Old Ritchey Clipless MTB pedals. Have no clue about them. Any way to give them a service and test them if they work? I don't have MTB shoes but I'm thinking of
Ritchey Logic Pro MTB SPD Pedal in Black OEM Shop Soiled
Ritchey MTB SPD pedals, black, good condition | eBay
Ritchey MTB, Cross & Road Bikes to Bike Accessories