Cyclocross and Gravelbiking (Recreational)This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like : "Unbound Gravel". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.
I have Shimano SPD A-530 - clipless/platform - on both bikes
My wife has those and they are great if you ride mostly with flats but want the option for clips on longer, harder rides. Probably one of the better all around pedals for switching back and forth.