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  • I have a head tube badge that's for a slightly (not much) wider head tube than the bike i want to fix it to (it's glue not rivets so otherwise will be fine). Any ideas how i might re-shape the curve of the badge in an even and controlled manner to match the head tube ?

    (also because its glue not rivets the curve needs to match particularly well I imagine for the glue to take well)

  • Make a mandrel the same size as the new head tube, or maybe a smidge smaller to account for spring back. Tie the badge to the tube with string when you stick it down to apply even pressure for the duration of cure, as you wood for furniture repair
    .

  • Maybe find (or sand a dowel to size) something a tad smaller diameter, get a couple of hose clamps and slowly wind 'em up.

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