[python] Sv: Re: gyro forces

Watch "Jack Castor's Epic Downhill Crash!!"

http://www.bikeroute.com/jacksCrashclip.avi

Personally I ride a unicycle with a 36 inch wheel and can confirm that 
it is nice sitting on a high wheel now and then.


olaf




----Ursprungligt meddelande----
Från: darylbender@xxxxxxxxxxx
Datum: Oct 19, 2005 2:47:25 PM
Till: python@xxxxxxxxxxxxx
Ärende: [python] Re: gyro forces

I'm planning to do a web page with this (penny-farthing) visual theme 
and 
recently read somewhere that some riders heading down a long hill and 
gaining speed would abandon the pedals and put their legs over the 
handlebars in anticipation of a potential crash as it would leave them 
free 
to jump unimpeded forward. Man those guys were NUTS! ;-D

Daryl

>From: "25hz" <25hz@xxxxxxxxxx>
>Reply-To: python@xxxxxxxxxxxxx
>To: <python@xxxxxxxxxxxxx>
>Subject: [python] Re: gyro forces
>Date: Sun, 16 Oct 2005 21:41:38 -0400
>
>I have ridden two different ones, prior to me starting to actually 
build
>bents, but I can offer the following:
>- they weren't as hard to get on as most think, actually getting off
>required more effort than on.  Step on the foot peg just above the 
rear
>wheel, push off like a scooter while standing off to the side a 
little like
>a horse, then slide onto the seat, put your feet on the pedals, and 
you're
>rolling.  Sounds tougher than it was.
>- steering was fine, in fact, I remember being surprised that it felt 
like 
>a
>normal bike to ride.
>- I don't remember any handling problems
>- biggest problem was the fear of slamming your face into the ground 
>because
>you are so high up and so far forward on the wheel.
>- steep hills would be a problem, even leaning way back to move your 
CoG,
>but I didn't ride down a steep hill.
>- braking needs to be planned.  One bike had a brake bar on the tire 
(plus
>you could use back pressure), and the other one braked by back 
pressure on
>the pedals (like a unicycle).  I leaned back on both while braking, 
just to
>be safe :)  I imagine emergency stops could hurt . . . a LOT.
>- From the geometry of the few I'd seen, I would say they likely had 
>between
>2 and 5 cm of trail.
>- the longer your legs are, the bigger a front wheel you can use, and 
the
>faster you can go :)
>
> > How about the old high-wheelers (penny-farthings).
> >
> > They are not recumbents, but they are FWD and FW-steered
> > bikes with huge wheels. Gyro force downhills must be quite
> > big.
> >
> > Any problems known?
> >
> > Jürgen.
> >
>
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