i see , amal type ones, i can make those, made a few already! for other people on a 30's racing car ,
not sure i have any tube the right dia laying about to make that style , the ones i made for the flatslides started out 2" dia 6082 , was left over from some military tent poles that i made a machine to tapper the ends down on, i would need to start with smaller tube.
in answer to other question, it handles fairly normal! considering its my first attempt at frame building i'm well pleased with it, it tips in easy and the monday session was able to push a bit more braking harder and holding the line with a bit more go ,even though i bent the gear linkage , the first outing was more touchy feely for head bearings and turning in without tucking etc , its been stable and even tightens the line with throttle .