TBH folks I think the easiest would be to have the HT off completely and fit a new one. For starts the HT interface would look woeful with external cups not to mention the hassle of filling it with weld and then trying to machine both sides precisely for the fork to sit correct.. A properly made external cup HT would weld on beautifully and job done :) T
Falling back to this question the other day, you wouldn't happen to have the internal sizes for the headset bearings. My old ones are lose as fuck and dont know what the size they were meant to be.
TBH folks I think the easiest would be to have the HT off completely and fit a new one. For starts the HT interface would look woeful with external cups not to mention the hassle of filling it with weld and then trying to machine both sides precisely for the fork to sit correct.. A properly made external cup HT would weld on beautifully and job done :) T