Thats looks to be the carrier for a Miche cog. You will need to borrow a Miche splined cog and a 1/8 chainwhip to remove or submit to Miche as your cog overlord and just buy one.
@dubtap started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Thats looks to be the carrier for a Miche cog. You will need to borrow a Miche splined cog and a 1/8 chainwhip to remove or submit to Miche as your cog overlord and just buy one.