I am getting some new Toyo open country AT tires for my 05 4wd Toyota Tacoma. I was thinking about using Dyna beads to balance them. Anyone have any input on them? I realize you can't use any products like Slime, and you must keep your air supply dry.
Anyone use Dyns beads
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Never heard of it....what are they ???
Originally Posted By: aaxb970
Never heard of it....what are they ???
I had not heard of it, so I searched. http://www.innovativebalancing.com/news.htm is their website, and offers some theory. I am sceptical. To the extent that the axis of rotation of the wheel displaces due to the wheel being heavier in one direction, I would expect the beads to migrate to that heavier spot. Yet searching for "Dyna beads" turns up people who say they like the result. I did not find any independent instrumented tests.
Never heard of it....what are they ???
I had not heard of it, so I searched. http://www.innovativebalancing.com/news.htm is their website, and offers some theory. I am sceptical. To the extent that the axis of rotation of the wheel displaces due to the wheel being heavier in one direction, I would expect the beads to migrate to that heavier spot. Yet searching for "Dyna beads" turns up people who say they like the result. I did not find any independent instrumented tests.
Quote:
To the extent that the axis of rotation of the wheel displaces due to the wheel being heavier in one direction, I would expect the beads to migrate to that heavier spot.
Just the opposite. Due to the axis of rotation being off the true center of the wheel, the light part will be farther from the axis and centrifugal force will bring the beads to the light part of the tire. The axis of rotation moves (up & down) due to the compliance of the suspension.
They work well in 75 series or taller tires, less well in lower aspect tires. They are especially good in truck flotation tires that don't remain in balance due to uneven wear of the big lugs. They also work well in motorcycle tires and trailer tires.
To the extent that the axis of rotation of the wheel displaces due to the wheel being heavier in one direction, I would expect the beads to migrate to that heavier spot.
Just the opposite. Due to the axis of rotation being off the true center of the wheel, the light part will be farther from the axis and centrifugal force will bring the beads to the light part of the tire. The axis of rotation moves (up & down) due to the compliance of the suspension.
They work well in 75 series or taller tires, less well in lower aspect tires. They are especially good in truck flotation tires that don't remain in balance due to uneven wear of the big lugs. They also work well in motorcycle tires and trailer tires.
Originally Posted By: Rand
they are good for really big heavy tires..
for cars they are marginal at best.
Dyna Beads are real popular with motorcyclists. These tires are usually much smaller than car tires. Why would you say they are marginal on car tires?
they are good for really big heavy tires..
for cars they are marginal at best.
Dyna Beads are real popular with motorcyclists. These tires are usually much smaller than car tires. Why would you say they are marginal on car tires?
What type of motorcycle tires though? High speed crotch rockets or lazy cruisers?
I have a bead balance product in my 37" Interco tires for the truck and they have worked really well. The larger amount of tread and/or the softer compound the tire has, the better these bead balancing products can be. In my case, if I weight or pad balance my tires, after 1 or 2k miles the rubber may have worn down 1/64". Figure that out over the size of a 37" tire and you can see how off-balance the tire can be already.
Even if the bead balancing wasn't the absolute best 100% of the time, it appears more economical in my mind to run a pretty good balance constantly versus the fluctuation you can receive from other balancing methods on the aforementioned tires.
I'm not sure what size tire you are running, but grab enough packs of the beads and execute a DIY tire change, simply having a shop insert the beads. It isn't an expensive operation, if you want to see for yourself, and I think it may be worth a try in my opinion, especially as you move from road tire, to AT, to MT, to offroad on the spectrum.
Even if the bead balancing wasn't the absolute best 100% of the time, it appears more economical in my mind to run a pretty good balance constantly versus the fluctuation you can receive from other balancing methods on the aforementioned tires.
I'm not sure what size tire you are running, but grab enough packs of the beads and execute a DIY tire change, simply having a shop insert the beads. It isn't an expensive operation, if you want to see for yourself, and I think it may be worth a try in my opinion, especially as you move from road tire, to AT, to MT, to offroad on the spectrum.
Never would use these in my sport-bike tires. Since I change my own tires, it's no problem to take the extra few minutes and balance properly. I use http://marcparnes.com/ stuff.
Many of the higher-end sport bike tires often don't require any weights at all.
Many of the higher-end sport bike tires often don't require any weights at all.
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