dyna beads... update?

[Tufbusa]

Ok now heres a question for you as your problem sounds like something else... have you checked your direction of rotation on your tire and rim because your bouncing/imbalance after 20mph sounds like your tires are mounted incorrectly. No im not saying you dont know what your doing just an observation of a common problem.

OMG, please tell me you aren't serious with this series of posts! Noboby could be this far out of touch with reality and still be capable of mounting a tire. Apparently you haven't mounted a tire since 1979 when tires were actually directional. The days of bias ply tires are now in the distant past. It's time to catch up with technology and think "Radial"!

Let me help you out a little on that directional arrow on the sidewall of most if not all current motorcycle tires. The only reason that arrow exists is because the tread is designed to shed water efficiently in one direction. The carcass could care less which direction it rotates. Ask any guy who attends track days or races. We all flip the tire when it shows wear on one side. And, I might add that wearing the rubber down on one side has absolutely no effect on balance. I too have flipped my fair share of tires. Mark the valve stem position, flip the tire over and pop it on the balance machine and bingo, still in balance. It's the odd tire that will be out of balance and its usually due to loosing a wheel weight or wasn't balanced when it was mounted. This is true with both race and street tires.

I don't measure how long a front tire lasts by mileage, I measure their useful life (I'm sure sixpack will agree) by the number of landings. And never ever have I had a front tire wear funky or become unbalanced from wheelie landings nor do they get flat spots.

Dyna beads? If they work for you, great! But,,,,,,,,,, I'm not buying your koolaid!

 

[BusaBret]

:tiptoe:

Looking for some

 

[Tufbusa]

:tiptoe:

Looking for some

I've never pretended to be an :angel:

 

[sixpack577]

OMG, please tell me you aren't serious with this series of posts! Noboby could be this far out of touch with reality and still be capable of mounting a tire. Apparently you haven't mounted a tire since 1979 when tires were actually directional. The days of bias ply tires are now in the distant past. It's time to catch up with technology and think "Radial"!

Let me help you out a little on that directional arrow on the sidewall of most if not all current motorcycle tires. The only reason that arrow exists is because the tread is designed to shed water efficiently in one direction. The carcass could care less which direction it rotates. Ask any guy who attends track days or races. We all flip the tire when it shows wear on one side. And, I might add that wearing the rubber down on one side has absolutely no effect on balance. I too have flipped my fair share of tires. Mark the valve stem position, flip the tire over and pop it on the balance machine and bingo, still in balance. It's the odd tire that will be out of balance and its usually due to loosing a wheel weight or wasn't balanced when it was mounted. This is true with both race and street tires.

I don't measure how long a front tire lasts by mileage, I measure their useful life (I'm sure sixpack will agree) by the number of landings. And never ever have I had a front tire wear funky or become unbalanced from wheelie landings nor do they get flat spots.

Dyna beads? If they work for you, great! But,,,,,,,,,, I'm not buying your koolaid!

I do agree Tuf.
I know it's time to change tires based on how they feel and look.
Then I go back and look at my odometer and see how many miles I got, just for curiosity.
I'm thrilled if I got 3k miles!

 

[SKnight]

If dyna beads were the trick option to balancing tires every professional racer would be using them.

Any aftermarket product that no high speed professional will use should answer all your questions.

You can always learn what works and what doesn't by hanging around the race track. If it's out there, some cheap a$$ racer has tried it.

You shouldn't denounce what you don't know about and haven't tried. Another reason they aren't used in racing tires is that racing compounds are soft enough and get hot enough that the beads will actually stick inside the tire and not move like they should. Couple that with they would be a pain changing tires constantly and it's not worth it.

However on a street tire they work great. No issues, balanced the tire great from day one until I traded the bike in over 4K miles later. When I change tires this summer it's getting Dynabeads without a doubt. And they work great over 150MPH, trust me.

 

[stangman327]

How It Works

 

[m_ridgeway]

I did a lot of research over the past 48 hours on these things and have placed an order with Pashnit to have a kit sent to me. I ride 120 miles a day for work and will have these in before the riding season starts. I think they will work, and look forward to not having weights on the rim, also having the tire constantly balancing while riding.

I dunno about performance but my uncle has ran them for close to 100k miles on two cruisers and 1 sport tourer. he doesnt have any plans on changing. you'll be happy with them I think. I see the concerns with them people have though.

 

[stangman327]

I dunno about performance but my uncle has ran them for close to 100k miles on two cruisers and 1 sport tourer. he doesnt have any plans on changing. you'll be happy with them I think. I see the concerns with them people have though.

I guess the question is how can people have "concerns" with them that haven't even used them nor have they any evidence to substantiate any negative effects by using them.

Someone please bring to the table at least ONE validated claim of dyna beads causing ANY malfunction/crash in/with a motor vehicle or tire for that matter.

Seems to me that the people that HAVE used them are satisfied with them. I've never used them but I don't see the harm in me using them on my next set of tires unless I find some new or unknown fact that will show that they are dangerous on a motorcycle.

 

[Tufbusa]

You shouldn't denounce what you don't know about and haven't tried. Another reason they aren't used in racing tires is that racing compounds are soft enough and get hot enough that the beads will actually stick inside the tire and not move like they should. Couple that with they would be a pain changing tires constantly and it's not worth it.

However on a street tire they work great. No issues, balanced the tire great from day one until I traded the bike in over 4K miles later. When I change tires this summer it's getting Dynabeads without a doubt. And they work great over 150MPH, trust me.

First off, let's get your facts straight, eh? Not all race tires are soft. Actually some are quite hard. Many race tires run the same carcass with soft - medium & hard tread compounds. Please school me on how I would know if I have a soft or hard carcass that these beads may stick too? Pirelli actually had four compounds on one of their race tires. So, how would you explain that?

Secondly, where did you come up with the idea that these beads are going to stick to the inside of a race tire. Please school me?

If dyna beads work for you when you twist the throttle and hang on, Wonderful! All I'm saying is don't give me this song and dance about how wonderful they are until you or some credible source has given these things a work out. Try laying it on it's lips at your 150mph over a few bumps to rattle those beads around and see if the front tire stays under you? You can get away with a whole-lotta stuff when you are straight up and down that will bite you when you are leaned over.

Do you have any idea what happens to those beads when you encounter bumps? Or how difficult it may be for your forks to control the tire when the beads gets banged around by bumps, especially when the bike is leaned over? How about traction, does dyna beads have any affect on your tires' traction if they become dislodged and unstable over a bumpy surface?

These are all legitmate questions that anyone should ask when considering any aftermarket product that affects performance

 

[brpo]

I had a girl friend who loved dyna beads - used them all the time... Oh wait! that was a different kind of beads... Never mind

 

[Blanca BusaLess]

Tuf the beads spread out inside your tire when using them. As soon as your tire begins to turn they do this. I don't think hitting a bump or leaning over or any of that will have a difference. I can imagine carrying the front wheel long enough to have it stop spinning at which point yes I think the bears would be clumped together on bottom of tire. But I also think as soon as the tire hits ground and spins just once they would spread out again. I don't think it would cause any trouble. Haven't used them and this is just sofa talk

 

[sixpack577]

Tuf the beads spread out inside your tire when using them. As soon as your tire begins to turn they do this. I don't think hitting a bump or leaning over or any of that will have a difference. I can imagine carrying the front wheel long enough to have it stop spinning at which point yes I think the bears would be clumped together on bottom of tire. But I also think as soon as the tire hits ground and spins just once they would spread out again. I don't think it would cause any trouble. Haven't used them and this is just sofa talk

I've had a genuine bar to bar tank slapper at 120mph+(not on the busa)and I thank the Good LORD I didn't crash.
That was on a well balanced good condition front tire set down from a little unintentional 6" wheelie cresting a hill.
I don't want to take ANY chances of unsettled dynabeads after my front tire has stopped in the air, and suddenly has to return to 80 to 100+mph.
I think they'de probably do a good job for a cruiser or someone who just cruises and commutes.
I however wouldn't want to be the guy testing them in high speed corners, over any size bumps, and flicking from knee to knee.

 

[Amode]

Dyno's And Dyna Beads.

 

[BusaBret]

I had a girl friend who loved dyna beads - used them all the time... Oh wait! that was a different kind of beads... Never mind

Oriental Love Beads???

 

[Dennis]

To my understanding steady state would be the beads going to the outermost space from the center of rotation being the axle the same as the toys that attach to the spokes of a childs bicycle that slide from the center out on the spokes as the tire spins caused by constant rotation. And rotational dynamic is as the heavy spot on the tire is in one side of the wheel the beads oppose the force of it in the exact opposite direction caused by the oposing pull of the forward heaving motion of an inbalance... the same motion that causes wheel hobble or hop.

I think you are still missing the acceleration part of the equation. Think about it - the beads get all their motion and energy from contact with the inside of the tire. As my bike is accelerating from 0 to 160 mph in 8.7 seconds I can't believe that the beads aren't experiencing delay in gaining energy. If so, they would never reach the correct positioning to make the balance correct. If I quit accelerating they will catch up and move into position.

 

[Tufbusa]

Tuf the beads spread out inside your tire when using them. As soon as your tire begins to turn they do this. I don't think hitting a bump or leaning over or any of that will have a difference. I can imagine carrying the front wheel long enough to have it stop spinning at which point yes I think the bears would be clumped together on bottom of tire. But I also think as soon as the tire hits ground and spins just once they would spread out again. I don't think it would cause any trouble. Haven't used them and this is just sofa talk

I hear ya Saiid. I'm sure beads work fine for guys who putt around on the streets with fat chicken strips and roll the throttle on in 6th gear to reach 150mph and the cruiser crowd. I have no issues with anyone who chooses to give dyna beads a try. My questions are directed toward the guys who romp the pants off their bike and actually reach 40 degees or more of lean when traction is finite. No one who uses beads seem to know? What takes place when bumps are encountered. It's great if you have an idea but by no means is that a factual statement! Are you willing to be the test monkey so you can tell us exactly where you loose traction? I think not!

I looked at their website and according to the seller, the tires' ossilation or bounce is what moves the beads to the light side of the wheel. This process takes place on every start. Who would want to wait until the tire bounced the beads into place for a smooth ride? How long does this take, 30 feet or a mile? What really happens when the tire becomes unstable over bumps, do you know? I think not? Has anyone ever put beads in a tire then use a spin balancer to determine when and at what speed the beads become stable? If the manufacturer ever did this test he obviously wasn't pleased because he made sure he didn't share the results on his website. How accurate are the beads on an accurate spin balancer? I'd like to know? Anyone have input other than an opinion?

Please, give us some facts with teeth! Just giving your opinion after running beads is just that, your opinion. Opinions cannot be argued. You may just as well argue over who's religion God actually recognizes!

 

[BusaBret]

Tuf,

When it comes to God and dynabeads, you gotta have faith.

 

[Tufbusa]

Tuf,

When it comes to God and dynabeads, you gotta have faith.

Personally I prefer luck over faith or skill any day of the week!

 

[Ketchmi]

Card,.......really? I mean....REALLY?

I get on here and give my unbiased first-person opinion based on actual experience and have someone ask me a question like that? I build Porsche's & open road/road race cars for a living so that may actually preclude me from being a complete idiot.

I replace all my bike tires every season regardless of wear just for piece of mind. I do not ride quietly and want all the protection I can get. My Triumph (with dyna beads) will only do 175mph and I also know this from firsthand experience. No worn tires, no patched tires, no cheap tires, my life is worth more than the savings.

I don't track my bikes (yet) because they are my escape from the track. I have spent way too much time on the track in my cars and customers cars and due to my experience I will never scrimp on tires even for my shop truck.

 

[MEBusa]

Dynabeads here!

I have just changed from the stock Bridge BT-015, to Avon Storm 2's. I loaded 1oz of dyna's in the front & 2ozs in the rear. I'm a moderate rider (while twisting the throttle up to 140 mph occasionally), and yes, I maintain about a 1/2" of chicken strips on both sides of my tires (That's what I do, & I have no problem with that).

My bike came from the factory, without any weights, & so I wanted to keep it that way. I don't like the look of having weights stuck to my rim (that's just me; to each his own). So dynabeads, for me was the perfect solution.

I've been riding about a week, with the beads (since the tire change), & have been as high as 120 mph (since the tire change); no issues so far. She rides just as smooth, from start to finish, as the day I bought her.

By reading through the arguments in this thread (or healthy discussion ) on the subject matter, it's apparent that "dynabeads" aren't for everyone. But then that goes along with any other subjects, concerning the busa (like "What's the best Air Filter to use?" ).

Still a great discussion though, so keep it going. That's what forums are for