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From the Dyna-Bead site:If you're gonna use them, keep a tire valve tool in your toolkit. This picture is from a friend. The same thing happened to him twice.
Just a FWIW - Steve, it might be useful to read the Motorcycle Consumer News article, and then letters/replies on Dynabeads. Their conclusion was they are granular snake oil.. doing little of any value. I would tend to agree with them, despite anecdotal claims that they "work".. Dynabead also seemed to think (1) that they'd provided MCN with the product (2) that this entitled them to a positive review. They were wrong on both issues.
Steve,Well, still doing my research. I found the MCN article and considering the principal the Dynabeads use, I'm not too sure of the value of the MCN test.
I just have my tires balanced and forgeddaboutit.. but mebbe I'm just old-fashioned.What concerns me more is the disclaimer from Dunlop - I've read it copied but haven't read it on their site yet - too little time - that if you use Dynabeads, you void their warranty.
Obviously, it's going to take some time to make a decision. I'm in no hurry.
Thanks Don.
something about weight moving to the light spot on a rotating mass just doesn't seem to work for me. I believe MCN also had a bit of a problem with that theory.
As well they should... that's not the theory behind how the beads work.
The beads do nothing to balance wheels/tires. What they may do is balance the effect that an out of balance wheel/tire has on your suspension. It is the up/down of your suspension that may be balanced, not the rotating wheels. Without a moving suspension the beads do nothing.
Note: I don't use them and likely never will for various reasons. I just wish that someone who understood what they were supposed to do would rig up a reasonable test. Putting a wheel with beads on a spin balancer that measures axle strain does only shows that the people running the test (yes, I'm talking about MCN) are clueless about how the beads could work. It doesn't help that the beads are marketed as something that will balance your wheels/tires. They can do no such thing.
The moving suspension part is fine - but a heavy spot will try to move outward harder then a light spot - so when the heavy spot crosses the movement axis of the suspension - the wheel will tend to move up (if the heavy spot is UP) or down (if the heavy spot is down.)As well they should... that's not the theory behind how the beads work.
The beads do nothing to balance wheels/tires. What they may do is balance the effect that an out of balance wheel/tire has on your suspension. It is the up/down of your suspension that may be balanced, not the rotating wheels. Without a moving suspension the beads do nothing.
Actually IMHO - that's a good test. The "spin balancer" actually measures displacement forces on the center axle going through the mounted wheel. It does this when the wheel is MOVING - not when it's stationary.Note: I don't use them and likely never will for various reasons. I just wish that someone who understood what they were supposed to do would rig up a reasonable test. Putting a wheel with beads on a spin balancer that measures axle strain does only shows that the people running the test (yes, I'm talking about MCN) are clueless about how the beads could work. It doesn't help that the beads are marketed as something that will balance your wheels/tires. They can do no such thing.
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That's a given. What isn't a given is exactly HOW and WHY the Dynabeads would tend to go to the opposite side from the movement to counteract the movement.
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