hrdtduck
If your fork is tweaked (may not be visible even on a bench) in any way that
could cause a shimmy.try trading out the fork and see how it handles after
the swap
From: obra-bounces@list.obra.org [mailto:obra-bounces@list.obra.org] On
Behalf Of Max Kirchoff
Sent: Monday, February 02, 2009 11:48 AM
To: obra@list.obra.org
Subject: Re: [OBRA Chat] Fork/Frame Wobble-shimmy ....HELP!
Sorry forgot headset (thanks for reminding me craig)
Headset - threaded and seems to be tightened correctly. Feel fine and has no
detectable problems, pits, skips, loose-ness, or gaps.
Thanks
Max Kirchoff
http://www.maxmeansmore.com
http://www.maxisnow.com
On Mon, Feb 2, 2009 at 11:38 AM, Max Kirchoff wrote:
OBRAland,
Perhaps someone can give me some advice from experience or as a fitter.
I've got some bad wobble in my bike, specifically the frontend and mostly if
i move weight (remove my hands) from the handlebars. But I can feel it in
the bike slightly when on the bars as well. At certain speeds it gets real
crazy without my hands on the bars.
Of course the simple answer is, "Don't take your hands off the bars, dummy!"
But I feel like I should investigate this as it might become a problem at
higher speeds on distance rides.
My Setup:
1999 Schwinn Peloton
(probably not the culprit as alignment seems fine - also a 853 tubing bike,
which should be tougher than my problem-free track bike tubes right?)
Schwinn Peloton stock aluminum fork
(kinda sketchy - at about 250lbs total, im pushing my luck with this fork i
think - seems to have flex which I'm pretty sure it shouldn't but I don't
normally run aluminum forks - possible problem cause)
Mavic Cosmos 9sp rear
(another possible candidate although I cannot find problems with it when its
on the stand - mind you that's without 250lbs on it)
Xero 16spoke font
(rode this on my track bike previously, which felt solid as a rock, so not a
suspect)
Fit note - I'm used to a much more aggresive position and this frame is like
a LazyBoy comparitavley.
Could this just be a fit issue? Weight distrobution issue? Did I just put
together some sort of frankenstein of parts that all have bad resonance when
touching? Does the universe want me to give up riding bikes lighter than
20lbs? Do I just need to cough up for a new fork and see what happens?
Anyone got any low-costs tests or ideas?
Thanks.
Max Kirchoff
http://www.maxmeansmore.com
http://www.maxisnow.com