Topic: Ever heard of dynabeads?

[SiliconDoc]

I already explained this earlier.

Boy howdy!

Oh, explained what ? Let's have the post number. I'm willing to be convinced.

http://forums.sohc4.net/index.php?topic=52136.msg632112#msg632112

Not the whole story, but enough of it to matter.

Well, I'll disagree again. If there's enough water in any unbalanced washing machine to float the clothes about and it spins as it drains, it will balance the load all by itself.
A washing machine generally becomes unbalanced when a chunk of clothes or a blanket is so big it catches or gets mushed against the center post swisher.
The clothes and water are just like the dynabeads inside the tire - washing machines almost always "self balance" by gradual distributional rotation of the load, as the side moving away with weight "slips" the clothes past, and the side moving toward center that is lighter CATCHES the clothes and water.
Same thing the dynabeads do.
When they hit the area moving away from center inside the tire, they SLIP and are caught by the area closer to center, balancing the weight distribution.
Close enough for explanation purposes.

[BVCB650]

Little lead is way cheaper than beads. They saved millions by using the lead.

I would like to know how you came to that conclusion, apart from the fact that lead is getting more and more expensive, what about the cost of the balancing equipment and time taken to balance every wheel on every bike they produce. It would be way more simple and cost effective to use these beads if they were a cure to the balancing problem. Lead balancing is a much more expensive process.

Mick

I was going by the few cents wheel weight cost.

[Retro Rocket]

Little lead is way cheaper than beads. They saved millions by using the lead.

I would like to know how you came to that conclusion, apart from the fact that lead is getting more and more expensive, what about the cost of the balancing equipment and time taken to balance every wheel on every bike they produce. It would be way more simple and cost effective to use these beads if they were a cure to the balancing problem. Lead balancing is a much more expensive process.

Mick

I was going by the few cents wheel weight cost.

Yes i know but there's more too it than that...

Mick

[SiliconDoc]

Well, I'll take my MOLECULAR FORCE and stretchinging bad self and show my way to the door (sans dynabeads).

Stand back boys, we are clearly dealing with a mental force of which none of you have seen before or after!!

No use to argue anymore!!

Can't you see his crystal clear understanding of molecular bonding and MOLECULAR FORCE?? And stretchinging??

Ok, let me put it another way. The rubber stretches. The beads are not attached, and are not pulled outward in the stretching process of the tire, they slip past it and catch hard with "the braking power" of friction on the tire side opposite that is closer to the rim- skidding to a stop and sticking there- effecting a balance.


Ok.

[BVCB650]

Little lead is way cheaper than beads. They saved millions by using the lead.

I would like to know how you came to that conclusion, apart from the fact that lead is getting more and more expensive, what about the cost of the balancing equipment and time taken to balance every wheel on every bike they produce. It would be way more simple and cost effective to use these beads if they were a cure to the balancing problem. Lead balancing is a much more expensive process.

Mick

I was going by the few cents wheel weight cost.

Yes i know but there's more too it than that...

Mick

I'm mostly certain that manufacturers would do things as cheaply as possible.

[mlinder]

I already explained this earlier.

Boy howdy!

Oh, explained what ? Let's have the post number. I'm willing to be convinced.

http://forums.sohc4.net/index.php?topic=52136.msg632112#msg632112

Not the whole story, but enough of it to matter.

Well, I'll disagree again. If there's enough water in any unbalanced washing machine to float the clothes about and it spins as it drains, it will balance the load all by itself.
A washing machine generally becomes unbalanced when a chunk of clothes or a blanket is so big it catches or gets mushed against the center post swisher.
The clothes and water are just like the dynabeads inside the tire - washing machines almost always "self balance" by gradual distributional rotation of the load, as the side moving away with weight "slips" the clothes past, and the side moving toward center that is lighter CATCHES the clothes and water.
Same thing the dynabeads do.
When they hit the area moving away from center inside the tire, they SLIP and are caught by the area closer to center, balancing the weight distribution.
Close enough for explanation purposes.

OK
I agree that some of what you said happens, and it has some effect.
I'd go into this further but it'd be pointless.

[Retro Rocket]

Little lead is way cheaper than beads. They saved millions by using the lead.

I would like to know how you came to that conclusion, apart from the fact that lead is getting more and more expensive, what about the cost of the balancing equipment and time taken to balance every wheel on every bike they produce. It would be way more simple and cost effective to use these beads if they were a cure to the balancing problem. Lead balancing is a much more expensive process.

Mick

I was going by the few cents wheel weight cost.

Yes i know but there's more too it than that...

Mick

I'm mostly certain that manufacturers would do things as cheaply as possible.

I agree, so why not use the dyna beads? They are quicker to fit, cheap, and save the companies hundreds of thousands by eliminating the need for expensive balancers, speeding up the whole process. You can't tell me that lead weights are cheaper and easier to use, thats just not the case. I have worked in a couple of bike shops and fitted and balanced plenty of bike tyres and i can tell you that if all i had to do was slip in some beads while fitting the tyre it would be done in half the time. Time also = money.

Mick

[SiliconDoc]

Little lead is way cheaper than beads. They saved millions by using the lead.

I would like to know how you came to that conclusion, apart from the fact that lead is getting more and more expensive, what about the cost of the balancing equipment and time taken to balance every wheel on every bike they produce. It would be way more simple and cost effective to use these beads if they were a cure to the balancing problem. Lead balancing is a much more expensive process.

Mick

I was going by the few cents wheel weight cost.

Yes i know but there's more too it than that...

Mick

I'm mostly certain that manufacturers would do things as cheaply as possible.

I agree, so why not use the dyna beads? They are quicker to fit, cheap, and save the companies hundreds of thousands by eliminating the need for expensive balancers, speeding up the whole process. You can't tell me that lead weights are cheaper and easier to use, thats just not the case. I have worked in a couple of bike shops and fitted and balanced plenty of bike tyres and i can tell you that if all i had to do was slip in some beads while fitting the tyre it would be done in half the time. Time also = money.

Mick

How are they going to get them out of the tubeless tires when they change them ?
How are they going to explain that the tires are off balance at stop, and slow speed, and when locking the break, when turning a slower corner decellerating or braking, to the lawyers and insurance companies and ambulance chasers ?
It IS on again off again when riding.

How are they going to get those *amned! thousands of beads out of the crevices and holes in their tires changers, and how many technicians are going to sue when they slip and fall on them in the shop ?
Then every place is going to lose their exhorbitant tire balancing machine money, which is a good chunk nowadays, ten dollars per car tire here, some 15.
Then there's that great sales on the manufacturing the machine.
Probably Wal Mart lobby alone has crushed the idea.

[BVCB650]

It's all about the Yen.

[SiliconDoc]

I already explained this earlier.

Boy howdy!

Oh, explained what ? Let's have the post number. I'm willing to be convinced.

http://forums.sohc4.net/index.php?topic=52136.msg632112#msg632112

Not the whole story, but enough of it to matter.

Well, I'll disagree again. If there's enough water in any unbalanced washing machine to float the clothes about and it spins as it drains, it will balance the load all by itself.
A washing machine generally becomes unbalanced when a chunk of clothes or a blanket is so big it catches or gets mushed against the center post swisher.
The clothes and water are just like the dynabeads inside the tire - washing machines almost always "self balance" by gradual distributional rotation of the load, as the side moving away with weight "slips" the clothes past, and the side moving toward center that is lighter CATCHES the clothes and water.
Same thing the dynabeads do.
When they hit the area moving away from center inside the tire, they SLIP and are caught by the area closer to center, balancing the weight distribution.
Close enough for explanation purposes.

OK
I agree that some of what you said happens, and it has some effect.
I'd go into this further but it'd be pointless.

Well you went into it and claimed it's not as precise a balancing, to be nice, or it just can't work at all in the outer limit of what you said, due to that restriction.
If one wants to argue it has an error factor larger than a good balance weight setup, one wins that at stop and getting up to speed, probably on strong braking and acelleration, hard bumps, etc.
 The site itself claims a few seconds to stabilize, but doesn't exactly claim that it is from a dead stop in the link another poster provided, and doesn't say if it is at harsh speed changes or over bumps, etc. when it has a minor "recalibraton", but no doubt it does.

[Retro Rocket]

How are they going to get them out of the tubeless tires when they change them ?

Surely they would all go to the bottom of the tyre once the bead is broken and the tyre is removed by the tyre machine all you would have to do is scoop them all out. If these are such a wonderful thing then i see it as no problen to fashion up a small scoop to get them out....quite simple really.

How are they going to epxlain that the tires are off balance at stop, and slow speed, and when locking the break, to the lawyers and insurance companies and ambulance chasers ?

Whats your point here? now you don't like them??

How are they going to get those *amned! thousands of beads out of the crevices and holes in their tires changers, and how many technicians are going to sue when they slip and fall on them in the shop ?

I see,all tyre fitters are incompetent. After reading some well thought out posts this wasn't one of them. Don't you think that the same guys could slip on the soap they use to fit these tyres or on a nut or bolt or screwdriver.!!
Over any given period of time these things would save the auto manufacturers millions of dollars and it doesn't take a degree to work that out.

Mick

[BVCB650]

I DIDN'T COUNT THEM, BUT 1 OZ OF THEM COULD PROBABLY FIT IN A TABLESPOON. Sorry bout the caps.

[1974CB750rider]

I think i'll spice this up since so many people on here are concerned about hard core facts instead of just trying them and say it works for me or not.  I say Elvis isn't dead and he went into hiding because he testifyed agaist the mob and there is a wax figure in his coffen but the people in charge of his grave site will not let it be dug up to see whats in it. We never walked on the moon either all that stuff they showed on tv was just a secret movie set in area 51. LOLOLOLOLOLOL

[mlinder]

Does it make me a bad person that I can't stop chuckling?

[Retro Rocket]

The site itself claims a few seconds to stabilize, but doesn't exactly claim that it is from a dead stop in the link another poster provided, and doesn't say if it is at harsh speed changes or over bumps, etc. when it has a minor "recalibraton", but no doubt it does.

The site also says that they are no good for racing and gives some bull#$%* excuse about race tyres are softer on the inside so they won't work properly. This is just crap, i just went into the garage and looked at the racing slicks i have and compared them to the street tyres i have and they both look and feel identical on the inside. If these things are no good for racing then i doubt they are that good anyway. Some of us still ride hard and this point in particular is enough for me to give them a big miss. Also, how many of you guys using these have ground down the inside part of the valve inside your tyre? It also says you should do this or it doesn't work properly.

Mick

[BVCB650]

I think i'll spice this up since so many people on here are concerned about hard core facts instead of just trying them and say it works for me or not.  I say Elvis isn't dead and he went into hiding because he testifyed agaist the mob and there is a wax figure in his coffen but the people in charge of his grave site will not let it be dug up to see whats in it. We never walked on the moon either all that stuff they showed on tv was just a secret movie set in area 51. LOLOLOLOLOLOL

Well, they did mispell his name on the stone.

[BVCB650]

The site itself claims a few seconds to stabilize, but doesn't exactly claim that it is from a dead stop in the link another poster provided, and doesn't say if it is at harsh speed changes or over bumps, etc. when it has a minor "recalibraton", but no doubt it does.

The site also says that they are no good for racing and gives some bull#$%* excuse about race tyres are softer on the inside so they won't work properly. This is just crap, i just went into the garage and looked at the racing slicks i have and compared them to the street tyres i have and they both look and feel identical on the inside. If these things are no good for racing then i doubt they are that good anyway. Some of us still ride hard and this point in particular is enough for me to give them a big miss. Also, how many of you guys using these have ground down the inside part of the valve inside your tyre? It also says you should do this or it doesn't work properly.

Mick

My instructions said to get a different core or blow out by adding air before checking pressure. Nothing more.

[mlinder]

I'm usin 'em on my race bikes next season. Good enough for you guys on the road, good enough for me on the track!

[Retro Rocket]

We strongly advise against using Dyna Beads in any vehicle used for racing, for any application involving cornering at high speeds, or in tires placed under high acceleration beyond normal highway use.

This is in one of their pdf files. So it definitely is a big no no for me.

Mick

PS....here's the link for the non believers..
http://www.innovativebalancing.com/LowProfileTires.pdf

[Markcb750]

I'm usin 'em on my race bikes next season. Good enough for you guys on the road, good enough for me on the track!

Damn your getting old....


Make sure they give you a decal for your helmet.

[mlinder]

I'm usin 'em on my race bikes next season. Good enough for you guys on the road, good enough for me on the track!

Damn your getting old....


Make sure they give you a decal for your helmet.

Members of my species live over 5000 years. I'm not even middle aged yet.

[Markcb750]

I'm usin 'em on my race bikes next season. Good enough for you guys on the road, good enough for me on the track!

Damn your getting old....


Make sure they give you a decal for your helmet.

Members of my species live over 5000 years. I'm not even middle aged yet.

What are you, a Druid?  Whats a Druid doing with a biblical name like Mark?


Did you know Sir Issac Newton? He sorta got the whole mass, acceleration, force thing straightened out.

[BVCB650]

Actually, Albert straightened him out.

[Achmed]

I don't see how you guys can even attempt to engage this guy. I would be reduced to a pile of flubber--wait! maybe that's what they're made out of!

[Achmed]

Albert would have spent his life much differently if he didn't have Newton's shoulders to stand on.