Can I use your product with my Automatic tyre Inflation system?

As long as your inflation system connects to a valve stem, and the valve stem still has the original 1-1/4" valve core inside, you won't have a problem. You will have to replace the original valve core with the filtered valve core we supply.

Can I fit Dyna Beads into my Triumph's 90° tyre valves?

Triumph Tyre  Fitting

Dyna Beads work great with Triumphs 90° tyre valves!

There are no problems installing Dyna Beads through Triumphs 90° tyre valves.

Can I use your product with my tyre Pressure Monitoring System (TPMS)?

Most TPMS sensors that thread onto the valve stem, such as the Pressure Pro, will require a filtered valve core.

Note: If your wheels have a TPMS system that is an integral part of the valve stem, Dyna Beads will not cause any problems, but you won't be able to install the beads using the Applicator. See examples here

Can I use your product with my Cats Eye Pressure Equalizing system?

Absolutely! The factory verifies that the Cats Eye System uses the original valve cores, but simply keeps them depressed in normal use. So all you need to do is swap the original valve cores with the filtered valve cores, and you're in business.

Ive got 245/75/16 BFG Mud Terrains. What beads would I require and how confident would you be that they would solve my balancing issue?

245 x 75 x 16 BFG KM2's need 6oz per tyre.

If you are running tubes or want to install in tyres already built up on the rims use Dyna Bead 'Standard' fitted with an applicator (recommend the vibration tool to aid installation). if you are breaking the beads or building up, use the larger '4x4/fleet' Dyna Beads.

Dyna Beads dynamically balance tyre wheel combination that are within manufacturers build tolerances. Dyna Beads are not designed to balance tyre wheel combinations which are badly moulded (can happen with BFG's), rims which are buckled etc. Dyna Beads is not a magic white potion in a bottle. Dyna Beads does not cure badly adjusted wheel bearings, lifted vehicles with incorrect camber ( standard Mitsubishi wishbone used with a lift for example) shagged track rod ends, steering boxes & bent chassis!

The laws of physics mean that Dyna Beads will dynamically balance the tyre/rim combinations listed on the website for 4x4 tyres.

A good example is after off roading mud can build up on the inside of the rim, remain in between the tread lugs & induce ferocious inbalance, Dyna Beads can noticeably reduce this. 2 question to ask yourself:

1/ Has the problem just started or has it occurred since fitting new tyres &/or rims?

2/ is all of the running gear mentioned above in good condition, i.e. no wear/play or poorly lifted vehicles?

We have always found that if the Dyna Beads do not do what the customer is hoping for, then there is always an underlying problem.

We do not just sell them, we use them, in my truck, our van, my trailer, my wife's car, my motorcycles, along with thousands of other users, all since 2005 in the UK & since 2000 in the USA.

If you have a problem we are always here to talk to you & try & diagnose if there is an underlining problem.

Should I use Dyna Beads in my new Super Singles?

Absolutely! We realize that these premium-quality tyres are carefully balanced at the factory, and do not come with balancing weights as a result. However, as the miles pile up, this situation will change. tyres do not wear evenly, and as a result, even this top quality tyre will require balancing. We offer a new special EZ Open Bag size just for this tyre. Before your Michelin dealer mounts those tyres on the alloy rims, have him install our Super Single Pack for maximum long tyre life.

Available for Owner/Operators here, or in the Fleet Program.

Can I use Dyna Beads in my 5th Wheel with the Dexter Torflex suspension?

Absolutely! The Dexter Torflex suspension is independent from left to right within the same axle and also independent from axle to axle since there is no equalizing system to provide any transfer of load from axle to axle.

Why don't you have tyre charts for cars or SUV's?

We do not market to modern cars and SUV’s intentionally. The main reason (among others) is due to the low profile of modern car tyres. For modern cars and SUV’s, traditional weight balancing and the use of a Dyna Beads maintenance pack is recommended. Click here for information on low profile tyre maintenance packs.

Can I use Dyna Beads in my motorcycle?

You bet, and you'll get a glass smooth ride! Whether you have a Harley, Honda or a Tank scooter move up to the super-smooth, weightless ride of Dyna Beads! See the Motorcycle Page here.

Can I use Dyna Beads for motorcycle road racing?

No. The inner liner compound of motorcycle road racing tyres is too soft to allow Dyna Beads to perform properly. (this does not apply to off-road motorcycle racing)

Do I need filtered valve cores for my motorcycle?

The purpose of the filtered valve core is to prevent a bead from getting caught in the valve core mechanism. So if your valve stems can accomodate the filtered valve cores, then by all means go ahead and use them.

Filtered valve cores, however, do not fit a lot of motorcycle valve stems. They require a seat 1-1/4" down in the stem. If you cannot use them, simply rotate the tyre so the valve stem is about the 6:00 position, then give the valve stem a quick shot of air prior to checking pressure.

Can I use your product in my H1 Hummer?

If the answer to either of the questions below is yes, then our answer is no.

  • Do you have the Central tyre Inflation System option installed?
  • Do you have Run Flat tyres installed?

If you have the CTIS option, and you have a problem with it, and the dealer finds any internal balancing media inside, this automatically voids your warranty.

Will your beads damage my tyres or alloy wheels?

Never! The material is totally inert and will not react with either.

Do I have to take my tyres off the vehicle to install the beads?

No, but if you can, it will speed up the process. The more straight-up-and-down you can position the valve stem, the easier this becomes. Whatever works for you, do it.

I have valve stems that have a 90° bend. How do I install the beads through these?

Most customers have had no trouble doing this, and we even have a picture of this process on a motorcycle on the Installation page. Occasionally, a poor quality bend can reduce the size of the hole and not allow beads to pass, but these cases are in the minority. The best way to install is with a hand held vibration tool. See the Installation Page for this here.

Can I use Dyna Beads with low profile tyres?

Click here for information on low profile tyre maintenance packs.

Can I use Dyna Beads in tyres with inner tubes?

Absolutely! The inside of an inner tube is perfectly smooth, the ideal surface for Dyna Beads. We strongly advise using new inner tubes before installing Dyna Beads. This applies to motorcycles as well. The reason is that old inner tubes often have accumulations of compressor oil, which makes the inside tacky or sticky, which will inhibit Dyna Beads from working properly, or not at all.

Note: Some vehicles, like the Unimog, occasionally run inner tubes in these large aggressive tyres. Some of these tubes can add 15 - 20 lbs per tyre to the weight, so it's advisable to let us know this when you inquire.

If I put in 2 oz, but the tyre only needs 1 oz., what happens to the rest of the beads?

Only the beads required to counteract the imbalance will be used, the rest will distribute themselves evenly around the inside circumference of the tyre. This is the beauty of the system. See the How It Works.

What is a Maintenance Level application?

While our product is designed to be used without weights on most vehicles, many some pickup customers with low-profile tyres have found that the addition of 3 - 5 ounces in their tyres and keeping the weights on has accomplished two goals: The ride smooths out noticably, and most future rebalancing requirements have been eliminated. This is also the solution for customers having tyres with an existing lateral imbalance. Click here for information on low profile tyre maintenance packs.

If there's moisture in my tyres, will it stop the beads from performing properly?

NO. You mean will it clump? Dyna Beads® are a perfectly round, uniform surface, very heavy, and won't clump.
...and because they are 100% solid ceramic, they don't rust! Read more here.

Why not use glass beads?

Our high-density ceramic beads are 60% heavier than glass beads, so that means it takes less by volume, which is more efficient, especially in smaller tyres. The heavier the bead, the more efficient they are. Glass beads will grind down relatively quickly, our ceramic Dyna Beads won't. As soon as the glass beads grind down, they are susceptible to "clumping" due to moisture. Shops report that dismounting tyres that contain this pulverized glass is hazardous to their hands, to say nothing of breathing it in. Dyna Beads are safe for you, your shop personnel, and the Environment.

What about Mechanical Balancers?

Mechanical balancers are overly expensive for the simple task they are required to do. Would you rather pay $10.00 for a smooth ride, or $150.00?

Due to the large disc that mounts directly behind the wheel, they reduce the flow of air across the front brakes , which can be a problem with big rigs in hilly territory. (a.k.a. - brake fade / rotor warpage)

Here's a quote from leadfreewheels.org on mechanical balancers:
" Drawbacks are that the balancers have a fixed amount of balance medium and can only correct balance up to a limit of about 12 oz. of lead. Also, like external weights, the balancer operates at a smaller radius than the tyre, making it progressively less effective as the tyre diameter increases for a given wheel diameter."

Dyna Beads develop more counterbalance force than mechanical balancers because they operate at the extreme outside circumference of the tyre. Dyna Beads have no weight limitations, and our Ceramic media is 100% environmentally safe.

Dyna Beads are more effective on Drive tyres.

The typical mechanical balancer can counterbalance about the equivalent of 12 oz of lead. The only way to use these on drive tyres is to bolt one between the drives. Now you have two tyres bolted together trying to stay balanced with a maximum per-tyre counterbalance of only 6 oz. Not enough in some cases, especially when the heavy side of two drives happens to come together.

Take a look at how we define efficiency in balancing media.

Efficiency for balancing media is defined by four primary factors:

Weight per unit of measure (g/cm)

The heavier it is, the less product it takes by volume to do the job. You get too much material in the tyre, and it can't concentrate it's weight into a small enough area. Due to centrifugal force, the extra mass of material ends up "flattening out" over a large surface area, defeating it's efficiency.

Resistance to movement

Irregularly shaped media has to "slide" along the inner tyre surface, and naturally, sliding creates a lot of resistance to movement, in comparison to a perfectly round object like Dyna Beads, that "rolls" into position with almost no resistance to movement.

Size, shape, and surface texture

While this should be just one factor, all of these are related when it comes to "clumping". Balancing powder is composed of many, many small particles of irregularly-shaped substances of rough, irregular surface texture. Clumping is caused from moisture clinging to these particles and sticking together due to surface tension. The more individual particles you have (size), the more surfaces you have (shape), and the rougher the surface (texture), creates a "target rich" environment for surface tension, and clumping. Dyna Beads are very large comparatively, absolutely round, and perfectly smooth. Moisture and surface tension has virtually no effect on Dyna Beads.


A balancing product that is nice and round with a smooth surface can only perform properly if it stays that way over many thousands of miles, especially important for Fleets. Other materials are much softer than ceramic, and can grind down quickly, and become prone to "clumping". Here's a comparison:

Mohs Hardness Scale

Ceramic (Dyna Beads) 7.0 - Hard
Glass 5.5 - Med
Stainless Steel 4.0 - Soft

Is there any situations where Dyna Beads are not recommended?

We do not recommend Dyna Beads in these situations:

  • In Goodyear Fortera tyres.
  • On any pickup, 3/4 or 1 ton, that has converted to 19.5 or 22.5 wheels and tyres. For the explanation, see this document.
  • To correct wobble, shimmy or shake, all a function of lateral imbalance or defective suspension components. See next question.

My vehicle has a [shimmy, shake, wobble]. Will your beads fix this?

No. There are three terms commonly used to describe lateral (back and forth) movement of the steering wheel, wobble, shimmy and shake. Two of these are a result of lateral imbalance of the tyre/wheel assembly.

Wobble - this is more a function of mechanical suspension components than anything else, but can also be a result of bent or damaged rims.

Mechanical Imbalance - This is lateral movement caused from tyre or wheel non-uniformity or improper bead seating. Corrected by measuring the amount of tyre and wheel runout and replacing the defective component.

Weight-related Imbalance - This is lateral movement at normal driving speeds commonly characterized as "shimmy" or "shake" resulting from unequal weight on both sides of the tyre and wheel circumferential centerline. The wider the tyre, the lower the aspect ratio, the more likely this is to occur.

How can I tell if my tyre has a lateral imbalance problem before installing the beads?

If you have weights installed now:
The most obvious indicator is a large amount of weight (comparatively) on one side of the tyre, and a small, or no weight on the opposite side.

If you are purchasing new tyres:
Have the tyres spun on a balancer. If the machine is telling you that you need a lot of weight on one side and little weight on the other, then the tyre has a lateral imbalance.

Can I put the tyre on a balancer to see if it's working?

No. Dyna Beads operates on physics principles, and requires the tyre 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 tyre to react to imbalance.

When you come to a stop, do the beads fall to the bottom of the tyre?

Yes. Due to a small static charge built up between the bead and rubber interaction, a few will remain attached to the tyre circumference, but only a very small amount. The rest fall to the bottom and reposition themselves when the tyre starts rolling again.

Will I hear the beads while driving?

No, you may possible hear them rolling around if you move the tyre when it is off of the vehicle and you are physically handling the tyre.

At what speed do the beads start to work?

The balancing principle is based on centrifigal force, and enough force is developed to keep the beads in position at approximately 25 - 35 MPH, but the exact speed is dependant upon tyre diameter.

How easy is it to install?

Very. See the Installation page.

How much will I need?

See all the different Charts.

Do I have to remove my wheel weights ?

Motorcycles, scooters, Yes. Most other vehicles, no. Many of our car and SUV customers have found that the addition of 2 - 3 ounces per tyre while retaining their wheel weights makes the vehicle ride much smoother than before, and eliminates most future balancing requirements. The typical application for this is Mercedes, Porsche, BMW's, Corvettes, etc.

Is there any way I can speed up the Applicator process?

There's a couple of nifty suggestions, the most popular being the vibration method to speed things along rather quickly. See the Vibration Method (Motorcycles) on the Installation page. This really works terrific, the author uses this method himself.

Can I use Dyna Beads in my airplane?

You bet! We've had many orders destined for aircraft, and zero complaints.

Is there a disadvantage to using Dyna Beads and weights together?

Yes. You won't attain the same additional tyre mileage that you will using Dyna Beads as the sole balancing method (any vehicle). In motorcycles and scooters, this will be especially noticable over time and may result in vibration or tyre cupping. So if you are using Dyna Beads as the sole balancing medium we recommend you remove all weights from the rim or spokes.

What kind of tyre life can I expect?

On average, about 20% - 30% more than under similar circumstances using wheel weights. The primary reason for this is that while most people only balance their tyres with conventional weights only once, you are rebalancing your tyre and wheel every time you drive.

For Motorcycles, our customers report a much higher tyre life, some as much as 100%, but the norm appears to be 30% - 50% more.

What if I have a flat?

It depends. If you have a flat and the tyre repair service installs the newer patches that require the dealer to actually grind the inside surface, you will most likely not have a problem, as the patch is almost flush with the tyre surface when properly applied.

An improperly mounted patch or if the excess glue has not been wiped out from around the patch may impede the action of the beads and cause a slight vibration. ( You will have to reinstall new beads after the repair, however )

Will an internal tubeless tyre patch effect the beads?

Not if it's applied properly. It is - very- important any excess glue that has oozed out from the patch be removed with solvent or alcohol. Otherwise all the beads will get stuck on them. I also advise a sprinkle of talcum powder over the area just to make sure there's no sticky residue left. But otherwise, no.
Can I reuse the beads in my next set of tyres?

Sure, all of our beads are reusable. For motorcycles/scooters, it isn't worth the hassle.

Here's what wheel weights can do to your alloy wheels

Strictly for the Technical types, here's some info on why beads are more effective than rim-mounted weights.

There's no place to mount standard wheel weights other than on the edge of the rim. Problem is, that is not where the weight is most effective, for two reasons.

The weight is not centered across the sectional width of the tyre. That's why some tyre Mechanics will split the weight into two smaller weights and put one on the inside, one on the outside. The most effective position is directly in the center of the tyre, and this is where the beads always are located.

The other problem is centrifugal* force. Lets say, as an example, your 16" tyre requires 3 oz's of weight, according to the Spin Balancer. The spin balancer is calibrated to calculate the amount of weight based on the placement of the weight at, in this case, an 8" radius. Once again, this is not the most efficient location for a counterbalance weight.

Continuing on with this example, the inside carcass surface ( next to the tread ) is about 4" farther away from the edge of the rim, to give us a radius of 12". This inside carcass surface is where the beads work, and the farther away from the center they are, the more centrifugal force they develop. So we can use this formula:

F1*R1 = F2*R2 to calculate the actual weight of beads needed.
(3)*(8) = (x)*(12)
24 = 12x
x = 24/12 or 2 oz.

So as we've shown, the beads are much more effective per oz than wheel weights, another reason to purchase Dyna Beads®! Stick-on weights are even worse, due to the fact that they have to be placed on the inside flat surface of the wheel, which is even farther away from the tread than the rim itself.

* OK, let's not get into a discussion on whether centrifigal force actually exists, and the true force, centripetal.