mx swinger?

[chris450R]

hey guys! i am just wondering what the standard length or most common length is for a swing arm for mx? i am in college right now and next semester during jan, feb, etc. i will be taking a metal casting class for my major. now since the stock swinger on the 450r is cast aluminum and at our foundary here we use mostly aluminum, i was think about makin my own swing arm. now i have read alot about how the 450R wheelies and needs a longer swinger. well i can whellie it if i want to but can keep the front wheels down if i need to but have never really had a porblem with it doing it alot. and i have also read that some pro's use shorter swing arms. so what is a good length for the 450r for mx?

any help would be greatly appreciated! thanks, chris

[R3Concepts]

+1 for mx.