Pedelec
More powerful e-bikes , such as the S-Pedelecs and "power-on-demand" e-bikes ( those whose motors can provide assistance regardless of whether the rider is pedalling ) are often classified as mopeds or even motorcycles with the rider thus subject to the regulations of such motor vehicles , e . g . , having a license and a vehicle registration , wearing a helmet , etc . 
<triplet> Pedelec <subj> e-bike <obj> subclass of