I love these things. They seem to balance better than traditional weights, with the added benefit of no ugly wheel weights on your wheels. I put about 2 ounces in a motorcycle rear tire and it rides perfectly smooth. You will never know that there is anything but air in a tire. Definitely a much easier balancing solution when working outside of your garage. Make sure you have a tiny funnel to pour them into the tire, or do what I did: use an old bottle of gear lube with a clear vinyl tube. the end.
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