Rottefella Xcelerator Pro Classic is Rottefella's top model. The binding is developed  to achieve maximum kicking power, which gives greater speed and more skiing joy. The wide binding house offers better stability and good balance in each kick and optimal power transfer from boot to snow. The unique QuickLock-system allows you to easily, and without tools, move the binding forwards for better control and backwards for improved flow. The binding is set with medium flex which easily can be replaced with harder or softer flex. The flex is a flexible pad which provides bending resistance. It helps you control the skis and gives you a more natural kick and-return cycle. Rottefella Xcelerator Pro Classic was awarded the best cross-country skiing innovation at ISPO in 2016. Rottefella Xcelerator Pro Classic suits classic skis with NIS mounting plate.