Lightweight carbon construction the vitesse evo features a lightweight t700 hm ud carbon construction with tubesets optimised to deliver the perfect balance of power transfer and comfort the oversized downtube features a squared profile to maximise stiffness and power transfer the huge bb386evo bottom bracket and oversized chainstays improve lateral stiffness to ensure every ounce of energy is transferred from the rider to the rear wheel whilst the slender seatstays profiled top tube and 272