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 XC Comp V5 Pedals, Black | Bikeinn
Ritchey Comp XC / MTB Pedals
Ritchey WCS XC Mtn Clipless Pedals, Black — Send It Bikes
First Look: Ritchey WCS XC Clipless Pedal: Wider & Lower