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Electric Scooter Repair Help > Chain Length Calculator

 

Chain Length Calculator

 


Chain Length Calculator

Chain Size (Value in Brackets is Pitch)
Motor Sprocket Teeth
Wheel/Axle Sprocket Teeth
Center to Center Distance
 Inches
Chain Links
 (Inside and Outside Links)
Chain Length
 Inches
Reduction Ratio
 to 1

 

Sprocket Center to Center Calculator
Chain Size (Value in Brackets is Pitch)
Motor Sprocket Teeth
Copy to Calculator Above
Wheel/Axle Sprocket Teeth
Copy to Calculator Above
Links of Chain
 (Count Inside and Outside Links)
Center to Center Distance
 Inches
Copy to Calculator Above
Reduction Ratio
 to 1


Chain is Missing or Lost

If a chain is missing or lost use the Chain Length Calculator to determine what size chain is needed. Enter the number of Motor Sprocket Teeth and Wheel/Axle Sprocket Teeth along with the Center to Center Distance between the two sprockets and click the Calculate button. The number of chain links that are needed will be displayed in the Chain Links box.


Installing Different Size Sprockets

Use the calculators above to determine what size chain is needed when installing a different size sprocket or sprockets onto your electric scooter, bike, go kart, or other similar type of vehicle.

To determine what size chain is needed:

1- Use the Sprocket Center to Center Calculator to determine the center to center distance between the existing sprockets. The sprockets center to center distance will remain the same when different size sprockets are installed.

The sprockets center to center distance can also be measured with a tape measure however this may not be as accurate as using the calculator if the motor shaft and axle ends are offset from each other.

2- Enter the center to center distance between the two sprockets into the Chain Length Calculator. You can use the "Copy to Calculator Above" checkbox to do this if you wish.

3- Enter the new motor sprocket teeth number and or wheel/axle sprocket teeth number into the Chain Length Calculator and click the Calculate button. The number of chain links that are needed for the modification will be displayed in the Chain Links box.

4- Chains can be cut in even numbers only so round up the Chain Links number to the nearest even number. For example if the Chain Links result is 127.42 then round it up to 128 and purchase a 128 link chain.


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