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#4514755 - 09/13/17 01:56 AM Balancing weights, how many is too many?
wrcsixeight Offline


Registered: 10/15/10
Posts: 1752
Loc: california
Recently, I had to buy 4 new tires on a roadtrip.

Cooper Discoverer AT3 30 x 9.5 x 15 Load range C.

Today, I noticed on one wheel, there is a lot of weights on the rim, both sides, in the same part of the rim. This rim is on the driver's side front at the moment. Obviously the New tire itself was way out of balance.


There is a slight vibration beginning about 55mph.

The tires have about 1700 miles on them since they were installed mostly 55mph+ highway miles.

I am several hundred miles away from the tire dealer( not a chain) and unlikely to be in that tiny town again anytime in the forseeable future.

How many weights are too many?

Is a sign of a badly made tire? Dangerous?

The other three New tires do not have very many or very large weights on them, just this one.
The weights on both sides of the rim say 200 100 and 25.
Same sizes and numbers on both sides of the rim. This can't be 11.5 oz of lead on each side so that those numbers can't be grams. I'll guess the weights if they are lead, justging by fishineg weights, total about 2 OZ on each side of th erim.

AnD to surprise exactly nobody, the Lug nuts on the fronts were severly overtorqued. My 220 LBs and a 18 inch breaker bar had to use about 98% of my strength to loosen the lugs. The Lug nuts threads were damaged, luckily the studs were not. On the rears 2 of the 5 on each rim were extremely overtorqued, the three remainders were undertorqued, I'll guess the tight ones were about 180+Ft LB, the looser ones about 65Ft/LB.

I installed all new lugs today using a torque wrench.

Should I just try and get this tire rebalanced or remounted and rebalanced or try and see if Cooper will do anything for me?

There is a red dot on the whitewall side of the tire( which is on the inside) but it does not align with the tire weights. DOT code is 1717 on the tire in question.

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#4514757 - 09/13/17 02:34 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
SnowDrifter Offline


Registered: 08/24/14
Posts: 391
Loc: WA
I think first step would be to get the thing rebalanced. Call around a couple shops and see if any of them use a hunter "road force" balancer. It does a pretty good job of being able to correct for things like a wheel out of round. If you find someone who knows how to really work the machine, ask for a balance accuracy of <0.10oz. There are a few menus you can navigate through the machine to do so. Out of the box it'll round to the nearest .25oz as that's the smallest weight available but there are ways around it if the tech is well versed in operation of the machine

As to your wheel weight numbers, 200=2.00oz, 175=1.75oz, etc.


2oz per wheel falls pretty well average FWIW

Oh yeah and the weights should be made of a zinc or steel. Lead's been phased out for a while now


Edited by SnowDrifter (09/13/17 02:35 AM)

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#4514764 - 09/13/17 02:59 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
wrcsixeight Offline


Registered: 10/15/10
Posts: 1752
Loc: california
Thanks for the info.

There are 3 weights on the rim on each side in the same point on the radius. A 200 100 and a 25 on each side of the rim in the same point on the radius, for a total of 650.

6.5 OZ required to counterbalance this One tire?

It seems and look like an excessive amount of weight added. I assume the slight vibration I am feeling is from this tire. There is one other weight on the inside of the rim on this wheel, I think it is a 50 and about 90 degrees away from the 325.

The vibration at 55Mph did not become noticeable until about 750 miles after purchase. It is slight.
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#4514776 - 09/13/17 04:09 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
Char Baby Online   content


Registered: 05/25/05
Posts: 10087
Loc: ROCHESTER, NY
Yes, have the tire(s) rebalanced.
I have heard(only heard) that there should be no more than 7 weights on a wheel. Now, does this mean only 7 oz? IDK!
What if they're 1/2 oz wgts? IDK that either.
CapriRacer, our tire guru may chime in.
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#4514782 - 09/13/17 04:31 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
Mr Nice Offline


Registered: 09/12/04
Posts: 21375
Loc: Orlando, FL
Yeah, definitely rebalance all the tires.

Not all tire techs are the same and some don't do a good job.

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#4514799 - 09/13/17 05:42 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
copcarguy Offline


Registered: 12/06/12
Posts: 353
Loc: PA
+1 on finding a shop with a RoadForce balancer.

http://www.hunter.com/wheel-balancers/road-force-elite

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#4514851 - 09/13/17 07:13 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
Chris142 Offline


Registered: 06/05/03
Posts: 16978
Loc: Deplorable in apple valley, ca
Sometimes moving the tire 180 on the rim will help.


Edited by Chris142 (09/13/17 07:13 AM)
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#4514852 - 09/13/17 07:16 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
CapriRacer Offline


Registered: 02/22/03
Posts: 3387
Loc: Somewhere in the US
Also, try rotating the tires BEFORE getting them rebalanced. If the problem is the tires, the vibration ought to move. If it doesn't move, then something else is vibrating and the only problem you have is how unattractive the amount of weights are.
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#4514859 - 09/13/17 07:39 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
edwardh1 Online   happy


Registered: 01/17/03
Posts: 3001
Loc: Coastal South Carolina
my guess - bad tire. michelins seem to use small weights
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#4514872 - 09/13/17 07:51 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
LotI Offline


Registered: 01/01/13
Posts: 1300
Loc: America's Dairyland
There is no limit. It takes what it takes.

Yellow dot = heaviest part of tire. Used to be you would put this by the valve stem but that doesn't work on alloys because the stem is where it looks best, not lightest.
Red dot = highest radial force variation. Match it up with the mark on the rim that is the low spot. Again, probably not marked but there could be a punch or sticker on the rim.
If it has both...red rules.

A RoadForce balancer can find these points on the tire and rim, just find a shop that knows how to do it.

Not all companies use both dots and it can vary by plant. My new Continental winter tires had no dots so I had to match mount with a RoadForce balancer from scratch.
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#4514884 - 09/13/17 08:15 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
Driz Offline


Registered: 09/23/07
Posts: 292
Loc: northern NY
You didn't by chance bend a rim did you? It doesn't take much sometime and it would be highly coincidental but.........

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#4514889 - 09/13/17 08:24 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
edwardh1 Online   happy


Registered: 01/17/03
Posts: 3001
Loc: Coastal South Carolina
some places that have aa road force machine dont use it wjhen they balance your tires , cause its slower and takes more work. so ask if they use that feature on the machine
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#4514898 - 09/13/17 08:42 AM Re: Balancing weights, how many is too many? [Re: Chris142]
Bgallagher Offline


Registered: 04/17/12
Posts: 3159
Loc: Boston, MA
Originally Posted By: Chris142
Sometimes moving the tire 180 on the rim will help.


+1 this and a road force balance can make a world of difference. To answer your question there isn't really "too many" weights but that being said I would question the tire or the machine before lining your rim with weights
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#4514935 - 09/13/17 09:19 AM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
JTK Offline


Registered: 08/14/03
Posts: 10661
Loc: Buffalo, NY
I had a similar thread going back in July https://bobistheoilguy.com/forums/ubbthreads.php/topics/4466267/Re:_New_DTD_wheels_for_the_For#Post4466267. On my Subaru, I had as many as 18 stick-on and one clip on weight on one of my factory wheel/tires! Also needed a lot of weight to balance new Walmart Douglas tires on new Discount Tire Direct wheels. 2 months later, all is well. No vibs or weird wear.


Edited by JTK (09/13/17 09:20 AM)
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#4515105 - 09/13/17 12:06 PM Re: Balancing weights, how many is too many? [Re: wrcsixeight]
Kestas Offline



Registered: 06/04/02
Posts: 12400
Loc: The Motor City
My record is 8 oz to balance a tire. Even then you could feel the imbalance of the tire.

The tire had an additional problem of shimmying side-to-side. This was a craigslist purchase. The tires were WalMart Wintermark tires. I'm guessing the set I bought was a customer return at one point for this reason.

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