Race Face Turbine Stem OEThis MTB stem features a robust aluminium construction, which makes it perfect for blasting across the mountain bike trails at speed. Coming complete with a stylish design, this model looks as amazing as it performs on every off-road adventure. Features: Material: Aluminium Use: MTB Diameter: 31.8mm Steerer Diameter: 1 1/8" Degrees: 6 degreesBuy Race Face Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.