Years ago when I rode bikes quite a bit, I rode only road bikes with drop bars. Those were the only game in town back then for serious riders. Right around the time when I got away from bikes, mountain bikes started coming in. (I'm dating myself here.)

Anyways, rode a bunch of folding bikes recently from 16" wheels (Brompton) to full sized folding bikes. In short, all the small wheels including a couple sof 20" grands felt just a bit off and cramped. Perhaps it was shorter cranks. Perhaps the small wheels. Not sure why.

With 16" and 20" wheel bikes, is it OK to put drop bars on them? One will be perched more over the front wheels. Or will that just change the handling too much and be unsafe?

I realize of course that drop bars will make the bike much less compact when folded up. I am thinking of using quick release clamps for times when I need to really fold to small package.

Thanks,
UL