I'm assuming the rear is the widest point at 43.3 inches??? or is that the front? and what is the other dimension, f or r ?

 

Both the front and the back are approximately 43". I checked my 400ex and its front is about the same width as the front of the Raptor but the rear of the 400ex is a little over 2" wider than the Raptor. I'm trying to locate some Razr's. (everyone with good prices is out of stock...) They will give me an extra 1" (overall) to the rear and I'm also buying the 1" High Lifter rear spacers. That will put me around 46" for the rear of the Raptor vs a little over 45" for the rear of the 400ex. I'll let everyone know how it handles.

 

cant wait to find out

 

I put Razrs on my Raptor and it handled way better, not as tippy, even less tippy then my roommates Z400, but then I got a Dura blue 2+2 axle and shreaders on the rear, now it is almost 49 inches wide in the rear and handles like a new quad. We raced the other day around an oval track and he rolled the z 2 times tring to keep up with me in the corners.

 

Did you do anything to the front end?

 

At first I had Offset Douglas wheels in the Front, It was about 49 inches wide with them too. It also made a big difference, but was a little too wide for some or the trails I ride, so right now the front is stock except for the shredder tires. It works for me, i can still out turn my buddies Z. If I ever do anything to the front again it would probably be 1" spacers or a set of +2 a-arms maybe. I like the current set up though so I am not sure if I am gonna change it.