The Race Face Turbine is a design and technological gem. In the production of this representative, 7075 aluminium alloy, which is used in the aerospace industry, was used. The use of this material guarantees strength, durability and excellent weight. This version of the stem brings the benefits of the 35mm and the increased strength of the R version for the toughest aggressive riding. Designation: XC / Trail / AM Stroke: 0 Size: 40 mm Handlebar diameter: 35 mm Fork post diameter: 1 1/8" Weight: 138g (50mm)