Bicycle Cnc Hollow Stem Aluminum Alloy Mountain Bike Downhill Hollowed Riser Tube Ultra-light Short Stems 0 Degree

--The height of this stem is 42mm. If the original stem exceeds 42mm, a front fork washer needs to be used. --When locking the vertical cover, two diagonal screws should be locked simultaneously. Do not lock a single screw or lock one side of the screw. --Length: 30mm. Handlebar Mounting Diameter: 31.8mm. Front fork mounting aperture: 28.6mm. --High performance: Made by professional manufacturer, quality assurance.Description Type Bicycle saddle Material polyurethane Applicable models mountain sports cars size one size Color 189 black red 189 black blue 188 black red 188 black blue Package List 1 seat Note The colors deviation might differ due to different monitor settings Manual measuring please allow 1 3mm errorthank you