Originally Posted by bigb11
Rapid Roy, the RATZAS chassis has all the adjustment the other do (140 or 150). the first one had 4 springs attached to the tail section, then it went to tail peices with different thicknesses. remember all pan chassis are wide, this limits the body width, thats why i designed my chassis. it really is not top heavy. i have raced ratzas since the beginning. that why i like them so mucn.

Ok, now I see what you are talking about. That Ratzas chassis is really wide. I haven't had any fitment problems with my Motek chassis. Looking at Penguins site, I see they have chassis with 3 different widths.
I also took a look at Motek's site and they have discontinued the Micro RS4 chassis. They only sell parts now.