the other alternative is to drop the TT (but still keep it level) and slightly extend the head tube.
Very good point. Probably worth combining the two.
Its nice to have a spacer between stem and headset for adjustment with different stems/bars. But an extended headtube is a far stiffer arrangment, than a spacer tower. I've gone with a 15mm extention in the example above, which is 10mm more than I'd expect for a frame of that size.
Ultimately, I'd trust the designer/builder though. I would'nt take my plan above to anyone more expensive than XACD, as its designed by a pleb ;)
Very good point. Probably worth combining the two.
Its nice to have a spacer between stem and headset for adjustment with different stems/bars. But an extended headtube is a far stiffer arrangment, than a spacer tower. I've gone with a 15mm extention in the example above, which is 10mm more than I'd expect for a frame of that size.
Ultimately, I'd trust the designer/builder though. I would'nt take my plan above to anyone more expensive than XACD, as its designed by a pleb ;)