Balancing. How much road force is too much?

How many pounds road force do you think is too much when balancing?

I had a few Duractracs mounted to some Mickey Thompson Classic IIIs today. 2lbs, 17lbs & 25lbs. The 4th wheel had a flat spot so I need to send it back (Summit Racing customer service is great BTW).

 

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I think this might partially answer my question from today's balancing act at the tire shop. They told me they were having issues road force balancing one of my tires. Supposedly three of them were 10 or under but the 4th was 49. I didn't know what that meant.

 

Did they try to turn the tire on the rim and rebalance to get it any lower?

 

Yes. They said that was the best they could get it. They told me to drive it for a few days and if it bothered me they would contact Cooper to see if they would warranty it and give me a new tire. I will most likely have them do it sometime this week. Just knowing one is so far off the other three is bugging me. From what I have read on the internet today, anything above 30 lbs is considered out of spec according to most car manufacturers.

 

Any vibrations with the 49 lbs?

I got my last tire mounted and balanced and put on the truck. 2, 17, 24 & 25 lbs. No vibrations at all. Truck rides great.

 

Just got mine done and the guy at the tire shop said they were all between 12 and 15 psi.I saw some markings on the tires that tells me they moved them to get a good balance.

 

Hunter says 25 lbs. is the threshold. I've noticed vibration at 23 lbs.

Start at Post #2 here, it from one of the engineers who designed the Hunter RF machine and also owns a 1st gen Tundra: