PDA

View Full Version : A definitive word on DynaBeads?


bobhamlin
06-15-2009, 06:17 AM
I've been generally following the discussions about DynaBeads on this and other boards.

There are ardent supporters and there are skeptics. Without offending anyone who swears by them, I need help.

My rational side cannot figure out how they work. These beads gravitate to the exact spot they are needed, despite everything I understand about physics (which, admittedly, is limited). I've read lots of testimonials, but I have yet to come across, what I think would be a simple, definitive test.

The following video seems convincing, but it is not a tire.

http://www.youtube.com/watch?v=eq263AYgyYg

Has anyone put these beads through a computerized tire balancing process?

ringadingh
06-15-2009, 06:50 AM
I think I have an idea of the priciple behind the Dynabeads, it would work by centrifugal force which will cause them to move to the outside as they spin and stop where they are needed. It would be similar to your washing machine on the spin dry cycle. The clothes move to the sides and spread themselves evenly around the tub.
Years ago I heard of truckers pouring some water into there tires to acheive the same thing, I think that would cause rusting after a while.I dont know if anyone still does that.

phenrichs
06-15-2009, 06:57 AM
You will find people that still use an antifreeze type fluid in their tires. Dynabeads make beads in sizes suited to trucks and cars and heavyequipement also. I'm not sure that the computer balance test would be all that accurate as those machines aren't always that accurate.

phenrichs
06-15-2009, 06:59 AM
Oh, thanks for the video. And yes that is pretty much how it works.

caper
06-15-2009, 08:07 AM
Thanks Bob that clears it for me :) Funny I just put on a tire at a local shop and brought up the beads. Boy whay a decussion from the boys in the shop. They all had their reasons why it worked or didn't! When I left I was confused :):)

phenrichs
06-15-2009, 09:15 AM
Surprising, most shops have never heard of them. I had to print the instructions for the mech that mounted my tires.

dogdoc
06-15-2009, 01:04 PM
I agree with OP, they never heard of them. But they DO work well.

rooster1
06-15-2009, 03:35 PM
http://s2.images.proboards.com/grin.gif I have them in my tires and I am very satisfied.

Jared
06-16-2009, 07:24 PM
I'm going to try them tomorrow when I mount my DS tire.

isaiahsdad
06-24-2009, 09:20 PM
Ok, now where do I get them locally?? Do parts stores like Auto Zone have them?

Yellow Jacket
06-24-2009, 10:31 PM
Ok, now where do I get them locally?? Do parts stores like Auto Zone have them?

Go here, click on the Dealer Search button, enter your zip code and it should give you the nearest dealers.

http://www.innovativebalancing.com/index.html

kawasakikid
06-25-2009, 08:40 AM
I have dynabeads installed & so do many of our club members & everyone is happy with them.
So far they appear to eliminate cupping of the front tire.
Cheers,
Gary

isaiahsdad
06-25-2009, 04:52 PM
Went to the site and the charts are metric. Can anyone tell me how much they are running in the front tire? There are no local dealers so I am going to have to get them via the website.

strobe
06-25-2009, 05:05 PM
For the Nomad 1600 it is 2 oz for and rear (MC tire) and 3 oz for a CT (195 - 205). That is a new thing on the site to specifically mention the CT on the motorcycle charts, it was not there a while ago.

The front would be 2 oz as well.

cactusjack
06-25-2009, 05:05 PM
I have them in both my tires. My bike has never ridden smoother. That's enough evidence for me that they work as advertised. I think anyone who is skeptical has either 1) never tried them or 2) has tried them but has a bent rim or defective tire..

It would cost you just a few $ to find out.

Yellow Jacket
06-25-2009, 08:16 PM
I have 2 oz in my rear car tire. Absolutely smooth. When the front gets replaced, it too will get the beads.

bobhamlin
06-26-2009, 06:10 AM
I have them in both my tires. My bike has never ridden smoother. That's enough evidence for me that they work as advertised. I think anyone who is skeptical has either 1) never tried them or 2) has tried them but has a bent rim or defective tire..

It would cost you just a few $ to find out.

CJ, I accepted that they work, installed them and they seem to be doing the job. I still have a skeptical voice nattering, "How can this possibly work? What magic makes the correct number of beads gravitate to the exact spot they are needed vs. to where I would have thought they'd end up--all grouped at the heaviest spot? Like out of balance laundrey during the spin cycle?"

cactusjack
06-26-2009, 09:40 AM
I have them in both my tires. My bike has never ridden smoother. That's enough evidence for me that they work as advertised. I think anyone who is skeptical has either 1) never tried them or 2) has tried them but has a bent rim or defective tire..

It would cost you just a few $ to find out.

CJ, I accepted that they work, installed them and they seem to be doing the job. I still have a skeptical voice nattering, "How can this possibly work? What magic makes the correct number of beads gravitate to the exact spot they are needed vs. to where I would have thought they'd end up--all grouped at the heaviest spot? Like out of balance laundrey during the spin cycle?"

Well, it isn't magic - it's physics. You don't need to understand how an elevator or a DVD player works to use one.

I was skeptical at first too. It's such a simple principle, but I'll never go back to lead weights again if I can help it.

Link - How DynaBeads work (http://www.innovativebalancing.com/HowItWorks.htm)