Free to Fixed: What is a Flip-Flop Hub and Why do you want one? - YouTube
6KU 700C Alloy Deep V Wheelset Fixed Gear Single-Speed Fixie Flip Flop Track Bike Wheels - Walmart.com
Standard 700C Single Speed Wheelset | Bicycle Components | Wabi Cycles
Track Fixie Bike Wheel Flip-flop Rim Hight 70mm Front Rear 32h Hub Single Speed Bicycle Wheelset Fixed Gear Aluminum Alloy - Bicycle Wheel - AliExpress
Track Fixie Bike Wheel Flip-flop Rim Hight 70mm Front Rear 32h Hub Single Speed Bicycle Wheelset Aluminum Alloy With 700c Tires - Bicycle Wheel - AliExpress
Amazon.com : Retrospec Harper Plus Single Speed Wheelset - Lightweight 700 x 32c Commuter Tires - Stainless Steel Spokes & Rear Flip-Flop Hubs - Fixie Wheel Set with Double Wall Rims -
I want to swap my bike from fixed-gear to single-speed, but I don't think my rear wheel has a flip-flop hub. What do I need to buy to achieve this? : r/bikewrench