A bit of effort required: Get a left threaded drill bit and a pillar drill, line up and drill. It should come out. Failing that then get a broken bolt/screw extractor bit to remove it.
@coventry_eagle started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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A bit of effort required: Get a left threaded drill bit and a pillar drill, line up and drill. It should come out. Failing that then get a broken bolt/screw extractor bit to remove it.