To fit the notched cups as above.
The notches are half circles as opposed to the more standard square notches.
The tool may look a little like this.
@dmczone 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.
To fit the notched cups as above.
The notches are half circles as opposed to the more standard square notches.
The tool may look a little like this.