An appropriate choice for high-power E Bikes, the Electrak Armadillo also performs great with other bikes that can handle this size. The Armadillo construction gives maximum flat protection while supporting the entire casing to handle the rigors that these bikes dish out when roaming city streets. The slightly rough, round profile allows for FAST riding and ultimate grip, along with smooth transitioning into corners. Also a great choice to install on a 29" mountain bike to zoom around town!