A drivetrain system includes a first drive gear driven by a first motor and a second drive gear driven by a second motor. The first drive gear and the second drive gear are arranged along the axis. The first drive gear includes a first extension and the second drive gear includes a second extension arranged radially within and axially overlapping the first extension. The drivetrain system includes a system of bearings arranged between the first drive gear and the second drive gear, either drive gear and a stationary component, or a combination thereof. In some embodiments, the drivetrain system includes a clutch assembly arranged between the first drive gear and the second drive gear that interfaces to the first drive gear and to the second drive gear. The clutch assembly allows the drive gears to be locked or otherwise engaged to improve torque transfer.

A vehicle pedal device includes a hollow pedal and a pin. The pin extends through a first hole and a second hole formed in the hollow pedal. The first hole is formed to have an inner diameter that corresponds to an outer diameter of the pin. The second hole includes an inner surface that includes a contact surface. The contact surface is configured to receive a reaction force from the pin when a user depresses the hollow pedal, thereby aligning a location of a rear end of the pin with a location of a rear end of an inner peripheral surface of the first hole in a front-rear direction of a vehicle. The second hole defines a space inside, the space being located frontward in the front-rear direction of the vehicle from the pin extending through the second hole.

A snowmobile throttle control system comprises a throttle block with a throttle thumb lever pivotally connected thereto, the throttle block clamped to a snowmobile handlebar next to a right hand grip. The hand grip and/or thumb lever having electric heaters. The configuration of the throttle block and thumb lever reducing issues associated with snow and or ice buildup between the two during operation of the throttle control system by vertically and horizontally spacing respective confronting portions of each, effecting shear forces on any such ice or snow between the two, and by minimizing heat transfer between the handlebar and throttle block by reducing the contact between clamping surfaces of the throttle block engaging the handlebar thereby minimizing melting and freezing of the snow and ice at the throttle control system. The thumb lever and throttle block providing integrated securement structure for wires associated with the electric heaters.