Feather frames

Thanks! I don't think it's technically a bi-laminate on the seat sleeve - maybe that's what you'd call it, you'd have to ask Ricky.

Seems like a similar process to the headtube. But to honest I've no idea.

That was exactly the idea, to then match the style of the headtube and seat tube areas. The BB is fully fillet brazed.

At any rate, it certianly does this.