So I had a pair of Shimano road pedals given to me. PD-A515 is stamped on the cleat part of the pedal. I'm trying to find cleats for these pedals. I was under the assumption all spd cleats were compatible but I'm not really sure. Any help on what cleats I need is appreciated. I've always used eggbeaters (even on my road bikes) but thought I'd give these a try. Thanks