- Rear: Don't go more than 10 mm over stock. For example, a 130 recommended tire will take a 140 mm quite easily. 150 and higher "may" fit without rubbing parts of the bike, but because the tire is squeezed onto a smaller rim, you increase the rounded profile and can actually lose contact area. It may also cause handling issues.
- Front: Stay with stock size. 10mm over stock will cause the bike to react sluggishly and may rub the front fender.
You can check lateral wheel runout with the wheels on the bike, as long as the wheel bearings are tight. A quick check can be made without a dial indicator by clamping a soft lead pencil to the fork or swingarm so the point just barely touches the rim, then rotating the wheel and carefully observing the pencil point. If there is any significant runout you will be able to see it. You can also use a dial indicator similarly.