I rode a century on these a couple of weekends ago:

https://www.jensonusa.com/Shimano-PD...kaAil1EALw_wcB

They're nearly as light as a set of Ultegra SPD-SL pedals but they let me wear my MTB shoes which I can walk in MUCH easier than a set of Road shoes... And unlike double sided Mountain Bike SPD pedals these have a little extra surface like the Ultegra SPD-SL pedals so they're more comfortable for longer rides.

Just check the tension before going for the first ride. Out of the box the left one was so tight I couldn't get a cleat into it until I backed it out a bunch of turns...