ZTTO Bike Handlebar Stem ?��35 Degrees Aluminum Alloy MTB Bicycle Stem Riser - 70mm Red ?The stem is made of 3D forged 6061 aluminum alloy,with T6 heat treatment,lightweight yet high-strength ?The angle design has excellent shock-absorption. It can reduce fatigue,and strongly fix the handle and the fork in long rides ?Three kinds of stems with various lengths will provide a comfortable feeling to every rider ?You can adjust the stem according to your demand,to ride comfortably on a road such as a slope ?Fine workmanship,with a beautiful finish,it will not fade ?It is easy to install and remove,even though you are an amateur Specification: ?Material: 3D forged AL6061 aluminum alloy,T6 heat treatment,polished ?Length: 70/90/110mm ?Handlebar diameter: 31.8mm ?Front fork diameter: 28.6mm ?Rise: ?��35?? ?Height: 41mm ?Weight: 70mm: about 146g,90mm: about 161g,110mm: about 173g Package included: ?1 x Bicycle Stem