Originally Posted by
IamHis369
I would assume all indoor spin bikes would have the same pedals. That would make no sense if you couldn't use your shoes for different classes.
That would be a wrong assumption, you have to know what pedals the bikes have in order to install compatible cleats. SPD is a Shimano standard. Other pedal manufacturers who made pedals were not obliged to adhere to Shimano standards. While there is some degree of inter compatibility, this is not always the case. Do not imagine that SPD is as generic as Kleenex, they are different things