Combike / Folding bike

Problem/
The present invention of the folding bicycle requires the lifting and stooping motions when it is folded and this is an unfriendly design to elderly.

Design idea/consideration
Meet the need of the people on one-day-tour by the function of the fast fold which is designed in the way fold up the bicycle by rotating stem without lifting motion. Thus, it makes people more convenient when transferring in public transport, and also makes partially physically challenged people easier to fold up the bikes.