mister W thank you! Success. I could remember the bit about putting the bit with holes behind the initial insert but it really was the cleat itself that flummoxed me. The shoes seem to have nothing on the sole to start with so that they are compatible with anything and you just buy the insert you want. Beyond me. Anyway, I've been in to the gym, sneaked into spinning studio and checked they do work. Admittedly I have to clip the shoes onto the pedals then get on the bike and put my feet into the shoes but hey, I'll just need to get there early!