SPD-SL Clipless Pedal Convert to Universal Platform Adapters Adapter Plate Cleats Convertor SPD for Shimano (for Shimano SPD) : Amazon.ca: Sports & Outdoors
Problem Solvers Deckster Clipless Pedal Adapter - TopoJoes | Globe, AZ
Amazon.com : Thinvik Clipless Pedal Adapter for Shimano SPD Pedal - Clip Pedal Convert to Universal Platform Pedal - (Only Work on MTB Bike Pedal : Sports & Outdoors
Crankwork can make your SPDs into flats with its adaptors