Based on past experience, it could be the bottom bracket making that noise. See if you can swap it with a different one.
@okwithmydecay 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.
Based on past experience, it could be the bottom bracket making that noise. See if you can swap it with a different one.