Tall bike build > without welding < ?
 

Can anyone shed some light on how one could go about doing this?

Essentially, using hardware store bits and other good ideas ...

hmm, I've seen how-tos, dunno where though. on the front put a hub in the stem and bolt the top frame's fork to it. in the back use bed rail or similar to bolt between dropouts. good luck!

http://www.instructables.com/id/Buil...thout-Welding/

but i'd suggest finding someone with a welder cuz that one doesn't look too strong