Ducati Monster Forum

Moto Board => Tech => Topic started by: Raux on March 16, 2009, 08:52:35 AM

Title: Bar End causing vibrations?
Post by: Raux on March 16, 2009, 08:52:35 AM
I picked up some bar ends nothing fancy, just AL
but lately my hand has been more numb. kinda like vibrating all the blood out. coudl the bar ends have caused this?
Title: Re: Bar End causing vibrations?
Post by: erkishhorde on March 16, 2009, 09:33:42 AM
The AL bar ends are likely lighter than the stock ones and change the frequency of the bar vibrations (they become higher frequency = more numbing). I had the same thing happen when I removed my Napoleon bar end mirrors.

I haven't found any fixes for this other than putting the heavy weight back on (go back to stock bar ends or get bar end mirrors).
Title: Re: Bar End causing vibrations?
Post by: NAKID on March 16, 2009, 10:04:45 AM
If you took off stock bar-ends and replaced them with these al, I can see some extra vibrations. But not if you added when there were none there before...
Title: Re: Bar End causing vibrations?
Post by: Raux on March 16, 2009, 12:17:51 PM
the stock are just the plastic plugs no weight. the AL are a bit heavier but not much.

Title: Re: Bar End causing vibrations?
Post by: NAKID on March 16, 2009, 06:01:25 PM
Quote from: Raux on March 16, 2009, 12:17:51 PM
the stock are just the plastic plugs no weight. the AL are a bit heavier but not much.



Oh, ok. on my S2R1000. There really should be no reason it started after the barend install then...
Title: Re: Bar End causing vibrations?
Post by: erkishhorde on March 16, 2009, 07:13:59 PM
Hmmm, I don't see why the bar ends would increase vibrations if they're heavier than stock either. Just out of curiosity, you're still running the stock bars or have you switched?
Title: Re: Bar End causing vibrations?
Post by: DuciD03 on March 16, 2009, 09:14:58 PM
Quote from: erkishhorde on March 16, 2009, 09:33:42 AM
The AL bar ends are likely lighter than the stock ones and change the frequency of the bar vibrations (they become higher frequency = more numbing). I had the same thing happen when I removed my Napoleon bar end mirrors.

I haven't found any fixes for this other than putting the heavy weight back on (go back to stock bar ends or get bar end mirrors).

I added bar end mirrors

add weight to my bars with 2 pieces of stainless steel rod  cut about 4" long and a little less diamater that the inside of the bar then wrapped it in electrical tape; dampened the vibrations well.
Title: Re: Bar End causing vibrations?
Post by: Buckethead on March 16, 2009, 10:21:07 PM
Quote from: erkishhorde on March 16, 2009, 07:13:59 PM
Hmmm, I don't see why the bar ends would increase vibrations if they're heavier than stock either. Just out of curiosity, you're still running the stock bars or have you switched?

"Flexible" tube clamped at one end and now has a weight at the other. Like waving a stick with a weight at the end. A heavy enough weight will damp vibration, but a light weight will make minor inputs more severe.
Title: Re: Bar End causing vibrations?
Post by: CDawg on March 17, 2009, 10:37:06 AM
Quote from: Raux on March 16, 2009, 12:17:51 PM
the stock are just the plastic plugs no weight. the AL are a bit heavier but not much.

Not true on the S4RS.  OEM bar ends on the S4RS are steel.  The reduction in weight when switching to AL is the cause for the vibration. 
Title: Re: Bar End causing vibrations?
Post by: erkishhorde on March 17, 2009, 12:32:55 PM
Quote from: CDawg on March 17, 2009, 10:37:06 AM
Not true on the S4RS.  OEM bar ends on the S4RS are steel.  The reduction in weight when switching to AL is the cause for the vibration. 

I thought Raux had a 696 in which case he wouldn't have the steel bar end.