Dyna Beads for wheel balancing

[nathanmargolis]

Has anyone used this product in lieu of exterior weights that mark up rims when removed and take away from the looks?. They are plastic beads that you pour thorough your valve stem or when tire is broken down on rim. Google searches for review of the product is all good, but wondering if any BMW riders have tested or used.

Here is the link: Welcome to www.dynabeads.net

Thank you,
Nathan

[nathanmargolis]

Welcome to www.dynabeads.net

[bradzdotcom]

Pelican Parts Technical BBS - Search Results

[nathanmargolis]

Welcome to www.dynabeads.net

Sorry gentlemen. I will learn to cut and paste one day.

[bikerfish1100]

might want to learn how to use the Search function while you're taking a class in Copy&Paste.

[nathanmargolis]

Bikerfish,
You are absolutely correct about Search engine. I should do that. Other things read on Internet about this kind of balancing is very mixed if it works or doesn't.
Nathan

[Herb]

I can see why you might get some effect on a truck, which spends a lot of time at constant speed, especially in Europe where they are restricted so spend a lot of time chugging along at 56mph.

For a motorbike, which is a dynamic machine, constantly changing speed, rate of accel etc then surely these beads are going to be all over the place, wizzing round and round under their own inertia as the wheel changes speed?

[bikerfish1100]

Originally Posted by nathanmargolis

Bikerfish,
You are absolutely correct about Search engine. I should do that. Other things read on Internet about this kind of balancing is very mixed if it works or doesn't.
Nathan

even just the Search function here on this board is pretty damn useful. and yes, feedback on the Beads is mixed.

[Clif Port]

Dyna Beads are controversial. A couple years ago Motorcycle Consumer News tested them and concluded that they don't work. They tested them on motor-driven dynamic balancing machine, and they did not balance wheels on that machine.

The Dyna Beads distributor countered that they do in fact work in wheels installed on vehicles rolling on real roads, because the wheels move up and down with the road surface, and in a few revolutions they become distributed inside the tire opposite the heavy spots. And they have a video where they show the beads stabilizing a 2 liter plastic bottle with weights taped to one side with the bottle turned by a power drill.

So I decided to try them for myself. I've mounted and balanced my own tires for years. I mounted a fresh set of Pilot Road II's on an R1200RT, using dyna beads for balance. After 7,000 miles, at least 1,000 more than I usually get, the ride was as smooth & composed as when the tires were new. On my R1200GS however, after 5,500 miles with conventionally balanced tires, the ride was harsh and uncomfortable. Next set on the GS were installed with dyna beads, and after almost as many miles of the same kind of riding on the same roads, the ride is still smooth and controlled, and more tread remains. It seems to me that this could be because the beads are always adjusting to keep the tire in balance, where as fixed weights can't adjust and over time the tire wears unevenly and the ride deteriorates. Even with worn tires the ride remained smooth and stable at all speeds on both bikes. Including a transcontinental trip last summer on the RT.

So from my experience, I will continue to use them. I would like to see someone do a controlled experiment by mounting identical tires on identical bikes which would be ridden together on the same roads. by two riders who swap back and forth. And compare the ride after 6,000 or more miles.

[R1100S2000]

I have used them on twice now on my S and once on the RT. I have not noticed any vibrations. Can't say they are any better, but most definitely CAN say they are not worse, well, for me that is.

If i do have any problems i will stop using them but for now i will continue to use them.

It's a matter of personal experience and opinion.

[BadToTheBown]

I have dyna beads in my 4x4 tires (33" x 10.5 TAs), which are heavy and they work. i often have mud on them and the rims and they seem to deal with this dynamic. I would not say they are smoother than when I had wheel weights but pretty close.

I also run them in my R1100S and they are smooth, not a problem. However I would not recommend for track days! Apparently they do not move around so well in a hot tire and this impairs their performance, so for my track tool I still use wheel weights.

Bottom line, they work fine on the road for both my bike and 4x4 (not the same beads in both).

[lkchris]

So, let's see ...

In all the world's automobile factories, when tires are mounted to wheels prior to going to the assembly line, a significant step or time could be saved just pouring in some beads rather than putting the assembly on a wheel balancer, etc.

In all the significant racing series, i.e. Formula 1, DTM, NASCAR, etc., think of the advertising possibilities if race teams could be convinced to use this product.

I'm not buying it either.

[SergioK]

So what do you do come tire change time? Do the beads go all over the place after dismounting? Sounds like a mess.

lkchris, this is may be why they are not OEM cause who wants to deal with that afterwards?

[fralind]

Americans apparently you can tell everything and sell


Leistungstuning - Etel Tuning Shop - Etel-Tuning Shop

[ATA]

what are they in substance , May I ask?
Obviously, without postage etc palava- I wouldn't be able get them here in UK, ( may need to do some funny dealings to get it or... cough, cough)
Getting tempted to give it a try

[bikerfish1100]

Originally Posted by fralind

Americans apparently you can tell everything and sell


Leistungstuning - Etel Tuning Shop - Etel-Tuning Shop

Huh?
Americans?
German company, selling a product in Germany, on a website that is in German language only, and currency only in Euros relates to Americans HOW?

[wswartzwel]

Originally Posted by SergioK

So what do you do come tire change time? Do the beads go all over the place after dismounting? Sounds like a mess.

One of my customers believes in those things. They stay in the tire ok when dismounting it on my machine. then I scoop them out with a small paper cup. put them in the new tire and mount it. According to my computerized spin balancer they don't do crap.

[boxa]

After seeing this i might give them a try next tyre change.

DynaBeads demo video - YouTube

Thanx
Dave

[Clif Port]

That's the video that led me to try the beads. I can see that they wouldn't have the same effect in a wheel mounted on the rigid axle of a spin balancer, just like they don't work on the gravity balancer I use for conventional balancing. But they do seem to work on the bike, and the smooth ride lasts for the life of the tires.

I collect & re-use the beads when changing tires. The beads themselves are ceramic beads used for bead-blasting in industry. Some riders have used air soft pellets instead, and report that they work as well, just can't be added through the valve stem.

[jgrm1]

Originally Posted by bikerfish1100

Huh?
Americans?
German company, selling a product in Germany, on a website that is in German language only, and currency only in Euros relates to Americans HOW?

He got you to look.

-Jeff