Draw round the braze-ons with a Chinagraph pencil, then when you file, as soon as you begin to remove the waxy pencil line...SHTOP...
Sounds like a good theory for not compromising the integrity of thin tubes, not sure I'd trust myself to try it out mind.
@Sammy_Dodger started
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Draw round the braze-ons with a Chinagraph pencil, then when you file, as soon as you begin to remove the waxy pencil line...SHTOP...
Sounds like a good theory for not compromising the integrity of thin tubes, not sure I'd trust myself to try it out mind.