In article <[email hidden]>,
Jim Higson said:Michael Warner said:Jim Higson said:The 520s have more rotational friction than expensive pedals (although
still a small amount as a proportion of the whole system), weigh about
160g more, and are probably slightly less aero. Neither of these things
bother me, and they seem to be very durable - how else would you say they
are worse?
Road pedals have a much wider contact area with the cleat, and hence feel
much more stable to push against, particularly when you're sprinting or
standing. I used to have SPD on my road bike, too, and while they work
ok, the difference is substantial.
Some people claim that, but I have not found it true in my experience.
My experience is that I spent a couple of years racing quite happily
(Cat 4) in SPDs, followed by a year racing quite happily with a set of
Look pedals. Before the introduction of the Quattro, there were
sponsored pro teams racing on Egg Beaters, which are pretty much the
smallest platform of all. They didn't seem to be cheating on their
sponsorship, either.
My suspicion is that the stiffness of the shoe matters a lot more with a
small cleat than it does with a big one, but if it's stiff enough, it's
stiff enough. Note that there are a lot of fairly flexy-soled
SPD-compatible shoes out there, most aimed at recreational riders
serious enough to want clipless, but casual enough to want near-perfect
walkability. I have walked in very stiff-soled SPDs, and it works, but
you wouldn't want to stroll around all day in them.
Quoted message said:Don't mountain bikers stand quite a lot too to get over technical and steep
sections? Looking at the low seats (a bit like a BMX) that seem to be the
MTB fashion these days, I'd say a lot of MTBers should stand more often
than I do.
MTBers stand lots, though the mountain bikers using clipless do not
overlap much with the mountain bikers using low seats. It's a
freeride/cross-country thing.
Quoted message said:Quoted message said:I've never accidentally pulled out of my road pedals, either, which did
happen a few times with SPDs, even with the tension at maximum.
Either they've changed the design since then, or you just pedal a lot harder
than I do. I tend to keep the tension pretty low.
Some people do, some people don't. It's also the difference between
racing and riding. I kept my tension pretty high when I raced in SPDs,
except for cyclocross and MTB, but even there I used more tension than I
use on my commuter.
Quoted message said:I can barely even clip in at max tension. Then again, I only weigh about
65kg so that might explain it.
There might be some merit in something like the Egg Beater design for
you: it relies on the mechanical design of the cleat to retain you in
the pedal, releasing only if you move your foot more than the release
angle (selectable at 15 or 20 degrees, depending on which side you put
each cleat).
For non-racers, I would not recommend non-walkable cleats. There's not
much benefit for a lot of annoyance.
--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"I don't want kids who are thinking about going into mathematics
to think that they have to take drugs to succeed." -Paul Erdos