Amazon.com : Retrospec Harper Single Speed Fixie-Style Bike Urban Commuter Bicycle with Coaster Brake, Flip Flop Hub, 700x28C Tires and High Tensile Steel Frame for Commuting, Cruising - Navy 43cm, xs :
Fixie Frames: How to Buy a Frame for your Bike (4 Tips)
Amazon.com : TanHo Full Carbon Frame 700c Fixed Gear Bicycle Frame Carbon Fixie Fixed Gear Bike Frame Track Bicycle Frame (520), Red : Sports & Outdoors