Official Boone single speed cogs machined to order out of aerospace grade titanium here at our shop in Kennesaw, GA. 14 through 22, and 24 tooth variants are currently available. These cogs have a distinguished look with lightning patterns cut out to save on weight. They have a bead blast finish on the teeth, back, and the upper and lower spacers, but have a mirrored surface on the front flat surface around the spacer to contrast and highlight the lightning pattern. These will turn heads and are a must have for any single speed build.