How much weight is normal to balance new 20" wheels?

[ard]

Originally Posted by E70x5

Usually when a wheels requires that much weight u have to spin the tire on the wheel. Usually there are "heavy spots on th tire" (meaning where they joined the rubber to make it round) so what most reputable places do is take the air out of the tire and try rotate it around the wheel to counter balance the tire against the wheels. I ur example where they put the most weight they rotate it so it won't be out of balance all on that one point. Tell me if this makes sense. . .

Partially

When you road force, it takes the wheel imbalance and tries to match the flex-imbalance of the tire to 'mask' the wheel imbalance. You essentially need to take the tire, break lose the bead, and rotated the tire around the wheel. The machine calculates how much.

The problem- as rh notes above- is that the wheel will be imbalanced at all speeds, and the tire's "imbalance" is determined by the road force and speed. It may be perfect at the measured speed on the machine, but it much higher speeds you can get vibrations.

I just had a new set of HREs for my Pcar done. They were PERFECT. I paid to have them spun 'naked', runout measured and then tires roadforced. 315 in the rear, 265 front...One tire would not balance under the limit- returned it for a new one. No quibbles. If my wheels were not perfect, or if they needed that much weight, I would have returned them IMMEDIATELY.

A