Make the stationary vehicle model of your choice fit for Car System. Chassis kit to motorize stationary models of N buses and N trucks for Car System operation. Set contains all vehicle components required for the assembly of a fully functioning two- or three-axle Car System N gauge chassis (bus and truck), except the rechargeable batteries: Motor with worm, Motor holder with worm wheel and driving axle, Driving wheels, Front axle with wheels, Steering rod with magnet, Front axle holder, Switch, Charging socket, Dry-reed sensor, Resistors to adjust the charging current. Conversion info: - Fastening of motor in gear unit at choice horizontal (e.g. in buses and trucks with dropped frame) or vertical (e.g. in semitrailer trucks) - Axle bases (horizontal motor) can be selected continuously between 25 mm and 43 mm - Axle bases (vertical motor) can be selected continuously between 20 mm and 40 mm - Width: approx. 16 mm