i think if he was getting wheelspit or slippage issues because of bumps he'd be smart enough to figure that out on his own. but eh

Is it possible that the rear tire is cocked to the side? I had the same feeling a while back on my ninja 500, turned out I adjusted the chain, and cocked the wheel to the side. The bike felt like it was on ice while I was going straight. A while later I had a very similar issue when I dropped the bike and the forks twisted in the triple trees.

what do you mean "cocked to the side"? like the tire isnt set on the wheel or the axle is cock-eyed? that sounds like a very dangerous situation.

Like the rear tire is not aligned straight. When I first started riding nobody really showed me how to adjust my chain length on my own, so after some reading I tackled the job myself, but I skipped the part where it said to do both sides of the swingarm to keep the wheel straight. After adjusting it a few times the wheel was so crooked in the swingarm that it cause major handling problems.

As for the front wheel, the ex500 ninja has a tendancy when dropped to twist the front forks in the triple trees, causes the rider to want to fight with the bike to keep it going straight

I agree with derf. Check for mechanical wrong.

The problem with the 250 suspension though is that I don't think it has the adjustability.

Yeh chech the cheap stuff first

If this is that black bike you posted pictures of, the tires on that bike are crap. And they're probably 10-15 years old. Get rid of them.

I also wouldn't doubt that whoever spray painted that bike didn't mask off the tires beforehand :lol:

this is where i was going. dont think the suspension needs touched, ur liable to make it worse.

The tires are 10-15 yrs old??????

If tires are that old than you likely found the problem.