Hey I got a ? on the front end. It appears to me the way the suspension is set up that this is the reason for the tires (toing)sp? out.
they really seem to lean in on both sides while riding on a hard surface like the little patch of asphalt we have to cross or even the frozen ground. Is this true on all of these or is something wrong. Doesn't look normal at all.

 

RUn your machine with 1/4" toe in. This will make the tire even when compressed. IF you run them even to start, the tires will toe out upon compression. If your kid jumps and lands on one tire before the other, If it is toe out, the machine can jerk to that side and flip. This is called Bump steer. Some machines do it worse than others. Toe the tire in 1/4" and it should work fine.

 

I hadn't noticed this problem on ours, but I will take a look next time we get it out.

 

I haven't notice this on our SP 90 either unless I am riding it and that is because I am too heavy for it.

With single arm suspension, the tires do lean in on compression but shouldn't on level riding. If the the toe is out substantially, I could see where the tires could be "trying to drive away from each other" and that could cause them to lean in.

 

you guys were right. I checked and the tires were toed out about 3/4in. Toed em in like you said no more problems. Thanks for the help.