Mini moto......4-5" rims and tires............
Midi-moto............6-6.5" rims/tires..............
The most expensive pb's are The GRC,Polini,BiZeta,Blata......The ones I have the most fun with are the cheap chinese cags.....Theyll never be as powerful as a phantom or GRC but they are a fun hobby and good for someone not looking to race...............Good luck

Midi-moto............6-6.5" rims/tires..............

The most expensive pb's are The GRC,Polini,BiZeta,Blata......The ones I have the most fun with are the cheap chinese cags.....Theyll never be as powerful as a phantom or GRC but they are a fun hobby and good for someone not looking to race...............Good luck