个人车辆包括自我推进及平衡的个人车辆。使用速卸机构来提供可迅速拆卸的座椅，脚踏板，椅背，控制单元，车轮，及脚轮总成。

Improvements to personal vehicles including self-propelled and balancing personal vehicles. Ready detachability of a seat, footrest, seat back, control unit, wheels and caster assembly is provided using quick disconnect mechanisms. A vehicle for carrying a payload including a user, the vehicle comprising: (a) a ground-contacting module that supports the payload, the ground-contacting module including at least one ground-contacting member; (b) a motorized drive arrangement, mounted to the ground-contacting module, the drive arrangement causing, when powered, automatically balanced operation of the vehicle in an operating position that is unstable with respect to tipping when the motorized drive arrangement is not powered; (c) a seat assembly for supporting the user, the seat assembly being rigidly coupled to the ground-contacting module at a single seat connection flange in such a manner that the seat assembly may be removed without the use of a tool; and (d) at least one caster coupled to the seat assembly, the vehicle being operable with each caster either engaging or not engaging the ground, each caster moving with respect to the seat assembly only in response to ground engagement.