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    Senior Member dbass's Avatar
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    Default Dyna Beads

    Okay with so much mixed talk about the beads I did a little web search and found a world of arguments for and against Dyna Beads. One web review they said they tested the beads using a high speed balancing machine and the beads failed every time.

    Now some supporters of dyna beads that have seen this test claim you canít use a balance machine to test dyna beads, not sure why.

    So how do you know for sure they are working if you can use a balance machine?

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    Senior Member ToMang07's Avatar
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    Quote Originally Posted by dbass View Post
    Okay with so much mixed talk about the beads I did a little web search and found a world of arguments for and against Dyna Beads. One web review they said they tested the beads using a high speed balancing machine and the beads failed every time.

    Now some supporters of dyna beads that have seen this test claim you canít use a balance machine to test dyna beads, not sure why.

    So how do you know for sure they are working if you can use a balance machine?
    Here's testing for ya, I have had it up to 120mph w/ dynabeads and no wobble/shake!
    Bikeless...

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    Senior Member surfshrink's Avatar
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    All I know is that since I started using them, my front no longer shakes, my ride is much smoother, and my tires are lasting significantly longer. No scientific research here, just anecdotal evidence.
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    Senior Member scup's Avatar
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    Quote Originally Posted by dbass View Post
    Okay with so much mixed talk about the beads I did a little web search and found a world of arguments for and against Dyna Beads. One web review they said they tested the beads using a high speed balancing machine and the beads failed every time.

    Now some supporters of dyna beads that have seen this test claim you canít use a balance machine to test dyna beads, not sure why.

    So how do you know for sure they are working if you can use a balance machine?
    Watch this: [ame]http://www.youtube.com/watch?v=eq263AYgyYg[/ame]

    I use dyna-beads in 6 tube motorcycle tires w/o any troubles
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    Senior Member NDAna's Avatar
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    They seem to work for me but then maybe I'm just disillusioned?
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    Quote Originally Posted by ToMang07 View Post
    Here's testing for ya, I have had it up to 120mph w/ dynabeads and no wobble/shake!
    Quote Originally Posted by surfshrink View Post
    All I know is that since I started using them, my front no longer shakes, my ride is much smoother, and my tires are lasting significantly longer. No scientific research here, just anecdotal evidence.
    Experience: the best test ever - bar none.

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    Senior Member Kalten's Avatar
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    Quote Originally Posted by dbass View Post
    Okay with so much mixed talk about the beads I did a little web search and found a world of arguments for and against Dyna Beads. One web review they said they tested the beads using a high speed balancing machine and the beads failed every time.

    Now some supporters of dyna beads that have seen this test claim you canít use a balance machine to test dyna beads, not sure why.

    So how do you know for sure they are working if you can use a balance machine?
    If I had to make a guess as to why a balance machine would not work, I would think it has something to do with the fact that the machine does not vibrate to assist with redistribution of the beads. One other thing is most spin balancers run for a very short time and would not give enough time either. Just a theory though...


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    Senior Member mark_1bx's Avatar
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    Quote Originally Posted by dbass View Post
    Okay with so much mixed talk about the beads I did a little web search and found a world of arguments for and against Dyna Beads. One web review they said they tested the beads using a high speed balancing machine and the beads failed every time.

    Now some supporters of dyna beads that have seen this test claim you canít use a balance machine to test dyna beads, not sure why.

    So how do you know for sure they are working if you can use a balance machine?

    As far as I know Dyna Beads has always said you can't test with a balancing machine.

    Ask the people that use them...I use them and they work for me.
    M STAR KMA

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    Senior Member mark_1bx's Avatar
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    Quote Originally Posted by ToMang07 View Post
    Here's testing for ya, I have had it up to 120mph w/ dynabeads and no wobble/shake!

    M STAR KMA

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    Quote Originally Posted by mark_1bx View Post
    As far as I know Dyna Beads has always said you can't test with a balancing machine.
    I'd like to hear their explanation for this to better understand the whole situation.

    Ervin

    VTX 1800/280

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    Member dclark31's Avatar
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    From the FAQ section on the Dyna Bead website:

    Can I put the tire on a balancer to see if it's working?
    No. Dyna Beads operates on physics principles, and requires the tire assembly to be in motion against a road surface to detect the exact counterbalance position. An electronic balancer has a solid, fixed mount, and does not allow the tire to react to imbalance.

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    Senior Member ervin260's Avatar
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    Quote Originally Posted by dclark31 View Post
    From the FAQ section on the Dyna Bead website:

    Can I put the tire on a balancer to see if it's working?
    No. Dyna Beads operates on physics principles, and requires the tire assembly to be in motion against a road surface to detect the exact counterbalance position. An electronic balancer has a solid, fixed mount, and does not allow the tire to react to imbalance.
    Thanks, but unfortunately this is not a really detailed explanation.

    Ervin

    VTX 1800/280

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    Senior Member dbass's Avatar
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    Okay I can understand how when you run the tire on the road the beads would vibrate, bounce, and move around redistributing the beads in the tire. I also understand that this would change the distribution of weight within the tire. I guess what I don’t understand is how the dyna bead company can be so sure the redistribution of weight is as good or better then fixed weights without testing.

    If you were on a bumpy road traveling at say 5-mils / hour you would feel the bumps more then say 70-mils / hour. Did the bump smooth out; no, all that occurred was the frequency of the vibration was changed to a cycle the suspension could mask or eliminate. So to say you can feel the difference is understood but doesn’t mean the vibration is gone. It could be cycling at a frequency that is almost completely taken up in the suspension which doesn’t mean it’s good for equipment like bearing.

    I’m not trying to discredit using dyna beads I’m trying to see if someone knows of testing other than I feel it in my butt. Increased tire life mentioned has merit, how much life increase and were they the same brand and model of tire
    Last edited by dbass; 01-06-2011 at 05:17 AM.

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    Seasoned Member VTX1300cnME's Avatar
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    Quote Originally Posted by ervin260 View Post
    Thanks, but unfortunately this is not a really detailed explanation.

    Ervin
    Based on the physics, both centrifugal and centripetal, of how they redistribute (I'm not going to put a physics lesson on here, here are a couple wiki links, yeah, i know, Wikipedia. . lol. ).

    http://en.wikipedia.org/wiki/Centrifugal_force

    http://en.wikipedia.org/wiki/Centripetal_force


    As you spin the tire on the road, and the tire goes "out of balance" the beads will redistribute to rebalance the tire. Without an understanding of how physics really work, it's going to be hard to explain exactly what's happening inside the tire when the rubber hits the road.

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    Senior Member GeminiII's Avatar
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    Seems Iíve read tire balancing machines simply do not spin up to the proper speed (RPMs) to adequately distribute the dyno beads. I believe that speed is equilivant to somewhere around 15 MPH. I assume a wheel's balance is not very important at very low speeds.
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    They fixed my front end hop at 35mph, good enough for me...
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    Not Dynabeads but the same basic principal. I thought this explained things pretty well. Check it out:
    [ame="http://www.youtube.com/watch?v=skY6qvzpNXI&feature=player_embedded"]http://www.youtube.com/watch?v=skY6qvzpNXI&feature=player_embedded[/ame]
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    Senior Member hilf's Avatar
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    I add my experience with those who use dyna beads and are satisfied with the outcome. I've used them for about three years and whatever the theory and physics illuminates, the results for me has been a predictable and stable ride.

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    Quote Originally Posted by dclark31 View Post
    From the FAQ section on the Dyna Bead website:

    Can I put the tire on a balancer to see if it's working?
    No. Dyna Beads operates on physics principles, and requires the tire assembly to be in motion against a road surface to detect the exact counterbalance position. An electronic balancer has a solid, fixed mount, and does not allow the tire to react to imbalance.

    But it would be extremely easy to mount vibration sensors on the axles, ride a course, install the beads and ride the same course again. The engine mod folks use a dyno to show how well their product works. The DynaBead folks could do a similar thing that would absolutely prove whether their product works or not but, for some strange reason, have chosen not to do so.

    Steve.
    Last edited by SteveF; 01-06-2011 at 08:26 AM.

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    Senior Member NVR2FST's Avatar
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    Been using them for a few years and they are more balanced the the wheel weights and look better than wheel weights especially on my polished wheels. For the price of the beads just go ahead and try them yourself if they didn't work they would have been long gone by now
    ]

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    Senior Member XRiderChuck's Avatar
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    they work better'n wheel weights for me, and thats all I give a crap about.
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    Quote Originally Posted by XRiderChuck View Post
    they work better'n wheel weights for me, and thats all I give a crap about.
    Ditto

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    Old Goat TennX's Avatar
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    If I may add Dyna beads are kinda like the Darkside you got to try em to know they work....
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    Senior Member 2wheelsforme's Avatar
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    I tried them with poor results. I also have had poor results from some other type balancers. I do know when it is right on. I had a rear tire once that after mounting the guy said it needed no weights and it was perfect. Makes me wonder what would have happened if I had added beads to an already perfect balance. I'll stick with the computer balance and weights.
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    Senior Member ShowTime56's Avatar
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    ..............been running the beads for almost 5 years now..............love em. I also change out quite a few customer tires and only balance with the beads. Zero complaints!

    Show

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    Senior Member WildHorse's Avatar
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    Quote Originally Posted by TennX View Post
    If I may add Dyna beads are kinda like the Darkside you got to try em to know they work....

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    Senior Member edgee's Avatar
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    Quote Originally Posted by ShowTime56 View Post
    ..............been running the beads for almost 5 years now..............love em. I also change out quite a few customer tires and only balance with the beads. Zero complaints!

    Show


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    Quote Originally Posted by TennX View Post
    If I may add Dyna beads are kinda like the Darkside you got to try em to know they work....
    Yep I had a horrible vibration at highway speeds when I rode my bike home when it was new, I took the weights off and put Dynabeads in and it rode smooth as glass with them. I've used them ever since.


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    Senior Member RRider's Avatar
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    You also have to remember that as you ride,your tire wears. First when tires are made,they are not perfectly round weight wise to keep this simple. Thats why you have to balance them in the first place. As you ride you are removing rubber from the tire. Quick switch but stay with me! When you drive your car the same thing happens,you are loosing rubber when you drive. When you turn your front wheels the outside edge loses even more due to wear-follow me so far! So you rotate your tires on your car and have the tires REBALANCED. Why,because now the tire has different weight characteristics due to rubber being removed as you road on the tire. If you kept the same weights when you first bought the tires and continued to ride on them,the tire would develope a wobble,due to the tire being out of balance-rubber removed during use!
    In the end,dyna beads consistantly balance your tire through its distibution of beads inside the tire as it wears. If you think of the beads as a solid wheel weight,just like you would put on your rim,just broken up into little peices. These peices just gather inside your tire like a regular weight to stop the wobble/vibration. Benefit,they can move on there own to adjust for tire wear while the regular wheel weight is stuck in one position. The biggest problem why we are sceptical about dyna beads is that most motorcycle tires do not last as long as car tires and we do not rotate them. You would get more milage out of your bike tires if you did balance them once a year with regular wheel weights-lots of post on here about front end wobble/choppy tires(Not Bearing related)-would it have happened so soon if the tire was balanced once a year?
    Last edited by RRider; 01-06-2011 at 12:48 PM.

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    Senior Member mark_1bx's Avatar
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    Quote Originally Posted by TennX View Post
    If I may add Dyna beads are kinda like the Darkside you got to try em to know they work....

    LOL......Oh Boy!
    M STAR KMA

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