BLUF: Could switching from 2 bolt SPD pedals to 3 bolt SPD SL or Look pedals alleviate outer right foot pain/imbalance due to the cleat or wider platform.
BACKGROUND:
- Since I started seriously cycling 3 years ago I have been struggling with pain on the outer side of my right foot. This is present in both MTB and Road cycling.
- I am using Favero Assioma Pro MX-2 Power Meter Pedals. My power pedals regularly report a Platform Center Offset on the right pedal around +15 mm average, sometime as high as +20mm which strongly correlates with pain buildup on the outside of the right foot. My left foot does not have the same pain and the Platform center offset generally averages 0mm to +5mm platform center offset. The pedals have generally reported about a 15 - 20 watt difference in power balance between my left and right side (the lesser being on the right) and I greatly feel the asymmetry in my pedal stroke.
- I have preferred to use SPD pedals on both my MTB and Road bike due to being able to have just one power meter for both, the dual sided nature of SPD, and the walkability of the SPD system.
- I had a bike fit 2 weeks ago and the fitter staggered the for/aft position of the cleats (right cleat as far back as it will go, left cleat 13 mm forward of most rear position). He did this because his observation is that I am presenting a shorter right leg. (The physical therapist I am seeing, see below, measured and did not find a structure leg length discrepancy but noted a collapsed arch) This has seemed to help bring left/right power balance closer (around 4% difference according to power pedals which feels pretty good). He also rotated the right cleat to allow that foot to sit slightly toe out which is how that right foot wants to naturally sit. Prior to the bike fit and cleat adjustment there were times when the pain build up near the pinkie toe and 4th and 5th metatarsal of the right foot got so bad that I had to end a training session. Since the cleat adjustment this has somewhat improved although I can still feel pressure building up during long intense efforts its just now in the right outer midfoot instead of the forefoot. (makes sense since the cleat was moved far aft). Platform center offset is unchanged. The fitter also lowered the saddle height.
- For 2 years I was wearing a Shimano XC-502 (composite sole) shoes in size 43 normal width. I recently bought Lake MX239 Gravel (full carbon sole) in size 42.5 (correct size as assessed by the bike fitter) in normal width.
- I am using G8 insoles which were also setup by the bike fitter during his foot analysis
- I have a history of serious ankle sprains on my right ankle that has affected it’s stability. I am undergoing physical therapy to treat the ankle instability and collapsed arch which contribute to the foot wanting to roll to the outside.
I’ve never used traditional 3 bolt road cleats/shoes so what I am wondering is if the larger platform of a SPD-SL or Look pedal could help stabilize the right foot at all in conjunction with these these other corrections? Thanks for the advice.