funny that this thread came up, I was just thinking about posting about this same topic the other day... well I was doing some research on these bikes and I just won an auction on ebay for a 47cc bike on Sunday and with shipping it only came to $215 which is a steal .. at least I think.. lazy people not paying attention to ebay on a Sunday I guess and I got lucky.. I should be getting my pocket bike on Friday so I have a new toy to play with this weekend..
I did some research and found out that the true original pocket bike that is the newest racing craze in Italy are the 47cc - 1 foot 4 inch tall bikes and not the bigger 49cc bikes... the 47cc bike is actually faster than the 49, because the 49 is much bigger and weighs a lot more since most of them have headlights and tail lights and stuff ... the 47cc bikes weigh about 40 pounds while the 49cc bikes weigh as much as 80 pounds
Here's a link to the guy who's auction I won... he sells a ton of these bikes and has plenty of positive feedback... I think ebay is definetly your best and cheapest option for a pocketbike...
After I get mine and play with it this weekend i'll let you know my reviews... anyone else that has one, lemme know if u wanna have a pocket bike meet and some pocket bike races!