How to figure out whether road shoes fit properly?



C

Claus Aßmann

Guest
This probably sounds a bit strange, but: how can you make sure
that a road cycling shoe fits properly without actually going
for a ride?

Here's the background: Unfortunately my current road cycling shoes
(Adidas) are broken (sole is coming off). They are about 8 years
old and use a combination of laces and (kevlar) straps. Now I'm
trying to buy new shoes but it turns out to be way more complicated
than I expected (it seems I was lucky when I bought the previous
pair). My usual shoe size is 39 or 40 but many local dealers (San
Francisco East Bay Area) have only larger sizes available. Recently
I decided to buy a pair of Diadora Veloce EV in size 41, they fit
fairly well while trying them on at the dealer but with maybe a bit
too much room for the toes. The only part I was not really comfortable
with is that I could move my heel a bit, but according to the sales
person (and most online guides that I found) this is normal. However,
during the first ride I noticed my foot "slips" a bit out of the
shoe when I pull hard (e.g., during acceleration) even though the
straps are tightened (which in turn causes a little bit of pain on
the instep). I added an additional insole which however didn't
prevent the feet from "slipping".

Summary: is there some way to figure out whether the shoe will hold
my foot properly? With ski boots it is fairly simple to test as
those shops have some ski binding mounted such that you can "lock
down" the boots and try to move your feet (esp. heel). However,
I can't do something similar for cycling shoes as dealers don't allow
to mount cleats for "testing" (which I can understand, especially for
those shoes with carbon soles).

PS: while trying various shoes I noticed that shoes with a buckle cause
a bit of pain on the instep of the feet compared to shoes that have
only straps even though I'm trying to apply the same amount of
tightening. Is this something inherent in the shoe design if a buckle
is used?

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