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Old 07-28-2009, 08:47 PM   #1
fivestringslinger
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06 Triumph Speed Triple

Default Odd wheel weight placement?

This last Friday at work I put myself on the schedule to get my oil changed. My tech came into the office in the middle of it and said he'd like to rotate the tires too. Gave him the green light and he did.

On the way home, I hit the highway and I noticed a pretty heavy vibration (feels like it's coming from the RF). Worst between 68ish-75. Figured they just needed to be balanced. Following morning, I took the car to a local tire place. They balanced out the fronts for me and I was on my way. They said the fronts were indeed out a little bit.

For the rest of the weekend, I never did any highway, so I never got up to the problem speed. Past couple days on the way to and from work, though, I've still got that vibration. I took a look at the fronts and here's what I've found:

LF: You can see where an old weight was taken off the outside edge and a new one hammered on an inch away. Nothing unusual in sight.
RF: No evidence of where an old weight was removed. There are two weights on the outside. They're positioned in a roughly 11 and 2 o'clock orientation to eachother. This seemed odd to me.

Bounced it off a couple of the guys at work and they said there are times when such an orientation is required. Still doesn't seem right. Unfortunately, we're so busy at work that I can't get myself in on the schedule this week to try and balance them out on our machine.

I've eliminated drivetrain as a possible cause. Once I get it to start doing it and I push in the clutch, it continues.

Does it sound like improper balance? Or could I be looking at something along the lines of a bad tire or a tweaked wheel? Whatever the case, it's driving me nuts. I commute an hour each way to work every day and half of that is highway when the average speed is 70-75 if you don't want to get run over by traffic.
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Old 07-28-2009, 09:04 PM   #2
flukewrx
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Wait, so are the wheel weights right next to each other (like almost connected) or are they spread apart?

When I worked at Wheel Works I know that if we didn't have a particular wheel weight then we would put two of them side-by-side to make the correct weight.

Did you bend your wheel or have any damage to those front wheels?

You might want to post up a picture so we can see what you are seeing.
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Old 07-28-2009, 10:44 PM   #3
vica153
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2 weights on the outside, in separate spots? Any decent tech would get it right with one weight. Unless there is something wrong with the wheel/tire, 2 weights is a red flag. Using 2 weights and still not getting it right, fail.

The wheel could be bent and if it was in the rear, you might not have noticed.
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Old 07-28-2009, 11:42 PM   #4
fivestringslinger
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No. The weights are spread apart on that RF wheel. If you were to think of the wheel as a clock face, you have one weight in the 11 o'clock position and the other in the 1 o'clock position. They're spread pretty far apart.

I've balanced tires before where I've had to use a pair of .25 weights butted up against eachother because we were out of .50's...but nothing like this.

As for the wheel itself, there doesn't APPEAR to be any damage to it. No curb rash or curled edge that would be evidence of a bent rim. I'm going to see about getting it rebalanced by one of my techs at work and see what happens.

Hopefully that'll be the end of it. Just wanted to confirm my suspicions and make sure there really are no grounds for weights being placed as they are. Thanks guys. Will update...
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Old 07-30-2009, 08:18 AM   #5
dbrier
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Or the tech was very lazy and just threw the wheel on the balancer for a rebalance and just added the weight instead of starting over.
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Old 08-01-2009, 01:13 AM   #6
fivestringslinger
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06 Triumph Speed Triple

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Quote:
Originally Posted by dbrier View Post
Or the tech was very lazy and just threw the wheel on the balancer for a rebalance and just added the weight instead of starting over.
^^^^^
This. Sho' nuff. Very end of the day today I had one of my techs balance just the RF real quick and he said it was WAY off. He pulled off both weights and was able to balance it out with one inside and one outside. Nice and smooth on the ride home.

Guess I know where NOT to bring my car again ever.
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