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As per title, at what point is it considered too much weight to balance an alloy wheel after the tyres have been fitted?

The reason I ask is because when I had my tyres fitted, the guys told me that one of the wheels needed 120g to balance it and that it must be slightly buckled.

What should I do?

as long as it ballanced up ok and runs smoothly I wouldn't worry, if it were cracked that would be a different matter... they normally take a bit of weight just to overcome the tyre pressure sensors that weigh a fair bit

had mine balanced last week and the chap had to add 100 and suggested a buckle. Still doesn't feel right at 70. Think I'll get him to add some more. Definately not cracked tho. As SteveH says, if not cracked and the vibration is gone, shouldn't worry, just try to avoid potholes!

One of mine needs near 200g - but so long as its on the rear its absolutely fine, and yes it has got a ding in it which you can see!!

I find the only way to balance them all correctly is to have the weights on either side of the rim i.e on the outside edge and the inside. Numerous times they have just put them on the inside (so you can't see them) and I get 'wobble' and have had to go back to ask them to put them on both.

Lig.

So often, tyre dealers don't seem very interested in what they are doing and the market is driven by price which doesn't help on the quality front. If you get a good tyre dealer, stick to them I say. I use Derby Tyres, not always the cheapest but the best around here for sure.

MartynC

Jeez if I had a wheel wonky enough to need weights on the outside edge as well I'd be searching for a new one!!! Just considering for a moment the stresses put through your wheels with a couple of tonnes of your finest VDT on top of them and I dont think running with a knowingly out of true one is a good idea.
Your tyre place ought to be able to spin it and show you how out of round it is, but I'd rather use 4 round ones.

Mine needed 90 grammes. The guy said it was too much and took the tyre off and spun it around on the rim. After that it needed 20g.

In theory, if it's balanced, it's balanced... The real question is when was the machine last calibrated? (which decade often )

I think I've read or heard somewhere that as soon as over 30g was needed, the tyre had to be rotated on the wheel 90 or 180 degrees, but I can't remember for sure...

Yup, thats what the guys did with my Assy F1's, one wheel was really bad, and they kept turning the tyre thru 90 deg until they got it as good as they could. They recomended that i bought a new wheel, but as a set of bimoto's was on the cards at the time i dnt bother...... should have, our new house has eaten all my toy money

Cornishmoocher wrote: should have, our new house has eaten all my toy money

The only thing that can eat money faster than an RS6