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Old 03-11-2013, 09:17 AM   #31
GPrairie_Rider
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You think a high speed wobble is bad on a HD? Take my XR get it up to about 100mph and have fun with that wobble.
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Old 03-11-2013, 09:24 AM   #32
eatpasta
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Quote:
Originally Posted by Cjsgptx View Post
You think a high speed wobble is bad on a HD? Take my XR get it up to about 100mph and have fun with that wobble.
I had a 650R for years and it never wobbled at high speed unless it was in the sand.....
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Old 03-11-2013, 09:27 AM   #33
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Quote:
Originally Posted by Dranrab Luap View Post
How should the preload be adjusted to ensure it doesn't happen. I wouldn't know where to begin.
Cranking up the pre-load to compensate for the load drastically reduces the possibility of going into a wobble. (on all makes) My limited time for travel always had me packing in a hurry and at times I would forget to make adjustments to the pre-load for the load I was carrying.

(two of the bikes I mentioned were not mine. they were friends bikes they ask me to ride to help them sort out the issue)

I no longer make that mistake.
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Old 03-11-2013, 09:56 AM   #34
Tripped1
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Quote:
Originally Posted by Worroll View Post
Death wobble? Has anyone ever actually crashed because of a HD wobble?
Go check the HD forums and yes, a number have.
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Old 03-11-2013, 10:22 AM   #35
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Quote:
Originally Posted by eatpasta View Post
I had a 650R for years and it never wobbled at high speed unless it was in the sand.....

The L will do it.
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Old 03-11-2013, 10:38 AM   #36
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Quote:
Originally Posted by Cjsgptx View Post
The L will do it.
That's scary sounding at a TON
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Quote:
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I was SO high, I could have hunted duck with a rake
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MX stuff isn't my cup of tea, but falling down the side of a mountain is
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Old 03-11-2013, 10:41 AM   #37
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Originally Posted by eatpasta View Post
That's scary sounding at a TON

An L doing a ton...


Increasing rear preload on a wobbler will make it worse, it needs stiffer front springs.
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Old 03-11-2013, 11:01 AM   #38
eatpasta
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Originally Posted by larryboy View Post
An L doing a ton...
is it that far fetched??



Ive only ridden one a few times so I really wouldnt know
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Quote:
Originally Posted by Burnszilla
I was SO high, I could have hunted duck with a rake
Quote:
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MX stuff isn't my cup of tea, but falling down the side of a mountain is
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Old 03-11-2013, 11:58 AM   #39
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According to this video from Dunlop, all motorcycles will do it under the right circumstances. And if you search "motorcycle wobble" in youtube, there are tons of videos of many differents makes and models experiencing wobbles.

http://www.youtube.com/watch?feature...&v=fvsDIq3WwVA
The discussion of wobble and weave begins at about 4:30 into the video.
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Old 03-11-2013, 12:15 PM   #40
eatpasta
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Originally Posted by davevv View Post
According to this video from Dunlop, all motorcycles will do it under the right circumstances. And if you search "motorcycle wobble" in youtube, there are tons of videos of many differents makes and models experiencing wobble..
I would imagine 20 years of tire and suspension technology has all but done away with most of what is seen in that video. I've never experienced anything like that on any of my bikes except with some old Honda CB's with worn front tires.
I take a lot of pictures on the highway on the GS and have never had an issue
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We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time.
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Quote:
Originally Posted by Burnszilla
I was SO high, I could have hunted duck with a rake
Quote:
Originally Posted by VxZeroKnots View Post
MX stuff isn't my cup of tea, but falling down the side of a mountain is
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Old 03-11-2013, 09:40 PM   #41
Tripped1
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Quote:
Originally Posted by davevv View Post
According to this video from Dunlop, all motorcycles will do it under the right circumstances. And if you search "motorcycle wobble" in youtube, there are tons of videos of many differents makes and models experiencing wobbles.

http://www.youtube.com/watch?feature...&v=fvsDIq3WwVA
The discussion of wobble and weave begins at about 4:30 into the video.

Yeah, if I have any wobble its time to start pulling the forks and checking headbearings. That 96 Ultra WAS the last time I felt a bike wobble, and I fixed that.

Quote:
Originally Posted by eatpasta View Post
I would imagine 20 years of tire and suspension technology has all but done away with most of what is seen in that video. I've never experienced anything like that on any of my bikes except with some old Honda CB's with worn front tires.
I take a lot of pictures on the highway on the GS and have never had an issue
More like 30 years.

.....oh wait we are talking about Harleys 30 years is about right
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Old 03-12-2013, 04:21 AM   #42
131unlimited
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I had an 89 FLHT for a while. It sucked big time with air in the shocks, wobbled like crazy and wandered all over the place. Replaced them with a pair of progressive suspenion 412's and replaced my worn out clevis blocks on the swingarm. That transformed the bike into a very well behaved bagger that I rode for many, many years with no worries at all with regards to wobbleing at speed.

Have an 11 SG now. The frame geometry is different, and it defintly handles way better than my modified 89 did. Rented and rode a 07 FLHT for 2 weeks straight years before buying the 11 SG. That bike handled great, I definitly did not follow any posted speed limits in Arizona or Nevada while i had it and never had an issue with stability or taking turns at speed. YMMV...
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Old 03-12-2013, 04:59 AM   #43
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Quote:
Originally Posted by EricD10563 View Post
Try a 1985 V65 Sabre at speed with a 120+ HP in a 1980's frame, front leading forks and a wheel base as long as a Goldwing, that will scare the crap out of you; the Harley is easy
Try a Magna, with a big old Vetter WindJammer mounted up high and forward on those spagetti tube frame mounts of theirs. Now *that* is scarry wobble!

Don't have the saddle time yet on my Harley, but two things come to mind with them.

One is the head bearing load. Stock specs call for very free movement. I'd think tightening it down a wee bit would help, just like it does on every other bike.

Second is the rear swing arm bushings. They are soft, that's why so many people have come up with braces for them. I wouldn't be surprised if a lot of wobble is coming from these bushings.
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Old 03-12-2013, 05:54 AM   #44
anotherguy
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Shit man where's JerryH? he knows all about Harleys and surely could tell us how and why. As well as tell us the big fix too. Well where are ya?
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Old 03-12-2013, 06:09 AM   #45
sebastianp
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California Highway Patrol encountered the death wobble when they were testing and evaluating their two-wheelers:

http://www.youtube.com/watch?v=Gmw6QppXnEY
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