Features1Hollow Design: The bike stem features a hollow design, which ensures robustness with strength compatible with light weight 2Scope of Application: The bike handlebar stem riser is suitable for mountain bikes, suitable for DIY, modified or upgraded bikes 3CNC Process: The bike handlebar stem adopts full CNC process, which ensures that the appearance is glossy and not easy to hurt hands 4Aluminum Alloy: The bike stem riser is made of aluminum alloy, which is wearable and durable, and has a long service life 5Easy Replaceable: Operation is simple and convenient, mountain bike stem can be used without complicated process, providing you with a more comfortable riding experienceSpecificationItem Type:BikeStemMaterial: Aluminum AlloyAngle: -17 DegreeHandle Diameter: Approx. 31.8cm/12.5 inFront Fork Diameter: Approx. 28.6cm/11.3inPackage List1 x BikeStem