Spank Race 2 31. 8mm Stem - OE Packaged Short, Stiff, Ready for Anything All-mountain and enduro riders who need a short, confidence-inspiring stem will find exactly that in the Race 2. The iconic hourglass sectional profile locks in torsional stiffness where you need it most, and the chamfered bar-clamp zone reduces stress risers so your bars stay safe and secure over hard impacts. CNC-machined and shot-peened for strength without unnecessary weight, the Race 2 is rated ASTM 5 and spans disciplines from trail and enduro to freeride and e-MTB. Available in 35mm and 50mm stem lengths to dial in your front-end geometry and cockpit. Features31. 8mm handlebar clamp pairs with standard 31. 8mm MTB bars for a precise, rattle-free connection Hourglass sectional profile delivers torsional stiffness for direct, confidence-inspiring steering response Chamfered bar-clamp zone reduces stress risers and extends fatigue life in handlebars under repeated hard use CNC weight-optimized construction removes material where it isn't needed without giving up strength Shot peened and anodized finish increases surface hardness and resists corrosion for long-term durability ASTM 5 rated approved for all mountain, enduro, freeride, e-MTB, and dirt jump use Specifications Handlebar Clamp Diameter31. 8mm Steerer Clamp Diameter1-1/8" (28. 6 mm) *standard steerer size for most modern bikes Length35mm, 50mm Rise / Angle0degClamp Width31. 8mm (handlebar clamp)Stack Height35mm stack height Material CNC weight-optimized alloy, shot peened and anodized Weight Approx. 150g (35mm length), 180g (50mm length)Intended Use Trail, All-Mountain, Enduro, Downhill, BMX | Spank | Race 2 31. 8Mm Stem - Oe Packaged | Black | 31. 8Mm, 50Mm | Aluminum