> > 12 mph is a running speed, not a cycling speed. If I could only do 12
> > mph on my bike, I'd ride on the sidewalk too.
> Very few runners can do 12 mph, that's a 5 minute mile.
> 12 mph is faster than the pace of a casual cyclist. Segway's,
> Olympic Class runners, and bicycles do not belong on
12 mph is fast as a sustained speed, but even a Segway is not likely to
run at its maximum speed except on a fairly empty sidewalk. No Segway
will be doing 5-minute miles, sidewalk or no.
In practice, a Segway will probably roll at about 5-7 mph on sidewalks
with any pedestrians nearby, assuming non-psychotic operators.
As for this 12 mph thing, I do a 10 km ride in 30 minutes on a good day,
35 on a bad day, including such obstacles as numerous traffic lights,
one or two km of significant grade, and one or two panniers full of
whatever useless ***I am foolishly pack-ratting that day. That's an
_average_ of 20 km/h on a steel touring bike old enough to vote and with
a tailrack carrying a blue lunch pail, pushed by a cyclist with eight
months of commuting and no rides over 30 km recently, if ever.
I go for it, but I'm not that fast. If my top speed was 12 mph (19
km/h), I would probably still be on the sidewalks, and probably not
riding to work.
OTOH, I don't negotiate tight situations top speed, and neither do
Olympic runners, and neither do car drivers, and Segway operators are
likely to continue this trend. I think their riders (disregarding the
basically abusive ones) will treat a Segway as a pair of swift, tireless
legs: no more, no less.