Shoes supporting heel-mounted cleats I'm searching for a way to clip into pedals despite my very pronated foot. 



My right foot is 40-50 degrees turned out due to a torsioned shin. I pedal using my heels, which eliminates the differences in position and allows my pronated foot to turn out rather than bumping at the heel.

I'd like to modify a pair of shoes to mount SPD cleats at the heels, with the right one rotated. While midsole mounts has a small following, I've yet to find anyone mounting at the heel.

Any suggestions on a shoe likely to support this? As I look at shoes online, it's hard to tell if they have a flat heel to drill and a way to get the tee nuts on the other side, and whether they're likely to support the pull at the heel when pedaling.
With the help of a bike fitter and mechanic, we found a very good solution that has served me well. I've put in about 2000 km this year and am heading to my first imperial century tomorrow.

Mechanically, the solution involved:


Custom mounting SPD cleats quite far back on the soles. I'll add a picture later, but I'd say they're 3/4 of the way to the heel. For my torsioned leg, the cleat is mounted rotated by 35 degrees.
Carbon-soled road shoes with a flat surface to the back. We went with Bontrager Velocis. First attempt was with non-carbon soles, but the sole ended up tearing under pressure after a while. I've found the pressures do loosen up the cleats so I've had to have the mechanic tighten and glue them twice over the season.
Kneesavers pedal extenders - To avoid hitting my heel on the crank arm, we put in the longest pedal extender for my torsioned leg, and a shorter one on the other side for balance (to avoid feeling off centre on the seat).


From there, bike fitting was key. Everything is configured so knees, hips, etc. follow the usual parameters as much as possible.

So far, I'm feeling great, and don't really notice the loss of calf muscles in the pedal stroke. Some occasional knee soreness, but nothing beyond what I think most 40-year-old cyclists experience.

Very grateful to my local bike shop for taking lots of time to come up with this custom solution!