A self-balancing board is provided, comprising a primary wheel assembly, a platform, at least one sensor, a controller, a first auxiliary wheel assembly, and a first brake element. The primary wheel assembly comprises a primary wheel and a motor driving the primary wheel. The platform is secured to the primary wheel assembly and has a foot deck. The at least one sensor senses the orientation of the platform. The controller receives data from the at least one sensor and controls the motor in response to the received data. The first auxiliary wheel assembly is secured to the platform distal the primary wheel assembly, and is elevated from contacting a flat surface upon which the primary wheel rests when the foot deck is parallel to the flat surface. The first brake element is manually movable relative to the first auxiliary wheel assembly to engage the first auxiliary wheel assembly to provide resistance to rotation of the first auxiliary wheel assembly.

One variation of a system includes: a cam block mounted to a deck of a scooter and defining cam lobes arranged about a pivot feature and cam heels between the set of cam lobes; a pivot block pivotably coupled to the pivot feature and defining followers riding over the cam lobes; a pair of wheel uprights locating a pair of wheel assemblies; a first lateral link extending between and coupled to the pair of wheel uprights and pivotably coupled to the pivot block; a second lateral link extending between and coupled to the pair of wheel uprights, vertically offset from the first lateral link, and coupled to the pivot block between pair of wheel uprights; and a spring element driving the followers of the pivot block into cam heels to bias the second lateral link toward a neutral position.

In some embodiments, an electric scooter comprises a deck configured to support a rider, front and rear wheels, a handlebar assembly that includes a handlebar, a left handle, and a right handle, a steering column that includes a steering tube and the handlebar assembly, and an electric motor configured to provide mechanical power to at least one of the front and the rear wheels. One or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to be detachable and comprise one or more rechargeable battery packs. In addition, one or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to receive one or more removable rechargeable batteries.

In some embodiments, an electric scooter comprises a deck configured to support a rider, front and rear wheels, a handlebar assembly that includes a handlebar, a left handle, and a right handle, a steering column that includes a steering tube and the handlebar assembly, and an electric motor configured to provide mechanical power to at least one of the front and the rear wheels. One or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to be detachable and comprise one or more rechargeable battery packs. In addition, one or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to receive one or more removable rechargeable batteries.

A personal mobility vehicle, such as a scooter, includes at least one battery and motor for powering at least one driven wheel. The vehicle also includes a braking assembly configured to isolate the motor from the at least one driven wheel such that power is terminated from the motor to the at least one wheel in response to a user engaging a braking assembly of the vehicle. The vehicle can include a switch or position sensor that interacts with the braking assembly to initiate the isolation of the motor from the at least one driven wheel and the switch or position sensor preferably is inaccessible to the foot of the user.

A personal mobility vehicle, such as a scooter, includes at least one battery and motor for powering at least one driven wheel. The vehicle also includes a braking assembly configured to isolate the motor from the at least one driven wheel such that power is terminated from the motor to the at least one wheel in response to a user engaging a braking assembly of the vehicle. The vehicle can include a switch or position sensor that interacts with the braking assembly to initiate the isolation of the motor from the at least one driven wheel and the switch or position sensor preferably is inaccessible to the foot of the user.

A personal mobility vehicle or scooter includes a least one swivel caster wheel supported at the rear of the scooter. The scooter has a body that includes a deck and a handlebar assembly. The scooter includes at least one front wheel with the deck extending between the at least one front wheel and the at least one swivel wheel. The scooter can also include an angled rear portion supporting a rear swivel caster wheel such that the pivot axis of the swivel wheel is inclined with respect to the top surface of the deck. Embodiments of the scooter also include a swivel braking assembly configured to apply a braking force to the at least one swivel wheel.

A personal mobility vehicle or scooter includes a least one swivel caster wheel supported at the rear of the scooter. The scooter has a body that includes a deck and a handlebar assembly. The scooter includes at least one front wheel with the deck extending between the at least one front wheel and the at least one swivel wheel. The scooter can also include an angled rear portion supporting a rear swivel caster wheel such that the pivot axis of the swivel wheel is inclined with respect to the top surface of the deck. Embodiments of the scooter also include a swivel braking assembly configured to apply a braking force to the at least one swivel wheel.

In some embodiments, a scooter comprises a deck configured to support a rider, a front wheel and a rear wheel, a head tube, a steering column, and a foot brake. The steering column can include a steering tube and a handlebar assembly, and the steering column can be used to steer the scooter by controlling a direction of the front wheel. The foot brake can be configured to apply a braking force to the rear wheel when the foot brake is pressed down. A plurality of neck members can connect the deck to the head tube.

In some embodiments, a scooter comprises a deck configured to support a rider, a front wheel and a rear wheel, a head tube, a steering column, and a foot brake. The steering column can include a steering tube and a handlebar assembly, and the steering column can be used to steer the scooter by controlling a direction of the front wheel. The foot brake can be configured to apply a braking force to the rear wheel when the foot brake is pressed down. A plurality of neck members can connect the deck to the head tube.