There are 3 different sprocket sizes options to choose from on the lower drive shaft hub on the XFR snowbike kit. With this you can achieve any drive ratio. All sprockets are made of heat-treated machined steel and will last a very long time. For more info about snowbike gearing, see the Gear Chart.
Note: Something to think about when changing gearing. Choose a sprocket that best compliments the chain length and the adjustment that you have to work with. It is recommended to take a look at this before choosing whether to change the drive shaft sprocket or jackshaft sprocket.