Would a Banshee be anywhere near a good enough Motocross racing quad? I know it would need to be widened a little, and with 13/40 sprockets, that should help with the lower end gearing... but woul di need to get the gearing changed anyway?

 

Banshee Mx huh? Well I tried racing one MX and did fairly well. You have to be a big and strong person to be able to race a Banshee MX , For one thing you have to be able to hang on and another you have to be able to control the power which very few can do. The closest anyone has come to racing one MX and being successful is Duncan Racing, they seem to have alot of Banshee MX parts. the best set up MX Banshee I have seen is my friends full leager's chassis w/trinity stage 4 engine . Leager's Banshee
Laeger 420 Banshee - full laeger chassis with 250r geometry, pro trax frontend,pep zps front and rear suspension,CR 500 linkage, Trinity 420 motor with chrome trinity pipes, chrome upper and lower arms, subframe, and swingarm, AC Pro pegs. -
The power was way to much for him and he is 6'1" 235 # former state champion wrestler. the tracks are to short for the power the Banshee makes, try racing something else (Drag racing, TT,CC,anything with wide open spaces)with a Banshee is the best advice I can give.
This Quad is for sale by the way http://www.eastcoastatv.com