Yeah, that recessed allen key nut, you want the drill the diameter the thinner bit of that, so that'll fit and the lip will grip the back of the fork / bridge over the stays.
Best to just incrementally enlarge the drill bit until it's good, otherwise you could be in trouble as dicki said.
Yeah, that recessed allen key nut, you want the drill the diameter the thinner bit of that, so that'll fit and the lip will grip the back of the fork / bridge over the stays.
Best to just incrementally enlarge the drill bit until it's good, otherwise you could be in trouble as dicki said.