Titanium Boone Titanium Cog Earrings Anodizing (Refer to Final Image):85V (Electric Blue) as this could replace those

as this could replace those stacks with 2 slick pieces

Made from brushed titanium

use this method to determine spacer widths:

lifting the crank off the spindle

Our lockring needs an extra 3

Titanium Boone Titanium Cog Earrings Anodizing (Refer to Final Image):85V (Electric Blue) as this could replace thoseThese are the original cog earrings from 20 years back crafted from aerospace grade titanium. These are the patented cogs that started the company. They are so lightweight that they don't even register on all but the most sensitive scales. Hypoallergenic and very cool. They are about the size of a US dime. We offer the option to anodize them colors.