Aluminum Alloy Bike Stem 31.8 x 130mm 0-60 Degree Adjustable MTB Fork Stem Extender Handlebar Stem Riser Bicycle Cycling Stem Head Up Adapter Bike Neck Height Spacer

For 28.6mm / 1.1in front fork, 31.8mm / 1.3in handlebar. ± 60° adjustable angle helps to up or down the height of handlebar, achieving a more comfortable riding position. and better for your back. Sand blasted aluminum alloy construction, solid, strong, corrosion-resistant and rust-free. Easy installation, just connect up the original front fork stem with provided hex wrenches. Suitable for most road bike, fixed gear bicycle, mountain bikes, etc.