SPPL4 for SpeedPlay and Wahoo Pedals – Mid-Foot Cycling
Cycling Shoe Cleats,1 Pair Quick Release Cycling Shoes Cleat Cover Adapter Converter for Speedplay Zero (B (6 Degrees)) - Amazon.com
Amazon.com : EASTERN POWER Clipless Platform Pedal Adapters for Shimano Wellgo SPD Speedplay Pedals, Road Bike Dual Cleat Adapters, Black : Sports & Outdoors
Secrets of Speedplay - Slowtwitch.com
Wahoo Speedplay Cleat Extender Plate - R20 - Form Bike Fitting