Have heard the good about Dynabeads, but what are the negatives?

[lljjmm]

Looking to install dynabeads, but want to know if there is any negatives from people who have used them and went back to regular wheel weights.

[Smokinjoe-VRCCDS#0005]

I used them ( 3oz ) and got the worse mileage I ever got out of a Cooper Zeon 2XS car tire on the rear...7,400 miles     If you put a dog turd in a pretty box someone will buy it....I think they are no more than snake oil...Others seem to think they are the greatest since slice bread...To each his own  

[blackcat]

i mounted a car tire back last fall, i didnt have the tire balanced , but used the Dyna Beads everything was fine for several months then i started getting a vibration at speeds over 40 mph, i thought it was the universal at first but soon narrowed it down to the rear tire being out of balance

i took the wheel off and went to have it checked on a balance machine, weights were added..ok thought it was solved , but after getting it back on vibration is still there.

i take the wheel back off and go back to my tire dealer and have him take the tire off the wheel and find that there is moisture in the tire and it is causing the beads to ball up and throw the tire off balance

the balancer spun at slow speed and you could hear the beads tossing around , and since they wouldnt spread out, the balance machine did not detect anything  

so i ended up taking the beads out of the rear and use weights, but i am still running them in the front with no problems.

blackcat

[PAVALKER]

I did have an issue on one of my bikes where a "bead" got caught and stuck in the valve core and kept letting the air out of the tire every time I checked tire pressure.  Replaced valve core to rectify the problem, but would think the filtered valve cores would prevent that from the git go.

[RLD]

You can't use Ride-ON!! 

[TearlessTom]

I've had nothing but good experiences with them. Have run them in a couple of bikes and my truck too.

Blackcat are you sure those were dynabeads or maybe a competitor. Just curious? That is some interesting info that I had never heard before.

SmokingJoe is it possible that the tire ran smoother so you ran it harder. I've seen your skills and am surprised that any tires last very long...I'm hoping that one day I can ride as well...

Tom

[PharmBoy]

You can't have water or Ride-On in your tire with Dynabeads and you can't put diesel in your tank with the gasoline.  Some things in life just do not work out.  To me, it seems to be a common sense thing, but they do work well, at least to a little over triple digits for me in my two bikes...JTL

[lljjmm]

Is there an easy way of removing beads from a tire (front & back), other than removing tire from rim?

[TearlessTom]

Is there an easy way of removing beads from a tire (front & back), other than removing tire from rim?

Nope!

Maybe breaking the bead and putting a vaccumn cleaner hose in it .

[Cliff]

i mounted a car tire back last fall, i didnt have the tire balanced , but used the Dyna Beads everything was fine for several months then i started getting a vibration at speeds over 40 mph, i thought it was the universal at first but soon narrowed it down to the rear tire being out of balance

i took the wheel off and went to have it checked on a balance machine, weights were added..ok thought it was solved , but after getting it back on vibration is still there.

i take the wheel back off and go back to my tire dealer and have him take the tire off the wheel and find that there is moisture in the tire and it is causing the beads to ball up and throw the tire off balance

the balancer spun at slow speed and you could hear the beads tossing around , and since they wouldnt spread out, the balance machine did not detect anything  

so i ended up taking the beads out of the rear and use weights, but i am still running them in the front with no problems.

blackcat

I would be concerned about how that moisture got inside my tire!

[1FAST6]

I've used the same set of beads on 4 tires and had no issues.

[Oyeaa]

No problems, ever.   Perfect balance as far as I can tell.

[Disco]

I have enjoyed 19,000 trouble-free miles between the Valkyrie and the late, great 'wing with smooth ride and long tire life.

I have a second set of wheels with new tires ready to go and have installed 2 oz in the new front and 4 oz in the new DS rear.  I also have the beads on hand to install in Janet's ACE Tourer when the new tires arrive. 

[FryeVRCCDS0067]

i mounted a car tire back last fall, i didnt have the tire balanced , but used the Dyna Beads everything was fine for several months then i started getting a vibration at speeds over 40 mph, i thought it was the universal at first but soon narrowed it down to the rear tire being out of balance

i took the wheel off and went to have it checked on a balance machine, weights were added..ok thought it was solved , but after getting it back on vibration is still there.

i take the wheel back off and go back to my tire dealer and have him take the tire off the wheel and find that there is moisture in the tire and it is causing the beads to ball up and throw the tire off balance

the balancer spun at slow speed and you could hear the beads tossing around , and since they wouldnt spread out, the balance machine did not detect anything  

so i ended up taking the beads out of the rear and use weights, but i am still running them in the front with no problems.

blackcat

I would be concerned about how that moisture got inside my tire!

Air compressors are notorious for having condensed water in their tanks from the humidity in the air they inhale. It’s just the nature of how they work. If you don’t drain the tank often enough that water will come out with the compressed air. That is bound to be how the moisture got in the tire.

If the tire was letting moisture in it would have to have less air pressure in it than water pressure outside it. At normal tire pressure and barometric pressure you’d have to get pretty far under water for that to happen.

[Misfit]

Is there an easy way of removing beads from a tire (front & back), other than removing tire from rim?

Someone posted awhile back about removing the beads to reuse. Take the tire off of the wheel and clean a spot inside the tire. With duct tape attach an envelope to the spot. With the envelope open rotate the tire so the beads roll in. I told a friend about this and he said it worked great.

[bg]

been using them for over 3 years with no  problems on my motorcycle tire.
not sure about using them in a car tire though.

[X Ring]

Air compressors are notorious for having condensed water in their tanks from the humidity in the air they inhale. It’s just the nature of how they work. If you don’t drain the tank often enough that water will come out with the compressed air. That is bound to be how the moisture got in the tire.

They do make inline filters to remove the water from compressed air.  Simple install on your compressor.

Marty

[1FAST6]

Yep, I posted the envelope trick.  Works great!  Gotta watch if you lube the beads going on or off the rim to make sure you don't get sloppy and get the beads wet.  If you do, just let them sit overnight to dry out before seating the beads and sealing the moisture in.  Also compressors will let some vapor in, but I wouldn't think it would be enough to make the beads clump together.  Then again, anything is possible!

[Robert]

Anyone that put enough air in their tire to get water in it either has a compressor that is in sore need of maintenance or has a real cheapo one. On a compressor take a look at where the air goes in and comes out if its the same hole or real close then dont let the compressor run and fill a tire. I have a
Sears one for home and the regulator assembly is attached to the same pipe that the air comes out of the compressor so it actually feeds the line going out to the air hose then into the tank. So as the air goes out of the compressor it carries the water to your work not to the tank to be separated. I also have the Dyna beads in all my vehicles and like them.

[BonS]

Before ceramic beads steel shot was tried but a little moisture and they would rust and stick together in a clump and throw off the balance.  A little moisture in the tire won't stick the ceramic beads together as the forces are too great. Sticky substances such as excess tire mounting lube will cause problems though.

Regarding CT's the Dyna Beads are not recommended for low profile tires that are less than 65 series because the lateral imbalance won't be fixed with the beads. According to some: Using regular weights to fix the lateral imbalance on a CT and then using beads for a fine-tuned ride should work fine.

[Steve K (IA)]

I have the beads in the tires of both my Valks tires.  Both run as smooth as glass down the road, so I thought I'd put them in the tires on my car.  Was getting the worst vibration.  Took the car to a tire shop to have the tires spin balanced and they wouldn't balance...different reading each time.  Had them removed and weights put on.  Not sure what was going on with the tires on my car.  They were close to new.

[BonS]

I have the beads in the tires of both my Valks tires.  Both run as smooth as glass down the road, so I thought I'd put them in the tires on my car.  Was getting the worst vibration.  Took the car to a tire shop to have the tires spin balanced and they wouldn't balance...different reading each time.  Had them removed and weights put on.  Not sure what was going on with the tires on my car.  They were close to new.

From Innovative Balancing web site: "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."

I dunno' but maybe your tires had some tire mounting lube inside the tire that was sticking some of the beads to the tire? This makes for a heavy spot and then the remaining beads are too light to re-balance the tire dynamically. The fact that they don't recommend dyna beads in car tires leaves me cold. Trucks, trailers, motorcycles - yes - but they don't market to cars.

[Cliff]

i mounted a car tire back last fall, i didnt have the tire balanced , but used the Dyna Beads everything was fine for several months then i started getting a vibration at speeds over 40 mph, i thought it was the universal at first but soon narrowed it down to the rear tire being out of balance

i took the wheel off and went to have it checked on a balance machine, weights were added..ok thought it was solved , but after getting it back on vibration is still there.

i take the wheel back off and go back to my tire dealer and have him take the tire off the wheel and find that there is moisture in the tire and it is causing the beads to ball up and throw the tire off balance

the balancer spun at slow speed and you could hear the beads tossing around , and since they wouldnt spread out, the balance machine did not detect anything  

so i ended up taking the beads out of the rear and use weights, but i am still running them in the front with no problems.

blackcat

I would be concerned about how that moisture got inside my tire!

Air compressors are notorious for having condensed water in their tanks from the humidity in the air they inhale. It’s just the nature of how they work. If you don’t drain the tank often enough that water will come out with the compressed air. That is bound to be how the moisture got in the tire.

If the tire was letting moisture in it would have to have less air pressure in it than water pressure outside it. At normal tire pressure and barometric pressure you’d have to get pretty far under water for that to happen.

Ooops ,, I left out the part where my concern would be where I am airing up might not be the best choice, or if using my own compressor to give a good checking out for excess internal moisture.  

[FryeVRCCDS0067]

Anyone that put enough air in their tire to get water in it either has a compressor that is in sore need of maintenance or has a real cheapo one. On a compressor take a look at where the air goes in and comes out if its the same hole or real close then dont let the compressor run and fill a tire. I have a
Sears one for home and the regulator assembly is attached to the same pipe that the air comes out of the compressor so it actually feeds the line going out to the air hose then into the tank. So as the air goes out of the compressor it carries the water to your work not to the tank to be separated. I also have the Dyna beads in all my vehicles and like them.

I assumed that he picked up the moisture laden air at a service station or at the shop where the tire was installed, not from a small personal compressor.

I have two 50hp compressors in my maintenance shop. One acts as a backup so we can keep running while doing maintenance or repairs on the other one. The both feed into a 250 gal. storage tank which has to be drained daily. Because of the volume of air we use that 250 gallon tank will fill completely with water in a few days. The water is what condenses out of the air as it is compressed, it does not signify a problem with the compressors. Between the tank and the plant we have a commercial air drying unit which completes drying the air for plant use.

Although this is a larger system than tire shops or bikes shops would normally use the principles of operation remain the same. And it also remains true that if the shop doesn’t make a habit of draining their tank they are going to be blowing out water with the air.

Good practice in a commercial shop is to shut down the compressor and leave the tank drain valve open when shutting down for the day.

[lljjmm]

Remove existing wheel weights? or does it make much difference?

[1FAST6]

Yes, remove all existing weights.  I think the recommendation is 2 oz. front and 3 oz. rear.  Maybe more if you have a CT.  They have a table on their site to tell how much for a given tire size.  It's not that important to be exact with your measurements, but better to have more than not enough.

[Jabba]

I have 2 oz in each of my two car tires on my valks. 

The standard works GREAT.  I do not notice ANY imbalance what-so-ever. 

The Interstate, I can't say, because I just put the tire on yesterday, and have only ridden it about 3 miles, at mosest speeds.

Jabba

[1FAST6]

Here's the link to the chart:
http://www.innovativebalancing.com/chart.htm#MotorcycleChart