Spank - Split StemSPANK SPLIT STEM A highly weight optimized single crown stem, ideal for Enduro applications with 31. 8mm handlebars. The Human Factor design features micro increment size options, tuned to fit any rider size and style. Human Factor cockpit setup index facilitates tuning of upsweep and backsweep Ultra short stack height and true zero degree rise Chamfered bar clamp to reduce stress risers and increase fatigue life in handlebars Forged 2 piece faceplate