[DEGREES DROP DESIGN]- this design improves the aerodynamic properties of the stem, which is something road racers will appreciate. It comes in lengths from 80mm to 130mm and a -8 degrees dropThe shorter stem also aids manoeuvrability, short bicycle stem is more conducive to the control of the bike, so that the bike steering is more flexible, and the short stem with the long handlebar,will safer and more stable at high speed.[BIKE STEM SIZE]- Sleek aesthetics combine with performance in this Handlebar Stem Suitable for 318mm (1-1/4inch) handlebars, front fork stem diameter 286mm (1-1/8inch) ,Length: 75,95mm (center distance of the center of angle disk ),Weight: 114g,Please Confirm Your bike Size Before Your Purchase.[3D ALLOY]- Bicycle handlebar stem Made of high quality 3D aluminum alloy, sturdy and durable, not easy to deform and rust,Matt black finishing makes it extremely easy to wipe off and clean,Suitable for most mountain bikes, road bikes, fixed bicycles, BMX, etc. Come DIY to upgrade your bike for a more comfortable riding experience[EASY INSTALLATION]- The bicycle stem is easy to install, Just connect up the bike stem riser to front fork stem. Four bar clamp holds bar securely in position. Increasing the friction between the card slot and the handlebar can effectively avoid the impact of vibration and loss of control during riding.[EASY INSTALLATION]- The bicycle stem is easy to install, Just connect up the bike stem riser to front fork stem. Four bar clamp holds bar securely in position. Increasing the friction between the card slot and the handlebar can effectively avoid the impact of vibration and loss of control during riding.Colour:blackMaterial:Aluminum alloytype:-A012-E70Package Contents:1 x bike stemOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.