It's a two-cog freewheel for Quickbeams and other single-speed bikes. Machined, precise, smooth, sealed, quiet, perfect, and pretty. After seeing how much it costs, you might think it wins the prize for the most dollars per cog of any freewheel ever made, but you'd be wrong there; White Industries also makes a single-speed freewheel that's a little cheaper. If you ride your derailleur-less bike a lot and in hilly places, it's a good toy. Changing gears with hands is a cinch.

Available in 16x18, 16x19, and 17x19.