Box Two Freewheel
Tested extensively by the Dutch National BMX Team, Damien Godet, Kory Cook, and numerous other elite racers, Box Two™ Freewheels combine durability with lightning-fast engagement. They feature nine, super durable pawls and are available in one of three choices -- 16, 17 or 18 teeth.
To install, use the Park Tools™ FR-6 or other installation tool designed for single speed freewheels with four notches that are approximately 32mm across measured inside to inside and 40mm outside to outside.
Best non rebuildable freewheel..no drag..years of use
Send chills down competitors spines
They'll hear ya but they won't out run you. Has been making wins first on my kids bike now on my nephew's bike. Hasn't missed a beat.