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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Dyna Beads /cgi-bin/YaBB.pl?num=1247508464 Message started by ODSavage on 07/13/09 at 11:07:43 |
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Title: Dyna Beads Post by ODSavage on 07/13/09 at 11:07:43 http://www.innovativebalancing.com/index.html Anyone ever use this stuff? I did a forum search and came up with nothing. Thanks in advance. |
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Title: Re: Dyna Beads Post by rigidchop on 07/13/09 at 17:56:24 i know quite a few guys running them and they have nothing but good things to say about them. one even had a bent rim, and it rode smooth with them. when i get my next set of tires they are going in mine. |
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Title: Re: Dyna Beads Post by PTRider on 07/13/09 at 18:38:46 They work well for me. I transferred them when I put on new tires and tubes. Do be sure you check the air only with the tire valve rotated somewhere toward the upper part of the wheel. By the way, they went into my new rear tube with the 90° bent stem slowly but did go in. To get them into any valve stem, take your time and continuously tap the stem with something heavy--I used a #3 Phillips screwdriver shank to tap with. |
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Title: Re: Dyna Beads Post by Serowbot on 07/13/09 at 19:24:46 Seems to me,. that you will be riding a very imbalanced tire from a stop,.. up to 25mph.... every time you stop... For city riders, that could be half the time... |
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Title: Re: Dyna Beads Post by bill67 on 07/13/09 at 19:44:54 If your tire was balanced and you put them in how would you know it was better. |
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Title: Re: Dyna Beads Post by PTRider on 07/13/09 at 20:39:33 3C37323268695E0 wrote:
You won't. If it is balanced by any system, it is balanced, period, unless something changes. When I put my new tires on, I checked them on a bubble balancer. They were off. Instead of lead weights I used Dyna Beads. They ride smooth. About slow speeds...imbalance doesn't show up significantly at slow speeds unless the imbalance is really huge, which isn't likely to happen. I don't notice any changes as I go from a stop to whatever speed I'm riding at. It's smooth all the way. |
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Title: Re: Dyna Beads Post by Serowbot on 07/13/09 at 23:17:52 I'm saying that the beads themselves will create an imbalance by settling at the bottom of the tire at a stop... if this coincides with a natural imbalance in the tire, there will be double the effect, whether you perceive it or not... Enough beads to create a balance will be enough to create an imbalance... Why not just balance your tire properly to start with?... Definitely don't use "Slime" with the beads... Can you get condensation in a tire?... I'm not sure about that one... Avoid airing your tires on humid days?.... It's just a clever gimmick,... if the logic of the gimmick appeals,... you'll buy it. like those gas saving magnets and what-not... The good news is, this will have more effect than the magnets,... the bad is, this will have more effect than the magnets.... |
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Title: Re: Dyna Beads Post by voldigicam on 07/14/09 at 02:33:09 I suspect the success lies in 1) the ability of the beads to adapt to minor imperfections in balance more effectively than weights and 2) the ability to adapt to changing balance conditions (e.g., wear). I generally weight the opinions of those who have seen and used a product more highly than those who have not. I'm putting on a new front tire shortly (whenever it gets here) and will try the beads. |
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Title: Re: Dyna Beads Post by PTRider on 07/14/09 at 07:08:39 Here's a link to a truck balancer rig using the same techniques: http://www.centramatic.com/techfacts.html Moisture inside the tire doesn't matter with the balancing beads...unless its frozen. Large amounts of oil from a compressor will gum up the works. Conventional spin balancing is great. The Dyna Beads can be re-used in the next tire and the next to avoid additional expense. All we have to do is save the old tube, cut it open, and transfer the beads (or re-use the tube if it's good). |
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Title: Re: Dyna Beads Post by srinath on 07/14/09 at 08:17:35 I never balance my tires. I never feel any difference even with the sharp handling GS500 ... so maybe tires have gotten to the point of making balancing moot, so anything you goop up in there and does nothing seems to have done the "trick". I'd take a tire that is out of balance, run it, feel how it runs, then put in dyna beads and run it again. That I'll take as proof it does something. Cool. Srinath. |
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Title: Re: Dyna Beads Post by ODSavage on 07/14/09 at 10:43:54 Thanks for all the responses; I ordered them and will let you guys know how it turns out. They will be installed in new tube tires front and back. |
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Title: Re: Dyna Beads Post by ODSavage on 08/03/09 at 15:38:58 Dyna beads installed and the bike runs just fine. No wobble or anything so I would recommend it. |
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Title: Re: Dyna Beads Post by Gort on 08/03/09 at 16:04:18 Dyna beads were discussed at length here long ago. The general consensus at that time, and research of the Internet for comments by users, was a split decision. Some said the beads worked only at high speed, some said they didn't work at all and some said they worked. Seems to me there are unidentified variables involved here. Myself I didn't spend the $ on them because too many people reported that they didn't work, and I wasn't about to gamble with my money. If I bought them and they didn't work for me, then I'd have to pay for traditional balancing anyway. |
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Title: Re: Dyna Beads Post by bill67 on 08/03/09 at 16:53:06 6D66714354434547220 wrote:
Did you have wobble before you put then in or a problem. |
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Title: Re: Dyna Beads Post by bill67 on 08/03/09 at 16:57:08 Years ago when I use to put on alot of miles on, I changed a lot of tires,I left the old weights on and never balance the new ones and never felt them being out of balance,Course I was never driving at high speeds like over 75 miles an hour. |
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Title: Re: Dyna Beads Post by Serowbot on 08/03/09 at 17:05:01 Just mentally try to picture what's happening with the beads, if you do a emergency stop and quick turn... ever try to control a spinning gyroscope?... I'm sure the actual effect is much smaller, but.... I don't need that kind of help... |
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Title: Re: Dyna Beads Post by voldigicam on 08/03/09 at 18:49:26 Sometimes the strongest opinions are held by those with purely thought experience. What's a front wheel weigh? Add 1 oz of beads, how's that going to impact the gyroscope!! Not much, if any. I got a new front tire. Pulled off the weights. Mounted the heavy spot of the rim against the light spot of the tire. I rode the tire unbalanced up to 60 something. Clearly had a bit of a wonk, not a great deal. Couldn't tell much at all until 35. Tires are pretty good. Popped in 1 oz of dyna beads. No difference from takeoff. There's no thump thump of the beads. They must distribute pretty quickly. And the bike is dead smooth (at least as smooth as these things get) at speed. As far as thought experiments go, I find the concept of a dynamic balance that works around the entire wheel much more appealing than a fixed approximate balance by a lump of lead. Static balance isn't all that hot a thing. I'm pleased enough that I'm going to pop some in my rear wheel, too. I think I might have a little residual stuff going on there. Oh, and I'll pop the stuff into my truck tires, too. That will be a good test. They've worn to imbalance. Should have a pretty good idea of effectiveness once I do those installations. |
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Title: Re: Dyna Beads Post by Serowbot on 08/03/09 at 19:06:11 6970737B7678767C7E721F0 wrote:
and some people have "real world" experience of improved performance and gas mileage, by taping a magnet to the fuel line... or running helium in their tires, or removing their radio antenna....... etc... I'll start using it, when tire manufacturers start recommending it, instead of voiding warranties... not that tire warranties matter that much, but if you had an issue, legally, they would use that against you. |
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Title: Re: Dyna Beads Post by voldigicam on 08/03/09 at 19:31:02 Dynabead use voids warranties? Example? I can actually ride vehicles and feel what's going on. I can see debates over subtle effects. But just about anyone can feel an out of balance tire (even slightly out) and tell when that out of balance is resolved. The beads make perfect sense from a theoretical standpoint. A key problem is that people tend to like things they've purchased. And promote those things. And vice versa - ding the things they haven't purchased or have decided not to. What specific problems do those who have tried and don't like dynabeads point to? |
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Title: Re: Dyna Beads Post by PTRider on 08/03/09 at 19:47:05 Quote:
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Title: Re: Dyna Beads Post by Gort on 08/03/09 at 20:18:30 485E49544C59544F3B0 wrote:
and some people have "real world" experience of improved performance and gas mileage, by taping a magnet to the fuel line... or running helium in their tires, or removing their radio antenna....... etc... I'll start using it, when tire manufacturers start recommending it, instead of voiding warranties... not that tire warranties matter that much, but if you had an issue, legally, they would use that against you.[/quote] I must agree. Car manufacturers do everything they can to save pennies on every car they make. Lead weights are expensive because lead is classified as a hazardous material , and a variety expensive safety precautions are required in its manufacture. Used lead wheel weights are expensive to dispose of as they are classified as a hazardous waste, in many states, requiring strictly controlled disposal methods, at serious cost to the tire shops. If Dyna beads worked all the time, then the car manufacturers would have long since bought the patent, or at least licensed their use. Also, anything that worked that well would have made the news media by now, as the beads would eliminate a serious environmental problem (manufacture and disposal of toxic hazardous material and then waste, lead weights). If they always worked reliably, consumers would have known about this for some time now, via the media. Search the net, and you will find consumers stating pro and con opinions, based on their practical experience with the beads. This product does not work well for everyone, which is probably why Detroit won't use it, why tire manufacturers void your warranty (buy a set of new tires and refuse to let the store balance them because you intend to use the beads, and watch what they say to you), and why it hasn't caught on big time with the motoring public. |
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Title: Re: Dyna Beads Post by PTRider on 08/03/09 at 20:39:26 Here's info from a competitor to Dynabeads, Centrimatic: http://www.centramatic.com/testimonial.html As said above, the balancing beads don't work in low profile tires that are found on just about every car. Lead weights are cheaper than the beads, at least at retail. The Centrimatic type balancer is much more expensive than lead weights. |
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Title: Re: Dyna Beads Post by voldigicam on 08/04/09 at 03:52:59 I can see the beads having a difficult time on low profile tires. I haven't had any vehicles with low profile tires! Would be interesting to see some real testing. As to manufacturers not installing innovative things - well, that's not uncommon! Unlike magnets on fuel lines and so on, there's actual physical principles behind things like dynabeads. If the things don't work, then I can't see this happening: http://www.youtube.com/watch?v=eq263AYgyYg I can certainly see them working in light narrow tires and not in wide flat. |
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Title: Re: Dyna Beads Post by ODSavage on 08/04/09 at 09:36:03 To answer your question bill67 I installed the beads when I changed to new tires and tubes but I did remove lead weights I had on the rim. |
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