Latest efforts.
Bull bars with Dahon andres stem mock up. Picture two shows fold just as compact,............ potentially.
Photo shows old drop bars turned upside down, intend to cut down in to bull bars and add road racing levers (plus longer cables). like mezzo pictured Leaving striaght bars on so bike is still usable for moment.
I am considering just going for a 45 cm wide TT bar without the Dahon stem. But this might be too low
For the moment I am trying these bars 43cm width , 25.4 stem over around 11 cm clamping area. Around 9cm is need for clamp area

Issues
1) If I can find a wider bar , around 2cm minium bigger 45 it will clear either side of the wheel. I might not need the andros stem then ,but might be too low. Change stem to longer as Fietsbob suggest ?? (I dont like paying out proper prices like £120 for new stem!! Mind you the dahon stem was around £55)
2) not sure about brake levers clearence, need to get some to try it.
3) this is a five speed bike could I use Brifters ?? else nount on bar ends ??
Just realise I posted this on the wrong thread !!!!!!!!!!!
Oh well..............