My moto has a pull to the left goin down the road. It's had it for awhile, I put new swingarm bearings in it shortly after I got it, and it still does it, has to be in the rearend because it'll so it if you pull the front wheels up. Any ideas ?
simplest thing is check your tire pressure in you rear tires and make sure their the same or if one rear tire has even a little more tread it will pull toward one side. I would also jack up the rear end and make sure the axle isn't moving in the carrier or else you need to replace the carrier bearings.
I heard years ago that when you inflate quad tires, you not only go by PSI,but then you fine tune by circumference. Using a fabric tape measure or a string. That usually prevents pulling to one side.