Spank Split Stem - 43mm 31.8 Clamp +/-0 1 1/8" Aluminum BlackHighly weight optimized single crown stem ideal for trail and enduro riding applications. Dial in your fit with micro increment size options tuned to fit any rider size and style human. Human Factor cockpit setup index facilitates tuning of upsweep and backsweep Ultra short stack height and true zero degree rise Chamfered barclamp to reduce stress risers and increase fatigue life in handlebars Forged 2 piece faceplate design reduces overall weight