Rupp's minibike offering in 1963 was the Dart Ridge Runner, classified as a trail scooter. The Honda Ape is a minibike sold in the Japanese market. Other types of small motorcycles include the monkey bike, Welbike, and minibike. These hand-built machines were directly responsible for the creation of the Minibike Market. There are also Minibike sport mopeds; for example&colon; Honda NSR50 and Yamaha YSR50. The minibike was assisted by local engineer, Council Tucker, of Glendale, CA. It is a minibike distinguished by a pressed-steel "T-bone" frame, and equipped with folding handle-bars.