1/8-inch (1-inch reducer included)
Weight: 166 grams (100mm)