Subject: RE: high speed instability

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Okay I'll buy that. pay attention to loading, just like any other bike

They had the same problems with the police K bike beemers. too much junk
in the trunk, big screen on the front...high speed ...front end gets
light...wham.

-----Original Message-----
From: Greg Field [mailto:seen-@mac.com]
Sent: Friday, May 31, 2002 1:37 PM
To: Loopfram-@topica.com
Subject: Re: high speed instability

My understanding is that the instability happened on only a few bikes
and Guzzi totally disbelieved it until one of their own people
thoroughly checked out one of the wobblers to confirm that all the
obvious things (steering head bearings, swingarm bearings, wheel
bearings, and so on) were OK and then was seriously injured in a crash
when he test-rode it.

Guzzi then took that bike and a few other wobblers back to Italy. A test
rider was killed on one. After that, Guzzi and Berliner would take any
bike back that was a wobbler and destroy its frame.

As far as I was able to learn, Guzzi attributed the problem to an
undetermined set of individual factors on a few individual bikes that,
when combined with the police windshield and rear weight loading,
resulted in wobbles.

If your bike doesn't wobble by 90 mph, it probably never will. Then
again, Roy Harvey's Ambo wobbled once and pitched him without (as far as
I know) showing any earlier symptoms of a wobble, so maybe we should all
worry, or at least watch loading and consider ditching our police
shields.

Greg Field

On Friday, May 31, 2002, at 12:58 PM, Zerhackermann wrote:

I doubt that is the wheel that is wobbling. probably the tire getting a
slight grab. Around here we have grated briudges, rain grooves, plastic
glue on lines. all of them pull at a bike tire and make it feel like
something is wrong.

Never heard of an "infamous high speed wobble" on guzzis either...did I
miss something?

-----Original Message-----
From: scott kelso [mailto:fores-@conknet.com]
Sent: Friday, May 31, 2002 12:53 PM
To: Loopfram-@topica.com
Subject: high speed instability

I would like to know if any list members have experienced the infamous
high speed wobble on their loopframes and would be willing to share this
experience with the group.My eldo is currently shod with Conti Blitz
tires,and sports wixom bags,trunk and Bates 700 fairing.I have ridden
the bike at an indicated 90mph with no hint of instability,although i
can feel a little bobble in the rear tire when crossing over painted
lines on the highway at high speed.Im wondering if the reported episodes
of instability are a sudden event or are they caused by a dynamic set in
motion by a rear wheel bobble such as i feel on my bike when passing
slow moving vehicles on the highway.Would appreciate any info.Next
weekend at Gunstock Ski resort there is a vintage bike show&swap meet on
Sat.,vintage roadrace on Sun.,and an awesome hillclimb event on
Wed.Check out www.gunstock.com for info.Hope to see more than than one
loopeframe there this year.Will post pics in a couple weeks.Thanks Scott
K.

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<DIV>Okay
I'll buy that. pay attention to loading, just like any other
bike</DIV>
<DIV> </DIV>
<DIV>They
had the same problems with the police K bike beemers. too much junk in the
trunk, big screen on the front...high speed ...front end gets light...wham.
</DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>-----Original Message----- From: Greg Field
[mailto:seen-@mac.com] Sent: Friday, May 31, 2002 1:37
PM To: Loopfram-@topica.com Subject: Re: high speed
instability </DIV>My understanding is that the instability
happened on only a few bikes and Guzzi totally disbelieved it until one of
their own people thoroughly checked out one of the wobblers to confirm that
all the obvious things (steering head bearings, swingarm bearings, wheel
bearings, and so on) were OK and then was seriously injured in a crash when he
test-rode it. Guzzi then took that bike and a few other wobblers back
to Italy. A test rider was killed on one. After that, Guzzi and Berliner would
take any bike back that was a wobbler and destroy its frame. As far as
I was able to learn, Guzzi attributed the problem to an undetermined set of
individual factors on a few individual bikes that, when combined with the
police windshield and rear weight loading, resulted in wobbles. If your
bike doesn't wobble by 90 mph, it probably never will. Then again, Roy
Harvey's Ambo wobbled once and pitched him without (as far as I know) showing
any earlier symptoms of a wobble, so maybe we should all worry, or at least
watch loading and consider ditching our police shields. Greg
Field On Friday, May 31, 2002, at 12:58 PM, Zerhackermann
wrote: 
<BLOCKQUOTE><?fontfamily><?param Courier><?color><?param 0000,0000,FFFF><?smaller>I
doubt that is the wheel that is wobbling. probably the tire getting a slight
grab. Around here we have grated briudges, rain grooves, plastic glue on
lines. all of them pull at a bike tire and make it feel like something is
wrong.<?/smaller><?/color><?/fontfamily> <?fontfamily><?param Courier><?color><?param 0000,0000,FFFF><?smaller>Never
heard of an "infamous high speed wobble" on guzzis either...did I miss
something?<?/smaller><?/color><?/fontfamily> <?smaller>-----Original
Message----- From: scott kelso
[mailto:fores-@conknet.com] Sent: Friday, May 31, 2002 12:53
PM To: Loopfram-@topica.com Subject: high speed
instability I would like to know if any list members have experienced
the infamous high speed wobble on their loopframes and would be willing to
share this experience with the group.My eldo is currently shod with
Conti Blitz tires,and sports wixom bags,trunk and Bates 700 fairing.I have
ridden the bike at an indicated 90mph with no hint of instability,although i
can feel a little bobble in the rear tire when crossing over painted lines
on the highway at high speed.Im wondering if the reported episodes of
instability are a sudden event or are they caused by a dynamic set in motion
by a rear wheel bobble such as i feel on my bike when passing slow moving
vehicles on the highway.Would appreciate any info.Next weekend at Gunstock
Ski resort there is a vintage bike show&swap meet on Sat.,vintage
roadrace on Sun.,and an awesome hillclimb event on Wed.Check out <?color><?param 1999,1999,FFFF>www.gunstock.com<?/color> for
info.Hope to see more than than one loopeframe there this year.Will post
pics in a couple weeks.Thanks Scott
K.<?/smaller> </BLOCKQUOTE></BLOCKQUOTE>

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Subject: RE: high speed instability

Author: Zerhackermann

Date: May 31, 2002, 1:59 PM

Post ID: 1710354807

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