6061 aluminum gravel bars that come in four sizes. ITEM: RA-518DB6-8 ●Lightweight gravel bar made from 6061 aluminum, which comprises aluminum, magnesium and silicone. This combination is proven to increase strength to maximise every ounce of energy, ●while reducing weight for faster cycling. ●6061 aluminum is also renowned for its durability – an essential attribute for gravel riding. ●12° outward bend designed to improve handling. ●The 130mm drop and 75mm reach guarantees you’ll find a comfortable and sustainable hand whatever your hand size and aerodynamic preference. ●‘Oversized’ 31.8mm bar diameter increases stiffness without adding weight. ●Four widths – 400, 420, 440 and 460mm – to fit gravel riders of all sizes. ●Weighs just 305g (440mm) ●Color：Red/Gray