step-thru
n.— «The company plans to produce 1.2 lakh vehicles comprising only “step-thrus” (a cross between mopeds and motorcycles) or “bebeks” as they are called in the Indonesian market and capture a 5% share by 2009.» —“Indian bikes aim at wheelies in Jakarta” by Taneesha Kulshrestha Financial Express (India) July 8, 2006. (source: Double-Tongued Dictionary)