A kick scooter includes a deck including a through hole in a hole, a flexible protruding member formed on the through hole, and a head tube having a through aperture; a steering tube including an aperture; a lock assembly including a projection having two parallel grooves, and a push button; a spring biased detent for fastening the steering tube and the deck together; and a steering control including a connecting member having a cavity; two pivotal members each having an end secured to a front wheel, and a bearing in a through hole; two cylinders each in either end of the connecting member and another through hole; and a biasing member biased between the cylinders. The steering control is unlocked with the protruding member in one groove and the pivotal members configured to pivot about the bearings. A pressing of the push button locks the connecting member.