Originally Posted by
Bacciagalupe
You can pretty much use whatever you like.
I happen to prefer the type that is clipless on one side and platform on the other. It makes it a little easier to run errands or go out to dinner wearing normal shoes after the day's ride.
Although I use Egg Beaters from Crank Bros. (the Candy model with small platforms) and like them, I think the above suggestion is the way to go. I'm familiar with the Shimano pedals that have real platforms on one side but there may be others. Even if you only wear clipless shoes on a tour, you probably will use your bike at home and at some time it might be handy to just go off in a pair of gym shoes.