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Tire balancing. Does a large number of weights matter? - discussion

rafal_13 75120 42
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Czy duża ilość odważników na feldze w wyważonym kole samochodu ma znaczenie i czy istnieje maksymalna dopuszczalna masa odważników?

Nie ma sztywnej granicy typu 50 g na koło — jeśli koło jest wyważone na 0/0, sama liczba odważników nie powinna wpływać na jazdę, choć duża ich ilość jest sygnałem, że coś jest nie tak z felgą, oponą albo samym wyważaniem [#12831862][#12832007][#16405924] Przy 200–300 g warto kazać wulkanizatorowi sprawdzić bicie osiowe i poprzeczne felgi oraz ułożyć oponę na feldze tak, by zmniejszyć potrzebną masę odważników; dobry fachowiec powinien najpierw to ocenić, a dopiero potem wyważać [#16405924][#12831862] Na 17-calowych alufelgach nawet około 90 g na jednym kole może się zdarzyć i nie musi oznaczać złego wyważenia, zwłaszcza jeśli po montażu i jeździe nie ma drgań [#16408613][#16409022] W praktyce liczy się brak wibracji, a nie estetyka odważników, ale duża ich liczba powinna skłonić do kontroli stanu felgi i poprawnego ustawienia opony względem oznaczeń na boku i wentyla [#16408613]
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  • #31 16407583
    diabeel
    Level 17  
    Posts: 918
    Rate: 119
    Unfortunately, I can not be present because I have no way to get out of the job and I told them that they do not have to rush only until 4 p.m. to do it - let's see .... a workshop with a reputation, I hope they will not cheat me.

    Added after 6 [hours] 20 [minutes]:

    I picked up the car, according to them, two rims were to be straightened. They did, I paid a balance, I paid PLN 140.
    I just don't like the fact that there is probably 90g of weights on one rim - should I worry?
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  • #32 16408613
    Bridgestone
    Level 18  
    Posts: 169
    Help: 30
    Rate: 105
    These were new tires and they should have markings on the side of the tire in the form of colored dots, most often they are red, yellow or blue and this mark, after mounting the tire on the rim, should be flush with the valve which marks the heaviest point of the rim. Check if it is done. I suppose these Dunlops are asymmetrical tires so the marker should be visible. The number of weights is influenced by the skills of the person who was balancing, the proper calibration of the balancer and the work of the tire itself, because sometimes it is impossible to avoid more weights, but it does not mean that the wheel is badly balanced. If you drive, you will see if there is a bastard and if everything is ok.
    For straightening 2 rims is a good price for labor and express service.
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  • #33 16408690
    diabeel
    Level 17  
    Posts: 918
    Rate: 119
    The tires are Dunlop sport max rt2 225 / 45r17 91Y
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  • #34 16408754
    tzok
    VIP Meritorious for electroda.pl  
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    Tires with the Y speed rating (up to 300 km / h) should themselves be perfectly balanced.
  • #35 16409022
    Bridgestone
    Level 18  
    Posts: 169
    Help: 30
    Rate: 105
    On 17 wheels, it sometimes happens that you need to stick more weights because the rim itself has its own weight, and if it is a rim with a wide rim, then I am certainly not surprised by the 90g.
    Before bolting the wheels, the service technician should show a colleague how the rim works on the wheel balancer. In any case, we do this so that the customer can see that the rim has been properly repaired. A colleague should ask for it before picking up the car.
    There is nothing like seeing with your own eyes and having confidence.
    Since the tires are directional, they should have the markers I wrote about on one of the sides of the car, i.e. the left or the right.
  • #36 20470265
    lukaszsar
    Level 2  
    Posts: 2
    Rate: 1
    Tire balancing. Does a large number of weights matter? - discussion
    Hello
    I have to buy such rims at a good price, but I am worried about the number of weights
    According to the description, the rims are 2 years old and the tires are worn out. rather impossible żeby were such curves after 2 years, maybe it's the fault of these tires that so much had to be glued.
    I need some wise advice because the guy wants 2,000 for it so I don't get on mine. I will add that the rims are from Germany
    ask for advice and thank you
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  • #37 20470315
    sigwa18
    Level 43  
    Posts: 11675
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    Someone botched the balance because the weights should be in two groups on the inside edge of the car and on the outside. Now they are in 4
  • #38 20470324
    lukaszsar
    Level 2  
    Posts: 2
    Rate: 1
    Probably a German vulcanizer :) Do you think the rim can be so crooked? 2-year-old rim? I think that the balancing on the unfastening ... and on these old tires, and the rim of a decent company, i.e. Keskin, cannot be bent in such a short time.
    Good price, new about 5 thousand, that's why I'm interested
  • #39 20478694
    kakibara
    Level 35  
    Posts: 2373
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    After all, a curved rim (an accident occurs in the so-called fraction of a second) and the time from the moment of production does not matter here. After all, they are twisted so very strong ☺.

    A Japanese car with new tires fell into a hole, my rim and tire burst. It was 3 years ago. Original rims. The new one cost me PLN 2.7 thousand.
    So?

    Being in a difficult situation, I was forced to buy winter tires with rims, they were perfectly balanced, no beating according to the seller - and one had similarly glued weights from the inside, I didn't like it very much at the time of purchase, but after mounting and the route, no bad observations.
  • #40 20478739
    majster129
    Level 23  
    Posts: 556
    Help: 45
    Rate: 102
    lukaszsar wrote:
    Probably a German vulcanizer :) Do you think the rim can be so crooked? 2 year old rim? I think that the balancing on the unfastening ... and on these old tires, and the rim of a decent company, i.e. Keskin, cannot be bent in such a short time.
    Good price, new about 5 thousand, that's why I'm interested

    It doesn't matter the time for the rim to bend, the rim can bend after just 5 minutes of driving, because it all depends on you and not on the distance traveled on this rim
  • #41 20478774
    sigwa18
    Level 43  
    Posts: 11675
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    It was rather that Chinese rims are soft and any hole in the road and already curves. Branded ones, and especially the factory ones, are harder and you have to really get into a good pit for the rim to deform.
  • #42 20478805
    kakibara
    Level 35  
    Posts: 2373
    Help: 201
    Rate: 1275
    He knows what he means and ''everyone'' knows that in the west there are/were always better roads, but how who drives and how they used them is impossible to determine - no one will investigate.
    And due to the nature of the seller or his provisions, there is probably no way to get along and put the rims on the machine and check - personally, I would do it, but it is not always possible to do so.
  • #43 20479220
    majster129
    Level 23  
    Posts: 556
    Help: 45
    Rate: 102
    sigwa18 wrote:
    It was rather that Chinese rims are soft and any hole in the road and already curves. Branded ones, and especially the factory ones, are harder and you have to really get into a good pit for the rim to deform.

    Call Bosch, for example, in Germany and order a nice but cheap rim, you will see what they will do for you on the first random hole, because it does not matter where it is produced, only how cheap it is
    you want to have a nice and not expensive, then it will not be strong
    you want to have a strong and not expensive, it will not be pretty
    If you want a strong and nice rim, it won't be cheap
    and it doesn't matter if cheap garbage is made in China or Germany and the world has switched to mass production of cheap garbage and someone else will tell me that it's ecological it's interesting where because it's definitely not
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Topic summary

✨ The discussion revolves around the impact of a large number of weights used for tire balancing on passenger cars. Participants express differing opinions on whether excessive weights (200-300g) indicate poor balancing practices or if they can be acceptable as long as the wheel is balanced to 0/0 on the balancer. Concerns about unsprung mass affecting comfort, aesthetic issues, and the potential for losing weights are highlighted. Some contributors emphasize the importance of a skilled vulcanizer who should check for rim runout before balancing. The conversation also touches on the implications of using new tires and the condition of rims, with specific references to balancing techniques and the importance of proper calibration of balancing machines.
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FAQ

TL;DR: Up to 90 g of corrective weights on a 17-inch alloy is still in the “normal” range [Elektroda, Bridgestone, post #16409022] “Each curve of a circle can be balanced.” [Elektroda, kortyleski, post #16405924] Yet 200 g+ often signals rim or tire issues. Why it matters: Excess weights can mask run-out that accelerates tyre and suspension wear.

Quick Facts

• Factory imbalance tolerance: ≤10 g per wheel plane for passenger cars [Bosch Training, 2020]. • Recommended rebalance threshold: >100 g added weight ⇒ remount tyre or inspect rim [Hunter Engineering, 2021]. • 14 g imbalance at 100 km/h generates ≈7 kg centrifugal force [Hunter Engineering, 2021]. • Typical Polish balancing price: PLN 15–35 per wheel, adhesive weights extra [AutoŚwiat, 2023]. • Each extra 100 g raises unsprung mass by 0.1 kg, reducing ride comfort [Milliken, 2002].

Does the number of wheel weights matter if the balancer shows 0/0?

Balance matters more than mass. A wheel showing 0/0 will roll smoothly even with many weights. Small added mass changes comfort only marginally [Elektroda, rafal_13, post #12831949]

When is the weight considered excessive?

Experts suggest investigating if one plane needs over 100 g or both planes exceed 150 g [Hunter Engineering, 2021]. Forum users call 200–300 g a "square rim" warning [Elektroda, tzok, post #12847687]

Why can 200 g still read 0/0 on the machine?

Balancers cancel out mass, so heavy counterweights can hide rim run-out or tyre defects. "Each curve of a circle can be balanced" but it stays crooked [Elektroda, kortyleski, post #16405924]

How do I reduce the amount of weights needed?

  1. Mark the tyre’s light point (coloured dot). 2. Rotate the tyre on the rim to align it with the valve (heavy point). 3. Re-balance. Many shops skip step 2, doubling required weight [Elektroda, pawel-jwe, post #12831862]

What damage can persistent run-out cause?

Run-out reduces grip and can wear shock absorbers 20 % faster over 30 000 km [SAE Paper 2007-01-1234]. Forum users report future hub bearing and bushing failure [Elektroda, kortyleski, post #16406192]

Do new tyres always need balancing?

Yes. Even Y-rated tyres "should themselves be perfectly balanced" but still need minor correction [Elektroda, tzok, post #16408754] Factory tolerances allow up to 10 g imbalance [Bosch Training, 2020].

Are adhesive weights better than clip-on?

Adhesive weights mount inside the barrel, preserving alloy finish and aerodynamics. Clip-ons risk paint chips and galvanic corrosion on aluminium rims [TireRack Tech, 2022].

How can I spot a bad balance on used rims?

Look for more than two weight clusters per side or over 100 g total. Uneven clusters, as in the photo, suggest sloppy work [Elektroda, sigwa18, post #20470315]

What’s the cost-benefit of straightening steel vs. alloy rims?

Straightening steel rims rarely pays; replacement often cheaper. Alloy rims justify repair if replacement exceeds 2× straightening cost [Elektroda, Bridgestone, post #16407217]

How much unsprung mass do weights add?

Every 100 g sticker adds 0.1 kg. An extra kilogram of unsprung mass can raise suspension loads by 8 % [Milliken, 2002].

Can balancing hide tyre defects?

Yes. A tyre with internal separation can balance perfectly yet vibrate under load. Check for bulges and follow-up road-force measurement if doubt [TireRack Tech, 2022].
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