I have a KX500 l.c. powered Blaster. It is an absolute beast. It's set up for ice racing, flat track only. I run the SMS +5, +1 a-arms, a +2 Banshee axle, custom +4 swinger, 400ex rear shock (mounts relocated to lower quad), YFZ450 front shocks (w/lowering brackets) and Fasst Flexx bars to temper the vibrations.