You could try a small piece of old inner tube between the skewer & cup. Then tighten it up, rock the bike side to side, then re-tighten.
@BareNecessities 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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You could try a small piece of old inner tube between the skewer & cup. Then tighten it up, rock the bike side to side, then re-tighten.