[python] Re: Thanks Chris! Any everyone else.
- From: Tihamer Juhasz <balamber@xxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Wed, 3 Apr 2013 10:53:21 +0300
Hi Ivan,
A working adjustable pivot is technically very difficult to do in my
opinion. I tried to build a test bike with an adjustable pivot to test
different bike geometries but it tended to buckle all the time. I would
suggest that if you really need to change the bicycle geometry, instead of
an adjustable pivot add front and/or back suspensions with a pretty large
range of adjustment and use them to raise/lower the front and rear of the
bike. This way you change the pivot angle as well.
If anyone has a good idea/mechanism of an adjustable pivot with a +/- 15
degrees of range or even more please share it. Infinitely
adjustable/stepless adjustment preferred.
That's my two cents.
Tiha
On Wed, Apr 3, 2013 at 10:09 AM, Ivan van Hoof <zl3tiv@xxxxxxxxx> wrote:
> That sounds like one nice seat! Bending ply or snake ply, I will have to
> make my seat out that stuff. Any thoughts on the main pivot? I like the
> simple bottom crank design but I want a design that is simple looking,
> sleek and adjustable angle by a few degrees to account for other riders
> weights and lengths. Good to see the group is active, very quick replies
> from you guys is great!
> I have shown, told a few work mate and friends the web site and they are
> keen to see me finish my python and ride it.( and a few think am crazy.)
> How smooth is the ride of these bike with 700c or 26 inch wheel on the
> road( no off road) would I need suspension? I intend to only use the bike
> for touring on the road. I'm thinking no suspension to save weight.
> Thanks guys for your help.
>
> Ivan van Hoof
> ZL3TIV
>
> Sent from my
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