Disclosed is a seat post assembly for a human powered vehicle, the seat post assembly including a upper tube and a lower tube where the upper tube is telescopically received in the lower tube, the seat post assembly further including a nut holder tube, a nut, a motor and a lead screw, the motor is attached to the top of the upper tube, the nut holder tube is provided inside the lower tube, the nut is attached in a top portion of the nut holder tube, the lead screw is provided inside the upper tube and the nut holder tube and is with one of its ends attached to an axle of the motor, the seat post assembly is configured to raising or lowering the upper tube relative to the lower tube by rotating the lead screw in forward or backward direction respectively.

Systems and methods for heating a handgrip of a vehicle. One system includes a first handgrip including a first heating element and a first temperature sensor and a second handgrip including a second heating element and a second temperature sensor. The system further includes a polarity switching circuit configured to provide power, when active in a first polarity, to the second temperature sensor and provide power, when in a second polarity, to the second heating element. The system includes an electronic processor configured to receive, when the polarity switching circuit is active in the first polarity, a temperature signal from the second temperature sensor, compare the temperature signal to a predetermined threshold, and set, in response to the temperature signal failing to exceed the predetermined temperature threshold, the polarity switching circuit to the second polarity.

Systems and methods for heating a handgrip of a vehicle. One system includes a first handgrip including a first heating element and a first temperature sensor and a second handgrip including a second heating element and a second temperature sensor. The system further includes a polarity switching circuit configured to provide power, when active in a first polarity, to the second temperature sensor and provide power, when in a second polarity, to the second heating element. The system includes an electronic processor configured to receive, when the polarity switching circuit is active in the first polarity, a temperature signal from the second temperature sensor, compare the temperature signal to a predetermined threshold, and set, in response to the temperature signal failing to exceed the predetermined temperature threshold, the polarity switching circuit to the second polarity.

A grip heater device includes a display unit provided at a grip and including a first light source and a second light source, and a controller including an electric power control section which controls an amount of electric power to be supplied to the heater in response to an operation of a temperature adjustment member, and a light source control section which controls the first light source and the second light source. The display unit is configured to perform: a first color display, a second color display, and a third color display. The light source control section causes the display unit to perform a temperature display with a blinking pattern corresponding to an amount of the electric power supplied to the heater, by use of the first color display, the second color display, or the third color display, in response to the operation of the temperature adjustment member.

A grip heater device includes a display unit provided at a grip and including a first light source and a second light source, and a controller including an electric power control section which controls an amount of electric power to be supplied to the heater in response to an operation of a temperature adjustment member, and a light source control section which controls the first light source and the second light source. The display unit is configured to perform: a first color display, a second color display, and a third color display. The light source control section causes the display unit to perform a temperature display with a blinking pattern corresponding to an amount of the electric power supplied to the heater, by use of the first color display, the second color display, or the third color display, in response to the operation of the temperature adjustment member.

To avoid causing significant damage to a temperature sensor or an unintentional shift of the temperature sensor, a hand grip disclosed herein includes: a cylindrical inner housing 110; a heating element 120 provided adjacent to an outer peripheral side of the inner housing 110; a temperature sensor 140 provided adjacent to the outer peripheral side of the inner housing 110; and a sheathing 130 covering the inner housing 110, the heating element 120, and the temperature sensor 140. A recess 111 is formed on an outer peripheral surface of the inner housing 110, and the temperature sensor 140 is fitted into the recess 111.

To avoid causing significant damage to a temperature sensor or an unintentional shift of the temperature sensor, a hand grip disclosed herein includes: a cylindrical inner housing 110; a heating element 120 provided adjacent to an outer peripheral side of the inner housing 110; a temperature sensor 140 provided adjacent to the outer peripheral side of the inner housing 110; and a sheathing 130 covering the inner housing 110, the heating element 120, and the temperature sensor 140. A recess 111 is formed on an outer peripheral surface of the inner housing 110, and the temperature sensor 140 is fitted into the recess 111.

A seat assembly for a vehicle having a longitudinal axis includes a seat pan, a cover support adjacent to the seat pan, and a seat cover that has an upper surface, a first longitudinally extending side surface and a second longitudinally extending side surface. A heating and cooling module is disposed at least partially within the cover support. The seat assembly further comprises a first air inlet in communication with the heating and cooling module. The first air inlet communicates air from a first port in the seat cover to the heating and cooling module.

A seat assembly for a vehicle having a longitudinal axis includes a seat pan, a cover support adjacent to the seat pan, and a seat cover that has an upper surface, a first longitudinally extending side surface and a second longitudinally extending side surface. A heating and cooling module is disposed at least partially within the cover support. The seat assembly further comprises a first air inlet in communication with the heating and cooling module. The first air inlet communicates air from a first port in the seat cover to the heating and cooling module.

A motorcycle air conditioning device, a motorcycle rider cooling device, and an air conditioning cooling system are described that include using a thermoelectric device and/or a turbo fan mountable on a motorcycle, all-terrain vehicle, or utility task vehicle. The motorcycle air conditioning device, the motorcycle rider cooling device, and the air conditioning cooling system may thus provide directed cooled air for a rider. In implementations, the motorcycle air conditioning device includes a heat dissipation assembly; a cooling assembly further including a a thermoelectric device; and a housing assembly configured to provide an enclosure to the heat dissipation assembly and the cooling assembly, where the housing is configured to be coupled to a motorcycle or other vehicle and provide cooled air to a rider and/or user.