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post #1 of 27 (permalink) Old 09-23-2007, 12:00 AM Thread Starter
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Dyna Beads

innovative balancing

Instructions

What ya think?




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post #2 of 27 (permalink) Old 09-23-2007, 12:03 AM
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interesting
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post #3 of 27 (permalink) Old 09-23-2007, 12:13 AM
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I will stick with the weights..
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post #4 of 27 (permalink) Old 09-23-2007, 04:05 AM
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I'd like to see it tested on a tire balancer.

Surrender the booty, and let me get my hands on that beautiful treasure chest!!

One of these days, I'll actually buy a bike again...
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post #5 of 27 (permalink) Old 09-23-2007, 09:46 AM
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Quote:
Originally Posted by Captain Morgan View Post
I'd like to see it tested on a tire balancer.


No freakin way I'm putting that stuff in a street bike tire. Maybe a dirt bike, maybe a trailer tire, but not a high speed street going machine.

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post #6 of 27 (permalink) Old 09-23-2007, 10:07 AM
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Quote:
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I'd like to see it tested on a tire balancer.




and real world applications.

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post #7 of 27 (permalink) Old 09-23-2007, 10:11 AM
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Someone was talking about these on another forum... I seem to remember a review in MCN or something that said they didn't work very well... I wouldn't fluck with it...
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post #8 of 27 (permalink) Old 09-23-2007, 06:55 PM
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They look like airsoft pellets...

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post #9 of 27 (permalink) Old 09-23-2007, 07:02 PM
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i havent lost a weight yet on a bike...or car actually. no reason to change it up imo

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post #10 of 27 (permalink) Old 09-23-2007, 07:44 PM Thread Starter
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Quote:
Originally Posted by Captain Morgan View Post
I'd like to see it tested on a tire balancer.
That's what I was wanting. No vids on the website of it in action. I'd like to see a high speed balancer doing it before and after application. It has a theory of it working better and adapting with the changing conditions of the tire.




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post #11 of 27 (permalink) Old 09-23-2007, 09:16 PM
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From the website...
Dyna Beads are small ceramic spheres, high in density and perfectly smooth, that travel inside the tire to locate themselves opposite heavy points to eliminate out-of-balance motion.

This statement makes no sense whatsoever. Why do the beads magically travel to the area opposite the heavy points? If the inside of the tire is perfectly smooth, the beads should spread out evenly under high speeds. If a tire is waaaaaay out of balance, the heavy spot should induce a slight increase in radial speed where the heavy spot is located. If anything, a heavy spot should attract the beads, other than repel them. I'm calling 100% on the whole concept.

Wynona loved her big brown beaver
And she stroked him all the time.
She pricked her finger one day and it
Occurred to her she might have a porcupine
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post #12 of 27 (permalink) Old 09-23-2007, 09:18 PM
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yeah this doesnt seem to be scientifically sound... but

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post #13 of 27 (permalink) Old 09-23-2007, 10:52 PM
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In the 60's and 70's, the J.C. Whitney company sold a similar thing. It was a smaller thinner tire with the weighted beads, mounted to a steel wheel. The wheel was mounted to the wheel lugs under your wheel. As I remember, it supposedly worked on the large wheels of semi's.
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post #14 of 27 (permalink) Old 09-23-2007, 11:52 PM
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Quote:
Originally Posted by 6doublefive321 View Post
From the website...
Dyna Beads are small ceramic spheres, high in density and perfectly smooth, that travel inside the tire to locate themselves opposite heavy points to eliminate out-of-balance motion.

This statement makes no sense whatsoever. Why do the beads magically travel to the area opposite the heavy points? If the inside of the tire is perfectly smooth, the beads should spread out evenly under high speeds. If a tire is waaaaaay out of balance, the heavy spot should induce a slight increase in radial speed where the heavy spot is located. If anything, a heavy spot should attract the beads, other than repel them. I'm calling 100% on the whole concept.
I tend to agree.

And a vid of it on the site would not convince me at all. I'd want to see it in person so I could be sure the operator didn't put a weight on the wheel on the opposite side between vid shootings.

Surrender the booty, and let me get my hands on that beautiful treasure chest!!

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post #15 of 27 (permalink) Old 09-24-2007, 12:41 PM
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After I posted, I did some searches on it. It seems that large trucks are more apt to use these things. I still can't for the life of me convince myself they work. Stranger things have happened, but I'm very skeptical.

Wynona loved her big brown beaver
And she stroked him all the time.
She pricked her finger one day and it
Occurred to her she might have a porcupine
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post #16 of 27 (permalink) Old 09-24-2007, 01:04 PM
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I think the theory is that since the outter tread is machined round the light spots, or thin spots, would allow the beads to gather at a further distance from the center of rotating mass. Equalizing it's balance.

I however am also sceptical. If I were to have some free time I could try it out on the shops tire balancer.

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post #17 of 27 (permalink) Old 09-24-2007, 01:21 PM
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I'll probably just stick with the wheel weights...
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post #18 of 27 (permalink) Old 09-24-2007, 07:02 PM
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they make the one i posted in a strap on version
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post #19 of 27 (permalink) Old 09-25-2007, 01:02 AM Thread Starter
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Well I have found a guy that is using this on 2 of his choppers... says he loves it.




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post #20 of 27 (permalink) Old 09-25-2007, 11:29 AM
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Well I have found a guy that is using this on 2 of his choppers... says he loves it.
Could you really tell though on a chopper?
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