Amazon.com : PP Pedal Plate | SPDX | Adapter Compatible with Shimano SPD and Look X-Track Clipless MTB Pedals | Converts Clipless into Flat Pedals | No Cleats Needed | Adding Grip
ERGO3 for SPD-SL, Look, Garmin and Time – Mid-Foot Cycling
Road Bike Plates Cleat-Stabilizing Adapter For-Shimano SPD H51/SH56 Non-Slip | eBay
Ciclista-America.com: SPD Adaptor Plates Genius/Original Millennium
Sunlite 3-Bolt Road Shoe to SPD Pedal Cleats SPD Cleat adapters only
Bontrager Road Shoe SPD Pedal Adapter | Trek Bikes
Amazon.com : CyclingDeal Bicycle Shoes Cleats Adapters - for MTB Shoes to Use with Cleats of Road Bike Pedals - Compatible with Shimano SPD-SL, Look KEO & Look Delta - Converting Adapters