Measure for length (I'd give them a call to make sure about the model)
http://www.powersportsmax.com/index_...p/tID/3/bID/36
(the one dead center second from the bottom marked "ZN150T9" looks like it maybe the one)
http://www.powersportsmax.com/index_...th/292_307_332
Puma calls their's the Apache, and parts are available
http://www.pumacycles.com/Apache-50cc--amp;-150cc.html