Most people have good results with them.
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I've used Dyna beads in the past and I had a front tire that would bounce at 72 to 78 mph. The beads did nothing to help that tire.

 

Dynabeads work! I've been using them over two years. Running them in the tubed tires on my 2010 RK. I posted some pics in a previous thread of a Tube I took out when I replaced my rear tire at 17K miles. I cut the old tube open to show the Dynabead's didn't wear the inside like had been posted.

 

Been using Dyna Beads for going on six years, first on a suzuki c90 with bridgestones, and on an '07 FLHR with Dunlops and now Metzelers. Two vastly differently frame and drive trains and a mix of tires and never had a problem. If you have a shimmy with the beads it's usually time to change the tires from wear. The beads are so cheap that the shipping costs more than the beads so I buy enough for two or three changes at a time.

 

Like the man said earlier: 1 oz in the front tire and 2 oz in the rear and you are good to go. I have had beads in my Ultra for the last two tire changes and absolutely zero problems. It is nice to have your tires re- balanced each time you pull up to a stop. I can not prove it but I suspect you get increased tire mileage using beads.

 

I tried them for the first time last week after battling a tire balancing issue. They WORKED for me. Bike is now riding the smoothest it ever has..

 

They don't work well on out of round tires, I found out just recently. I put the DB in about the end of June, put them in & it made no difference. Well my rear tire (thought it was my front that I was having problems with) needed to be replaced do to no tread & I noticed that the tire was out of round. Put a new tire on w/DB & it is back to smooth as can be.

Toby

 

thanks for all your input. I'll be picking up some tire irons and dyna beads shortly... time to save myself some money on stuff that I can do...

 

Running them right now.

 

One question I have, is it possible to put too many beads in a tire? If I'm understanding the physics of the beads, it shouldn't matter as long as you have enough. More than enough wouldn't matter because they'll distribute themselves equally where they need to be anyway?