Tri-dimensional forging (3D forging) with high inertia modulus cross sections (very stiff) and low structure weight. 6061 T6 aluminium alloy designed for forging components subject to very severe fatigue stress. Kinetic energy surface treatment (Ket) to compress the material surface grain. Wide handlebar clamp to increase handlebar/stem assembly stiffness. Three-fastener clamping bolt. Fork steerer clamp with two widely spaced bolts. Hard black anodized body, silver anodized handlebar clamp, weather-proof bolts and low friction washers. 80 degree rise. 145 grams.