Product Details: Rock-solid stem and faceplate made from 3D forged 6061 aluminium, a combination proven to increase strength without a weight penalty Theforgedmethod of manufacturing is significantly stronger thancastbut requires less material, resulting in a stiffer and lighter stem Because correct stem length is vital for a comfortable bike position and good handling, the CLS stem comes in various sizes Easily flips to give a 5° rise or drop depending on your aerodynamic ambitions SCM-435 steel bolts adds further strength while offering a secure fit Fits 28.6mm steerers and 31.8mm bar clamps Weighs 110g (100mm) Key Features: Made for road racing, sportive riding and cyclocross Material: 6061 forged aluminium Bolts: SCM-435 Rise: +/- 5º Clamp Diameter: 31.8mm Steerer Clamp: 28.6mm Stack Height: 40mm Weight: 110g (100mm option   Reliability: Controltech USA knows the combination of sound engineering and high-quality materials practically guarantees the lifelong performance