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Old 01-16-2010, 12:11 PM   #1
tututis OP
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High speed vibrations with Dyna Beads

Hi, I've mount a Conti Trail Attack in my 12GS and I've balanced them with Dyna Beads. I put 2 Oz in the rear tyre and 2 Oz in the front tyre becuse a I read this on the web http://www.innovativebalancing.com/c...otorcycleChart
From 0 - 130Km/h I don't have problems but from 130Km/h to I have high speed vibrations like a palpitating movement.
Why ? Anyone knows the answer ?
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Old 01-16-2010, 03:28 PM   #2
marchyman
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Maybe your tire needs more than 2 oz of weight to bring it into balance. It wouldn't be the first time.
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Old 01-17-2010, 12:24 AM   #3
Zagando
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Good answer, and it doesn't hurt to have more beads than whatever's called for, too.
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Old 01-18-2010, 04:49 AM   #4
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Woody recently commented in another thread that dyna beeds will do nothing for a wheel (cast or spoked) that is not true and round. I use dyna beeds and love them.








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Old 01-18-2010, 06:41 AM   #5
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Motorcycle Consumer News (FEB 2010 page 5) had another follow up to their prior testing that beads do nothing to improve balance, and again restated you should save your money and use a spin balance with weights.
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Old 01-18-2010, 05:38 PM   #6
Jon-Lars
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What was that again?

Motorcycle Consumer News, you say?

Could you quote the summation for us?

(I'm still waiting for a professional , impartial, POSITIVE review of Dynabeads in motorcycle tires.)
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Old 01-19-2010, 02:53 PM   #7
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Quote:
Originally Posted by marchyman
Maybe your tire needs more than 2 oz of weight to bring it into balance. It wouldn't be the first time.
WRONG. I used them on my 1150 and thought that adding more was going to make that pulsing sensation go away. I actually ended up only putting ONE ounce in the front tire, after which all was fine..
Less is actually more in this case.
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Old 09-18-2012, 12:25 PM   #8
S-curvy
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Muddy

Okay, just to muddy things a bit, I'll note that on my 1150GS, I made several tire changes myself. Some of the things that I noticed, in no particular order, were:
  1. I try to get the tire mfr's paint spot mounted opposite the valve stem
  2. On several changes, I removed the professionally mounted lead weights and experienced zero out of balance vibrational or WEAR indicators.
  3. On several other changes, I left those pro mounted weights in place because I read an ADV post by a tire mounting pro, who commented that his experience showed that it was most often the wheels, not the tires, that were out of balance. In this case, I experienced NO out-of-balance vibes or wear.
  4. Moto tires have such a short life span that it seems they could wear out before the out-of-balance wear patterns get worn in.
  5. On a recent, fully loaded road trip, I experienced out-of-balance vibrations for the 1st time, and this was on a tire that has been fine for over 10K miles (yes it's time is nearly up). I'm chalking this up to increased rear-end loading that effectively lightened the front-end.
I've not tried the Dyna Beads ... yet.
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Old 01-10-2013, 08:26 AM   #9
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Thumbs down DynaBeads

These guys are a total scam..!! The owner doesn't even know how to explain the physics of the product. Don't believe their nice little animation on their web... it's total BS..!! IMPORTANT NOTE: THIS PRODUCT DID NOT WORK FOR ME..!!! But, I found out the hard way. They're REAL easy to put in... but taking them out is a very expensive endeavor. You've got to break down your wheels if you don't like the product to get them out. I used them in my 2009 Harley Street Glide and got a real bad vibration around 60MPH and up. After the many phone calls to Innovative Balancing's "tech support" (which is a complete joke because they don't have any tech support) they couldn't explain it at all... all they could say was that it had to be something loose or wrong with the bike. So, I spent several hundreds of dollars between having my tires aligned with the rim (the dot and the valve stem), having my Fall Away checked-out, having my rims checked for defects, having every nut and bolt checked-out and ultimately having the wheels broken down to remove the POS DynaBead BS product. Went back to weights and immediately lost the vibration. Will NEVER use a scam product like this again and will NEVER deal with these Innovative Balancing yahoos again. DON'T DO IT..!! I only wish someone would have warned me beforehand. When I finally called to ask for my money back, all Carol (the owner) and her minions would say was "we'll gladly refund any unused product". When I asked how I could get my money back since I had obviously used it, they again just said (like a broken record) "we'll gladly refund any unused product". This meant of course that I was not getting any money back. I've never received any money back from them for my "used" product. In summary, their little white ceramic beads that go so easily in the valve stem, cost me roughly $500 to fix and ultimately remove. Don't be a sucker... they're counting on it..!!
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Old 01-10-2013, 09:29 AM   #10
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The concept of automatic dynamic balancing is real, provable physics and is applied in other industrial and commercial applications (fans at nuclear power plants between service intervals and consumer washing machines are a couple of examples)

I can't speak for Dynabeads but I've been using Ride-On TPS (a liquid that applies the same concept) for the past few years in several bikes with good results. The amount of it that I use varies from 6-9 fl. oz. (which is about 6-9 oz. by weight) depending upon tire size so 2 oz. of Dynabeads seems light to me.

How many miles on your tires? It could be tire wear causing the vibrations.
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Old 01-10-2013, 10:24 AM   #11
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Huh, somebody here has no profile, or posting history.

I have one, nothing to hide here, kinda gives me some credibility.

Anybody here smell something?

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Old 01-10-2013, 03:55 PM   #12
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Ya know that some people believe in a witching rod to find water for a well or precious metals! I mean, really believe it, even educated science type people. I've seen dowsing with a piece of wire in action. An unnamed oil company hired a professional dowser to find water in 1981 after drilling 3 dry wells. Note very remote area. Oil drilling requires lots of water to mix mud concrete etc. The dowser failed and no water was found. The oil company had to "steal water at night' to drill the well. But that is another story.

Dyna beads though, appear to real have real physical properties to test. I am a skeptic in all things, see it to believe it guy, but thought I would give the beads a try because the concept seemed reasonable.

I mounted new Mefo explorers front and back on my 990 without balancing or beads. Took the bike out and ran up it and settled at a cruise speed of 75-80. The bike vibrated from out-of-balanced wheels/tires. I put in the beads... 2 ounces rear and 1 ounce front. Ran the bike again and most of the vibration was gone. Added about 1/2 ounce more to each tire and ran the bike up again. Not perfect but they did appear to balance the tires. The balance was not as good as before but I had gone from stock scorpions to an aggressive tread with harder rubber. I had to figure that these tires would never be as smooth as the stock tires.

For what it's worth I am a believer in the beads.

Just saying that dyna beads can be scientifically tested with the right experiment. My test while convincing to me is no scientific method of testing. If I managed a mc magazine I sure would conduct a scientific test and get the facts out one way or another.

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knobbyjoe screwed with this post 01-10-2013 at 05:21 PM Reason: Baad speler
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Old 01-11-2013, 09:34 AM   #13
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The balance test test for them could be done using one of the on-the-car balancers. I've never understood why that test has apparently never been done by either the pro or anti folk. Seems to me, that would be the test to do.
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Old 01-11-2013, 11:52 AM   #14
knobbyjoe
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Here is a "test" for balancing beads.

http://www.youtube.com/watch?v=IB5m79SYgt8

This is is an example that is not conclusive or even acceptable as a scientific test.

Glaring questions:
Are there really beads in that tire?
If there are beads how about adding some more!
How about a pre run without beads and then with beads?
How about first balancing a tire to show that the machine works?
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Old 01-11-2013, 06:21 PM   #15
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I've used them in, I think, ten sets of tires over 35,000 miles. D-606 Knobbies and Metzeler Enduro's(think all terrain tread) and had a smooooooooth ride each and every time.
If they didn't work they would have been out of the tubes within 50 miles and I would have gone and gotten them balanced.
So yeah, I like them.
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