Floppy or stiff
 

So, why is the XXX made of flexible plastic and the XX4 is made of stiffer then stiff graphite? Been thinking about this, wouldn't you decide that one direction is the best and go that way? :confused:

G

2wd needs to keep compliancy in the chassis to make it easier to drive, a 4wd needs the stiffness to get the power down.

Well a more flexible chassis the car will absorb the bumps on the track better than a stiffer chassis. I personally run a stiffer chassis, I don't like flex in my car.