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Post by hank on Apr 24, 2013 12:05:47 GMT -5
They work on a good tire and rim however if the rim or tire are not true then the beads can't correct that. The best way to determine if there is anything wrong with the tire or rim is by putting them on a spin balancer and allow the computer to run its diagnostics however at that point you may as well just put the weights on. True However, sometimes we gotta make the 'assumption' that the rim is true and it's just an out of balance (vs out of round) situation. Just adding another alternative, as I haven't seen them (dyna beads) mentioned on here. Thanx Dave Hi I use Dynabeads on a few of my vehicles and they work as advertised and imho very well Take care and ride safely my friend Yours Hank |
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Post by prodigit on Apr 24, 2013 14:21:39 GMT -5
I can only presume that the guy (about self-balancing tires) meant, that the tires have some adjustment it can do in a rim. If the rim is not 100% balanced, the tire can crawl under the rim a bit further, and extend on the other side a bit; and balance out the unevenness.
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Post by scootnwinn on Apr 24, 2013 14:26:32 GMT -5
Where do you get these crawling tires?? Amazing.
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Post by yelloscoot on Apr 24, 2013 22:36:24 GMT -5
I have new tires to install this weekend. Bought Dyna-Beads last year but never used them. They will be going in the new tires finally. I'm hoping the good reviews are true.
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Post by bvance554 on Apr 24, 2013 22:46:10 GMT -5
I once heard that putting a little tire Slime or whatever its called in the tire can help balance out a scooter tire. I've been tempted to try this.
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Post by prodigit on Apr 25, 2013 1:17:39 GMT -5
Where do you get these crawling tires?? Amazing. No idea... But how else would you explain how a front tire that vibrated so much ~37-50MPH that there was more sideway oscillation in the handlebars, than the tolerance on the throttle? So much even, that the first time I rode 43MPH, I had to grip the throttle quite hard, not to have my hand vibrating off. It was DANGEROUS! However, after only a few 100kms riding, the wheel felt much better. Now it barely osscilates between 39 and 43MPH, above that I don't really notice it anymore (might still be there though) |
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Post by scootnwinn on Apr 25, 2013 9:42:24 GMT -5
But how else would you explain how a front tire that vibrated so much ~37-50MPH that there was more sideway oscillation in the handlebars, than the tolerance on the throttle? Dangerous uneven wear... |
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Post by prodigit on Apr 25, 2013 11:12:33 GMT -5
But how else would you explain how a front tire that vibrated so much ~37-50MPH that there was more sideway oscillation in the handlebars, than the tolerance on the throttle? Dangerous uneven wear... Which will even out in ~200km's? I believe the tire seats on the rim, but can move (like without air it might fit tight, but as soon as there's pressure in the tire, it has a few millimeters play going up/down/left or right on the rim; as the edges lift up a bit, and get stretched and pressed against the inner wall. One millimeter may perhaps be enough to balance the tires... |
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Post by rockynv on Apr 25, 2013 12:02:12 GMT -5
That would be a stretch but if the tire was not centered properly or really beat up when they mounted it it might after a few miles slip into place but the tech mounting the tire would have to be really, really bad at it.
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Post by prodigit on Apr 25, 2013 15:34:08 GMT -5
That would be a stretch but if the tire was not centered properly or really beat up when they mounted it it might after a few miles slip into place but the tech mounting the tire would have to be really, really bad at it. I'd accept that as a possible reason; however in those chinese factories, the tires just get popped on, and a huge compressor blows up the tires to 40-45PSI in an instant; I'd say that's one good plausible reason why tires do not seat well. Normally you blow up the tire, let it seat properly, and then increase the pressure to like ~35PSI. Why 40-45PSI? 1- Because it's the tire's first use, so they might stretch a little, and lose a little pressure. 2- Because it's chinese. Everything is on a time table; and instead of verifying the pressure, they just pop the compressor in there, for an x-amount of seconds, without verifying how much air actually went in there. The front tire I received out of the crate was pumped up to 42PSI, though only rated at 35PSI max. |
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Post by shalomrider on Apr 25, 2013 17:31:01 GMT -5
howdy, i don't know on a scoot, but on a car sometimes you can raise the tire off the ground and see by watching whether a heavy spot seeks the bottom, then move it  % and let it loose and see if it rotates on its' own as the heavy bit seeks the bottom. on the scoot that is easy on the center stand, simply put some wiight on the rear and the front tire comes off the ground. you may need someone to hold it while you check it. if it does rotate , wait for it to settle and put a small wheel weight on the opposite side from the bottom. then go ride and see it it helped. lotsa miles and smiles to ya ken |
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Post by skuttadawg on Apr 25, 2013 20:15:45 GMT -5
Mine were balanced with a static bubble balancer . If you go to Cycle Gear they have a high speed computer balancer
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Post by bstow on May 20, 2013 18:45:09 GMT -5
Tried letting the air out to about 10#. Riding a bit, then airing back up. No change. Local shop could not balance as their machine spindle was to large for the rim. Another local shop took the tire loose and re mounted it. No change. A shop in Las Cruces said that a 13" scooter tire did not need to be balanced and it was the tire. Called the distributor (scooterdepot). Explained the problem and what I had done attempting to fix it. They are sending me another tire on warranty. When I get it mounted I will post about how smooth it rides then with no bounce.  |
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Post by bstow on May 30, 2013 14:53:00 GMT -5
Got the new tire.
Had it put on the rim and tried it out.
Smmmmooooooottttthhh!!!!!
No more bounce!
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Post by shalomrider on May 30, 2013 20:19:00 GMT -5
howdy, i like to suggest the cheapest and first balance test in just raising the front tire and moving it % at a time and see if one side always goes to the bottom. if it does you need some weight on the other side. can't hurt. lotsa miles and smiles to ya ken |
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% and let it loose and see if it rotates on its' own as the heavy bit seeks the bottom. on the scoot that is easy on the center stand, simply put some wiight on the rear and the front tire comes off the ground. you may need someone to hold it while you check it. if it does rotate , wait for it to settle and put a small wheel weight on the opposite side from the bottom. then go ride and see it it helped.
