RE: Non-Coker big yikes
> I wonder how fast a 50" uni can travel. Or travel safely.
For safely, it’s probably about the same as a Coker, with a little lower
pedaling speed. Once you get over a certain wheel size, the speed advantage
starts dropping off. Of course once your wheel size gets beyond your leg
length, you start loosing efficiency if you get into the extra weight of
blocks, pedal extensions, some kind of chain drive, and the bigger wheel and
tire itself. As the wheel gets bigger, the fall gets higher, and the
potential to taco increases as well.
My 45" wheel has worked well for me because it fits into my car (except my
old bug). It just stands up in there. Any bigger, and it would have to be
laid flat or on an angle, taking up a lot more space.
There is some speed advantage to the skinny, hard tire. The rim/tire part is
more aero, and obviously there would be less ground friction. But the wider
hub brings the wind resistance back up.
> Could it outride a Coker?
I’m sure that’s mostly a question of engine, not machine. A bigger wheel
with hard tire would surely have an edge in a long race, but the Coker would
have the clear edge on comfort!
> de-clined surface, I wouldn’t be surprised to see one pass a
> fast Coker rider.
I’ll see what I can do with mine in the marathon race at UNICON. But it’ll
again be a case of rider power more than equipment power. [begin boast]
Remember, the marathon race in Toronto last year was the first time I’ve
ridden a Coker for more than a minute or so. [end boast]
> Maybe one of our German-speaking friends
> can ask what their top and average speeds are.
This is highly dependent on the riders again. I have that big mental red
line at running speed, and am generally reluctant to go too close to, or
beyond it. Under 20 mph is fast enough for me, though I’ve been clocked a
little faster, and I’m sure I could go into the high 20s if I were nuts
I have also ridden 48", 50", 56", and 63.5" wheels. I think the same speed
rules would apply, and I’d want incrementally longer cranks as the wheels
got bigger. Problem is, the biggest wheels tend to have short cranks,
because they get built to the physical limits of their owners. Ken Fuchs’
56" wheel had 5.5" cranks on it, and Ken could still barely reach…
Stay on top,
John Foss, the Uni-Cyclone
Howard Stern: “How many wheels does a unicycle have?”
The beautiful but vacant, recently-crowned Miss Howard Stern: “Four?”