Hi Ron,
In the video, going left is faster than going right. The tires are
about the same pressure, although it seems that the 20" is software,
probably because it takes more hit. Some instance you can see that
the rear 24" takes more hit then then front, at slower speed.
The 20" feels rougher, but I can't feel any difference in steering
disturbance vs. the 24". Will need compare random bumps on the trail...
Vi
------------------------
Hi Vi,
Can you give us a reaction, maybe also on the python list of what your
subjective feeling was while riding the different bikes? Great vids
in general from you by the way!
regards,
Ron Hongsermeier
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*From:* Vi Vuong <vi_vuong@xxxxxxxxx>
*To:* "python@xxxxxxxxxxxxx" <python@xxxxxxxxxxxxx>
*Sent:* Thursday, November 24, 2011 11:16 PM
*Subject:* [python] Re: Front suspension update
Hi Patrick,
It seems stiffer, but I have to get on the same dirt trail to see.
http://youtu.be/jY9ddGeVl9w
Vi
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*From:* Patrick van Gompel <patrick_van_gompel@xxxxxxxxxxx>
*To:* python@xxxxxxxxxxxxx
*Sent:* Thursday, November 24, 2011 10:16 AM
*Subject:* [python] Re: Front suspension update
Wow, that was a quick modification! Nice use of some old
handle bars. And glad to see the idea was of some help.
Do you notice any difference when riding / hitting bumps?
Patrick
------------------------------------------------------------------------
Date: Wed, 23 Nov 2011 20:17:42 -0800
From: vi_vuong@xxxxxxxxx
Subject: [python] Re: Front suspension update
To: python@xxxxxxxxxxxxx
Thanks Steffen and Patrick for concerns and ideas. I have
added two tubes (handle bars) as Patrick suggested, which also
strengthens the shock joint. I promise not to do any jumping
unless in controlled testing (safe). The original goal is to
see how much front suspension can reduce road disturbance to
steering, which perhaps can compensate for smaller wheels /
tires...
Steffen's idea is similar to this full suspension python built
in 2008,
http://www.flickr.com/photos/python_uploads/2827143639, which
I wish I saw before building mine. This design seems stronger
/ lighter / more compact. Any thoughts?
Vi
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*From:* Steffen Risse <big.skangster@xxxxxxxxxxxxxx>
*To:* python@xxxxxxxxxxxxx
*Sent:* Wednesday, November 23, 2011 7:43 AM
*Subject:* [python] Re: Front suspension update
Hello Vi,
the idea is nice and brings some ideas for me too, but
Patrick is absolute right when he says that the system
doesn't looks very stable. I'm working with welding every
day, and when I saw the point where the frame broke, I
didn't wondered about the crack. The frame is relative
slim at that point and your weld seems are for sure no
beauties. I like all your projects, as they include so
many clever ideas, and I don't wanna hear something like
"his frame broke in heavy traffic and ...". So there are
to ways. 1: built the frame geometries that they meet the
load conditions better (long lever = high profile) 2. get
better knowledge of welding and clean the parts better
before welding (no chrom, no paint). Sorry for theharangue
but some of that what I saw scares me.
Here 2 ideas from me to your suspension project. Maybe
they are better (maybe not)
regards,
Steffen
------------------------------------------------------------------------
*From:* Patrick van Gompel <patrick_van_gompel@xxxxxxxxxxx>
*To:* python@xxxxxxxxxxxxx
*Sent:* Wednesday, November 23, 2011 5:24 AM
*Subject:* [python] Re: Front suspension update
Hey Vi,
Front wheel suspension: wow, nice build.
Except for the 'front part - pivot' attachment the
'suspension fork to frame tube' seems a little weak too.
Why not weld two extra tubes left and right of the front
wheel to make a triangle (as in the attached picture).
Just an idea to make your ride safer...
Happy cycling,
Patrick
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