3 bolt to 2 bolt SPD adapters. Convert your road cycling shoes to 2 bolt SPD - YouTube
SHIMANO SPD CLEAT ADAPTER SM-SH41 FITS 3-5 HOLES TYPE SPD-SL SHOES | eBay
Shimano SPD Plate Adaptor Without cleats with long cleats screws | Bikester.co.uk
Shimano SM-SH41 Cleat Adapters For SPD-SL Includes Cleat Bolts – woolyswheels.com.au
Shimano SM-SH40M SPD Pedal Cleats Adapter | BIKE24
HOW TO USE SM-SH41 CLEAT ADAPTERS | RIDE SHIMANO – Ride Shimano
Bontrager Road Shoe SPD Pedal Adapter | Trek Bikes (INE)
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