evo.com | Race Face Stems > The Race Face Turbine Stem is optimized for modern bike geometry and CNC-machined from 6000-series alloy to minimize weight without sacrificing strength. With a host of eye-catching anodized colors to choose from, it's the perfect way to add a little flair and upgrade your rig at the same time. Handlebar Clamp Width 48mm Offset 0mm Stack 42mm Steer Tube Diameter 1 1/8" 6000-series Aluminum | Race Face Turbine Stem 2027 - 50mm in Brown | Aluminum