FCFB blue stem Aluminum Package Carbon Road stem Mountain Bicycle glossy Stem Bike Stem angle 17*70/80/90/100/110mm angle 6 60/70/80/90/100/110/120mm Material :Aluminum Package Carbon Weight:110-156g fork diameter:28.6mm handlebar diameter :31.8mm angle 6 60/70/80/90/100/110/120mm angle 17 70/80/90/100/110mm