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Buell Forum » 1125R Superbike Board » Archive through October 12, 2013 » How many weights on your front wheel? « Previous Next »

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Thefleshrocket
Posted on Tuesday, September 17, 2013 - 12:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've been relying on Dyna Beads to balance my tires, but my 1125's Power Pure has always felt like it's out of balance anyway. I decided to pull the tire and balance it with weights. (I'd never done it before and was hesitant to try. Silly me--it was very straightforward.) I ended up adding 9 x 1/4oz weights, almost opposite the vale stem, to get the tire balanced. (8 weights was a bit too little, 9 weights was a bit over.)

I added the Dyna Beads after the weights to compensate for the 9th weight being a little too much. Dyna Beads recommends 1-1.5oz of beads, so it makes sense that the beads weren't able to fully compensate for a tire that needed 2 1/4oz of weights.

2 1/4oz seems like a LOT of weight. How much do you guys typically need to balance your front tires?
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Larryjohn
Posted on Tuesday, September 17, 2013 - 01:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've used up to six at a time. I also try to balance the wheel with the tire off to find the heavy spot on the wheel. Tires are typically marked with a heavy spot (red dot) or light spot (yellow dot). You can use these markings to offset the heavy/light spot on the wheel which should minimize the number of weights needed to balance the wheel/tire combo.
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D_adams
Posted on Tuesday, September 17, 2013 - 01:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is the dot or circle lined up with the stem?

If it's out too much, I'd break the tire down again and spin it 180 degrees and check it again. I can't remember the last time I used more that 1 oz (4 weights) on a bike tire unless it was the rear, even then, never more than 1.75 oz.
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Froggy
Posted on Tuesday, September 17, 2013 - 01:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yea 9 weights does sound high. Even with my tire pressure sensors adding to the stem I still have only like 4-6 weights on the wheel. Without sensors I can't say the last time I needed more than 4.
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Thefleshrocket
Posted on Tuesday, September 17, 2013 - 02:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There isn't any dot on the tire to indicate the heavy spot. (I've seen them on previous tires, but this is the first and only set of Power Pures that I've used so I don't know if they typically do have the dot.)

I'm inclined to think that my front tire just has an overly heavy spot somewhere. The last front tire I used was a Power 2CT and it was just balanced with 1oz of Dyna Beads and it felt smooth.

Since the front tire seems to feel fine after balancing, I'm going to leave it as-is for the time being, but will be sure to rotate the tire for optimum balance before installing weights the next time I change tires.
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Jdugger
Posted on Tuesday, September 17, 2013 - 03:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

This happens from time to time. Rotate the tire 180 degrees.
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99buellx1
Posted on Wednesday, September 18, 2013 - 09:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can always cut the weights if you don't need a full one, a pair of side cutters will get through them just fine, they aren't that strong.

Sometimes the dot is on the inside of the tire.
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Pwillikers
Posted on Wednesday, September 18, 2013 - 11:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Three points:

1. Dynabeads... I'm not a fan.
"Motorcycle Consumer News wrote such a scathing review of Dynabeads that the president of the Dynabead company wrote a scathing letter to the editor back to MCN. MCN stood by their conclusions and berated their president for using no empirical data when criticizing MCN's data-supported analysis."

2. I've never come close to 2.25 oz. wheel weights when balancing (many) tires. I suspect something is awry.

3. The last several Michelin tires I have mounted have required no weights whatever to achieve balance (I balance the wheel with no tire mounted prior to mounting the tire.) In contrast, in my experience, Pirellis are particularly unbalanced.
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Zac4mac
Posted on Thursday, September 19, 2013 - 10:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Another thing happening here.
California has declared lead a dangerous carcinogen so tire weights are now zinc or steel.
one lead = 2 steel = 3 zinc or something like that...

I bought a box of lead weights from No-Mar a couple of years ago when our weights at the Harley shop went to steel.

Z
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Spike240sx
Posted on Thursday, September 19, 2013 - 11:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ya, That seems way too heavy. Do as others have stated and rotate the tire 180.

Also, I would never use Dynabeads in a sportbike Wheel.
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Sir_wadsalot
Posted on Friday, September 20, 2013 - 11:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Stupid comment- A 1/4oz weight weighs 1/4oz no matter what it's made out of...right?

Nine weights is insane, something is wrong. Five is a lot, I've got like, three, and have never had more than four.

Something's awry, sir.
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Reepicheep
Posted on Friday, September 20, 2013 - 11:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How did you know "the wheel was previously balanced" with 1oz of dynabeads.
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