1/8"

Looking for 1/8″ cogs for a single speed bike or an internally geared hub? You’ve come to the right place.

1/2″ x 1/8″ cogs have teeth spaced to suit a 1/2″ x 1/8″ chain. And this 1/8″ is ‘wider’ than the pitch of a chain that is 1/2″ x 3/32″.

This wider pitch makes for a cog & chain which is strong & durable, but won’t work on a cassette!

For a cog which runs on a cassette you will need a 1/2″ x 3/32″ size. Which we also have of course.