Originally Posted by
CraigB
I still have no idea. The object in the pic is something I've never seen before. The actual threaded inserts that the bolts engage have been an integrated part of the sole of every shoe I've purchased in the last 20 years.
Some shoes have the threaded inserts integrated into the sole. I didn't see this on most of Shimano's MTB shoe offerings. I think they had them integrated on the road shoes with the dual Look/SPD cleat arrangement. But basically I think there is a mix of shoes with and without integrated holes. The M087G I ordered is supposed to use cleat nuts.