Post mount use M5 bolts, the flat mount frame to adapter ones are M4, just use whatever is the right length and size.
m6 and m5....
@snottyotter 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.
Post mount use M5 bolts, the flat mount frame to adapter ones are M4, just use whatever is the right length and size.