I bought a new touring bike around 6 weeks ago and got the shop to do the whole fitting shindig,
including cleat alignment. I haven't had any major problems so I guess things must be pretty good.
My question is about the cleat positioning. If I recall correctly the procedure used to mount the
cleats was as follows: I placed my bare feet on a plexiglas platform with a rectangular cut-out,
with my heels against an adjustable backplate. The plate was adjusted such that the balls of my feet
were exactly aligned with the bottom edge of the cut-out. I put on the shoes and placed my feet once
more on the platform, and a mark was scribed on the bottom of the shoe. (Using the bottom of the
cut-out as a straightedge)
The cleats were later mounted such that the bolts were centred at this mark.
As far as I can tell no rotational adjustment was made at any stage, and the cleats are simply
pointing dead ahead. Fortunately this seems to be just fine with my feet. (I can't actually see how
such adjustment would even be possible -- I'm using Shimano MO37 shoes and the black cleats that
came with the PD-M515 pedals)
My question is thus, and I'm not really sure why it took this long for me to realise this: If the
backplate was adjusted to have the ball of my (bare) foot at the edge of the cut-out, then with the
shoes on and up against the backplate in the same position, the balls of my feet would be forward of
the edge of the cut-out they were previously aligned with. (because the backplate was adjusted with
my heel directly against the backplate, whereas now there is the back of the shoe between my heel
and the backplate)
I therefore draw the conclusion that the cleats are positioned behind the ball of my foot.
I've been thinking more about this since I got a bit of a sore knee about a week ago, though I'm
pretty confident that it was just the result of going too hard for too long -- I had a 40mi route
planned and set out going quite hard... by the time I had demonstrated exceptional navigational
skills by getting on the B4009 in the wrong direction and pounding away for about 10 or 15 miles
before noticing, the ride became a 65 miler instead. The sore knee went away within a couple of days
and only traces of soreness were apparent after 55miles on Sunday. Apart from that I have had no
problems with my knees (or anything else!) and I've done about 500mi on the bike.
In yesterday's ride I felt like the right cleat was so far back that I thought it might have
actually loosened and slid back to the furthest position. I stopped and inspected the shoe to see
that the cleat was still aligned with the mark, but on closer inspection just now I see that the
right cleat is about 1mm behind the left!
I can't adjust them easily because there is a waterproofing sticker on the inside of the shoe which
is holding the plate in position, so I will have to sacrifice my waterproofing if/when I start
playing with the cleat positioning.
Thanks in advance, asqui.