W650Riders@groups.io

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#188363
Edited

Hi all. Not a new topic I'm sure..

I moved to a 16t countershaft sprocket and 120/90 rear on my 650. Speedo is spot on with GPS now but I feel vibration has gone crazy. My right thumb often goes numb or close to it.

I've?got the W800 cafe bars on it and it occured to me that using some sort of rubber shims rather than aluminum may help.

Experience with this?

Bob Lombardi

#188364

It might be the bars.??

Is there a way to add weight inside or add weighted mirrors that mount on the inside of the ends.

That would change the residence and maybe make the vibration go away.

I have the same gearing and tires on mine without any problems.?? I have the European low bars.

On Thursday, July 14, 2022 at 10:17:23 AM PDT, drewwils via groups.io <drewwils@...> wrote:

[Edited Message Follows]

Hi all. Not a new topic I'm sure..

I moved to a 16t countershaft sprocket and 120/90 rear on my 650. Speedo is spot on with GPS now but I feel vibration has gone crazy. My right thumb often goes numb or close to it.

I've?got the W800 cafe bars on it and it occured to me that using some sort of rubber shims rather than aluminum may help.

Experience with this?

#188365

Similar vibration problems on a different bike (Kawasaki Ninja 650R vertical twin) and the only thing that worked was a bar snake. Fiddled around with steel and lead weights at ends, just changed the resonance. Bar snake killed it.

Dennis

bikeless in Petaluma

On Thursday, July 14, 2022 at 04:28:06 PM PDT, Bob Lombardi <chiplom@...> wrote: