How to use the Chain Links Calculator for Generic Final Drive:

This chain links calculator is intended to be used independant of any database loaded bike, hence the 'Generic'-part. You can use it without loading a bike and need to enter the 4 parameters yourself. It assumes you have a set of front and rear sprockets, a chain type and a semi-fixed (target) sprocket distance and you want to know the number of chain links needed to achieve that sprocket distance.

To use it, simply start entering the details in the 4 left fields; front sprocket teeth, rear sprocket teeth, chain pitch and (target) sprocket distance. Once done it will calculate the 4 most right fields and it will look like this:

The information entered is used to calculate the the theoretical number of links, in this example 94.10 links. As that is an impossible number, the closest possible number is calculated and shown as the 'Number Links Recommended', in this case 94. As this deviates from the calculated # of links, also the resulting sprocket distance will deviate and is shown as the 'Resukting Sprocket Distance'. In the most right field you can see how much you will have to move your rear wheel forwards or backwards as compared to your entered sprocket distance.

If it shows >-<, the rear wheel needs to be moved towards the front.
If it shows <->, the rear wheel needs to be moved backward, away from the front.

Both the Chain Pitch and Sprocket distance need to be entered in the Units that are currently selected, either Imperial or Metric. Both fields show the current Units, in this example they say ".....in Inch". In this case, if the pitch is entered in milimeter the incorrect entered input is cleared and a popup will appear that asks to enter these 2 fields in the correct unit.

This calculator assumes a New chain to be used so no additional length is added for existing chain wear !

Additional Help can be found here: Menu / Help / Chain & Belt Geom. / Links Calculator