Folding

Folding bikes and trikes have a hinge that allows the cycle to be doubled over on itself.

The folding capability allows the cycle to take less space and therefore makes it intrinsically more transportable by other means.

By definition, the act of folding is an added step and folding cycles are more difficult to manufacture than non-folding cycles. Foldability usually adds weight as the frame must have an otherwise unneeded hinge and parts of it must be strengthened with more material.

Folding recumbent trikes usually allow the seat to be removed or to have the seatback hinged forward over the seatpan.