Head shake/tank slap?

[muleskinner]

What's wrong with good old fashioned wheel weights? Why do we try to recreate the wheel over and over? I know,,,,progress,,,,,.

 

[CWCobra]

I have the same problem over 100 Mph and my tires are speed balanced.

Front tire: Metz
Rear tire: Riken Raptor

I have a new set of Metz's that will eventually be installed and was going to use the dyna beads. I will definitely want to see how the this comes out.

Here is info on Dyna Beads if anyone is interested.

Dyna Beads for Motorcycle Riders and Dealers

I have Shinko on front, General Altimax on rear.

CW

 

[CWCobra]

I'm with Gary on this one, you need more dyna beads. Your tire could have a little flaw in it that would cause you to use more weight. I've read on the VTX board of this exact problem, the guy installed another ounce of dyna beads and problem solved.

Here's the chart
Tire Balancing Charts for Light Truck, Commercial and Motorcycles

Well there you go!!!
After looking at the chart, I need to DOUBLE the amount of beads. I put 1.5 oz in rear; s/be 3 oz. I used 1 oz. in front; s/be 2 oz.

Thanks, 1059!!

CW

 

[CWCobra]

What's wrong with good old fashioned wheel weights? Why do we try to recreate the wheel over and over? I know,,,,progress,,,,,.

Nothing wrong with weights, except I don't have a balancer, don't have the weights, and don't care for the look of weights glued to rims.

On the other hand, I have plenty of Dyna Beads, can install them myself, and they are hidden inside the wheel.

Now, later, if I find that Dyna Beads are not effective as a balancing option, I promise I'll go back to the lead weights.

Not re-inventing the wheel...just modifing it slightly

CW

 

[Battersea]

I would be interested to know how you get on with this system.

I'm finding it difficult to understand quite how it works, especially with a tyre as wide as that fitted on the rear of a Rocket. Centrifugal forces are going to be quite high at speed and the beads must surely migrate to the centre of a radiused tyre profile. When this happens how are the off center discrepancies balanced in the way that they would with weights balanced dynamically?

 

[GPMAZ]

I have Shinko on front, General Altimax on rear.

CW

I didn't realize you had mismatched tires. Sorry, no experience with that type of setup. Good luck.

 

[mully95]

I have Shinko on front, General Altimax on rear.

CW

I didn't realize you had mismatched tires. Sorry, no experience with that type of setup. Good luck.

This going to sound like I'm flaming the car tire again...... but I didn't have head shake or tank slap going on UNTIL I installed a car tire on the rear. What would cause this with the CT if it is the CT?????

Oh yeah I almost forgot.... I noticed my front Metz is getting cupped so I think that is what is causing it. I wished I had felt my front tire BEFORE I installed the CT.

Thanks for the info on the Dyna beads.... I would have probably not used enough myself.

 

[Triple Trouble]

I had a similar problem when I went darkside. I never got it sorted but the problem went away when I installed a pair of Avon Cobras. I did ride briefly with the Avon on the front and the DS rear and the bike felt much better than with the worn Metz though I didn't try it over 100mph. I'm now completely confident again at any speed.

 

[mully95]

Well there you go!!!
After looking at the chart, I need to DOUBLE the amount of beads. I put 1.5 oz in rear; s/be 3 oz. I used 1 oz. in front; s/be 2 oz.

Thanks, 1059!!

CW

Where did you get the beads if you don't mind me asking???

I will need some not to long from now.

 

[zenbiker]

Take the tire off, dump the beads and have the wheel dynamically balanced.