When to replace a sprocket on an ATV?

If you’re replacing your sprocket due to wear, I would suggest also replacing the chain. It’s best for the chain and sprocket to wear together. If your sprocket looks like this image, replace it. You will notice the teeth on the sprocket wearing out and becoming sharper or scared.

What happens when you gear down on an ATV?

Gear Down You can gear down by installing a larger rear sprocket (with more teeth) or a smaller front sprocket (less teeth). Gearing down will actually increase your gear ratio number. Gearing down will increases acceleration but will decrease top speed.

How can I increase my gear ratio on my ATV?

You can gear up by installing a smaller rear sprocket (less teeth) or a larger front sprocket (more teeth). Gearing up will decrease your gear ratio number. This will increase your top speed, but decrease your acceleration. Tire size plays a big role in your gearing.

How many teeth are on a front sprocket?

One tooth on the front sprocket is equal to about three teeth on the rear sprocket give or take. It’s a lot easier to make small gearing changes if you only swap out the rear sprocket. Besides, if you use a smaller than stock front sprocket, you will be causing extra wear and tear on the chain.

How does power transmission work with two sprockets?

The chain meshes with the sprockets, transmitting rotary motion between the two. Power transmission can occur in reverse, that is, from driven to driver sprocket, due to external loads. This condition is known as back-driving. The drive chain is compliant.

What is the slack distance between two sprockets?

This distance equals the length difference between actual and fully taut drive chains. If one sprocket is held in place while the top chain branch is taut, then the slack length is the tangential distance that the second sprocket must rotate before the lower chain branch becomes taut.