Diadora Power Drive SA 210 pedals

Diadora Power Drive pedals and cleats, introduced in 1992.
Cleats are "static", meaning fixed, without float.
The other type is "dynamic".
Failed more or less, because these pedals/cleats could only be combined with proprietary Diadora Power Drive shoes. Next to that, Johan Museeuw struggled with this combination through the 1994 edition of Paris - Roubaix, where he lost the race to a stronger and more clever Andrei Tchmil. Besides that, he had problems with his full suspension Bianchi bike and Diadora cleats jammed in his pedals.