I had that issue in the past - never had it with a KNOG 9 though - might be worth a try?
@Mikey5000 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.
I had that issue in the past - never had it with a KNOG 9 though - might be worth a try?