Description: 3D Forged for ultimate strength,then CNC weight optimized in every way. Lower the cockpit of your cross country bike with the -17 degree Stem. Ideally suited for 29er use, this stem features a negative 17-degree rise and low-profile 32-millimeter stack height. Attach a flat, wider handlebar in the 680 to 740-millimeter range for increased control and a lowered, race-friendly profile. It features 6061-series aluminum for lightweight, yet robust cross-country performance. And since the 6061-series aluminum is nice and strong, HONSUN is able to machine this stem to shave precious grams. The included chromoly hardware is durable, while the four-bolt alloy faceplate increases strength and looks great with its black anodized finishSpecifications: HONSUN MTB STEM 35/31.8? Brand Name:PROHONSUN Material:Aluminum Alloy Handlebar Clamp Diameter:32.6-35mm Height:26-35mm Fork Clamp Diameter:28.6mm Handlebar clamping diameter:31.8mm/35mm model:HS-555 Package Included: 1*Bike Stem