Hi Jessen
Firstly as for a cheap bike try this one out click on this link
http://www.pocket-bike-racing.com.au...-cag-fs-2.html
At $250 it's a bargain ..the tyres alone are over $200. I can vouch for this bike and its owner too ! Bike is in mint condition. The owner lives in Adelaide I can Pm you his Phone number if interested.
Secondly.. As for racing ,we are having an Endurance race at the pits this Saturday 3rd 2009 ..you are most welcome to come down and we might be able to team you up with someone on a bike as this is team x2 event.As for the rest of the years racing I can keep you up to date via this forum or you can go to The South Australian Minimoto Racing Association "SAMRA" web site..just click on my signature or go to adelaideminimoto.com.au
I hope this helps Cheers Andrew President SAMRA