HIGH-PERFORMANCE STEM: CNC weight optimized for 31.8mm bars. Our stem is among the shortest available better to fit the latest generation of super long bikes and super-wide bars, built for the demands of rough and tumble mountain riding. SPANK SPLIT Stem, 43mm Orange weight optimized single crown stem for 31.8mm handlebars. Cockpit setup index lasered onto stem. Ultra-short stack height and true zero-degree rise.