A reverse gearbox is a mechanical component that is connected to the transmission (most commonly a torque converter) and rear axle of a go-kart. The input shaft of the reverse gearbox connects to the driven pulley of the torque converter, whereas the output shaft connects to the rear axle via a sprocket and a chain.
Reverse Gearbox Kit
- Compatible with 30 Series Torque Converter
- Forward Gear Ratio: 1:1.3
- Reverse Gear Ratio: 1:2.6
Once correctly installed, a reverse gearbox will allow you to not only drive your kart forward, but also backward. Take note that electric go-karts don’t require a reverse gearbox, as the reversing function is handled by a speed controller instead.
When to Consider installing a Reverse Gearbox on a Go-kart
Installing a reverse gearbox on your go-kart is not a requirement, but rather a matter of convenience and application. Racing go-karts typically don’t have a reverse gearbox, as these types of go-karts are designed to be as lightweight as possible.
When they are required to be moved backwards, they can be simply pushed in that direction. On the other hand, reverse gearboxes are more common on off-road and homemade go-karts.
A reverse gearbox will enable you to get out of sticky situations such as being stuck in certain terrain, wanting to back out of a narrow path and several other scenarios.
There are certainly several benefits to installing a gearbox on your go-kart.
How does a Reverse Gearbox Work on a Go-Kart?
The reverse gearbox has an input and an output shaft. The input shaft is connected either directly with the engine or to a clutch or a torque converter. The rotation of the engine crankshaft rotates the input shaft on the gear box (or the torque converter if a transmission is installed).
Gearbox Description:
- Gearbox Housing
- Output Shaft (with Sprocket)
- Input Shaft
Inside the gearbox are cog wheels that connect the input shaft with the output shaft. Engaging the reverse gear will enable the output shaft to rotate in the opposite direction, meaning that the rear axle will be spun counterclockwise.
This will enable the go-kart to move in a backward direction. In order to move forward again, the reverse gear would need to be disengaged.
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