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I have used the online gearing commander to calculate relative speeds through the gears with 20, 21 and 22t gearbox sprockets. Since they had no input for the Avon RR II 400-18 tire I am running on the back, I interpolated the circumference for a 26.4 diameter rear tire.
1st, a 20t gearbox sprocket.
Next, my current gearing with the 21t gearbox sprocket
Last the 22t gearbox sprocket I plan to run after the engine build.
1st, a 20t gearbox sprocket.
![Commando Gearing Options Commando Gearing Options](https://i.imgur.com/V8gXDTz.png)
Next, my current gearing with the 21t gearbox sprocket
![Commando Gearing Options Commando Gearing Options](https://i.imgur.com/aMzpMXy.png)
Last the 22t gearbox sprocket I plan to run after the engine build.
![Commando Gearing Options Commando Gearing Options](https://i.imgur.com/80LRojw.png)
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