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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: frodef on August 10, 2011, 06:50:09 PM

Title: Balancing the rear wheel
Post by: frodef on August 10, 2011, 06:50:09 PM

I've just changed tires on my K75. I'd like to balance them too with the balancer thingy I have, and while it worked well on the front wheel, it didn't fit the rear (drum brake) wheel at all. The center hole is much to wide (and short). It seems to me I'd need two conical discs of sufficient diameter (and a 12 mm center hole to fit the 12 mm balancer bar) to make it work. I thought perhaps this is a problem others have seen and solved? Like, is there some sort of balancer adapter available?

Here's me balancing the front wheel:

(http://frodef.files.wordpress.com/2011/08/photo-10-08-11-18-42-38.jpeg)

Title: Re: Balancing the rear wheel
Post by: mystic red on August 10, 2011, 07:59:59 PM

This is what I use. Read this. (http://www.motobrick.com/index.php?topic=44.0)
Notice in the picture the different size to fit the rear.
His web site is listed there if you're using a 1/2 inch bar. I think that's what it is.
The snake oil salesmen will be along shortly. :D

Title: Re: Balancing the rear wheel
Post by: frankenduck on August 10, 2011, 08:05:03 PM

Quote from: mystic red on August 10, 2011, 07:59:59 PM

The snake oil salesmen will be along shortly. :D

Luddite.

Title: Re: Balancing the rear wheel
Post by: johnny on August 10, 2011, 08:29:45 PM

greetings frodef...

static balancing... i barely remember when they used to do that...

dynamic balancing... its not smoke n mirrors anymore... ride-on bro n dont look back (http://www.ride-onshop.com/Products-Motorcycles.html)...

j o

Title: Re: Balancing the rear wheel
Post by: Rick G on August 10, 2011, 09:37:45 PM

I have not tried a drum rear wheel but I do all the disc rears with a dynamic ballancer, it is especially good on the 4.5in RS wheel.

Title: Re: Balancing the rear wheel
Post by: frodef on August 11, 2011, 04:38:25 AM

Oh, I'd completely forgotten about that thread..  ::)  Sorry to stir up that particular kettle. I don't really remember why, but I ended up getting a static balancer. Thanks Mysic, I suppose Parne's part "BA12" is what I'm looking for. Guess I'll have a second look at those beads too.

Title: Re: Balancing the rear wheel
Post by: wmax351 on August 11, 2011, 01:17:02 PM

Dyna Beads work fine for me. The physics behind it is correct. The Beads disperse to the lowest energy configuration, being balanced.

Title: Re: Balancing the rear wheel
Post by: frankenduck on August 11, 2011, 01:51:18 PM

Quote from: wmax351 on August 11, 2011, 01:17:02 PM

Dyna Beads work fine for me. The physics behind it is correct. The Beads disperse to the lowest energy configuration, being balanced.

But they wouldn't work on Mystic Rod's fire engine because he doesn't understand the physics. :P