Once again, good luck with your purchase I wouldn't nessassarly say the questions you asked are dumb, but just pick up a copy MXAs Bike shootout and all quesstions about all the bikes will be answered Also, just this one last thing, I reccomend you stop by boarders and buy this book, it's helped me a ton, I vowed to reccomend it
http://www.amazon.com/Pro-Motocross-Off-Road-Riding-Techniques/dp/0760318026
Its a bit old, but really useful, mine has been passed around endless times to friends
Thanks for that I'll take a look ! I read the reviews, sounds good ! I'll do that. I'm lucky actually there are quite a few tracks round where i live