@Dan Smith it is interesting that my symmetry on my bike is around 54% to 55% left and 45% to 46% right with the 6mm shim but when I did my bike fit it showed up as 50% / 50% for the testing intervals What is a sensible limit for a shim ie. How much more than 6mm before trying different crank lengths?

@Dan Smith rather than increasing the shim any further (may reduce it by 1mm) I am trying a heel raise of around 3mm to 4mm on the short leg as I have read that this will help reduce platarflexion on my short ankle which can help, along with the (6mm), reduce the top foot pain. 🤞

I would prefer live sessions

Thanks for creating this category Dan After many years road cycling with a 4mm shim I started with top of foot pain after trying a new pair of cycling shoes (Lake CX 238 - old shoes Shimano R320). I have a (sports podiatrist) confirmed tibia length difference of around 15mm. I increased to a 6mm shim (back on my old shoes) and the pain has subsided somewhat but is still there (old & new shoes). I have done a Shimano Dynamics bike fit and the recommendation is to move to 170mm cranks (from 172,5 - I used to use 175mm), use a wider saddle (155mm from 142mm) and move my saddle forward. The other things I probably could consider are to increase the shim to say 8mm and / or a pedal adapter to widen my stance (Q-factor?) on my short leg. Any feedback or suggestions would be greatly welcome