Chain Links Calculator for Generic Final Drive with new chain
There are 2 approaches to determine what needs to happen to your chain when changing sprocket sizes:
For help on the 2nd approach follow this link: Calculate new wheel position based on existing chain/belt length
This calculator can even be used without loading a specific bike as there are only 4 parameters needed and in this approach are all known. So it can used with or without loading a specific bike first ! Hence the title "Links Calculator for Generic Final Drive"
The parameters to be entered are:
After entering that data it will look like this example:
The first 4 left fields are obviously for
entering the 4 parameters which will result in a calculated number of links in
column 'Number of Links Calculated'. As you can only buy whole links, the
calculated number will not work. So that calculated number is changed to the
nearest even number of links in column ' Number of Links Recommended'.
As this deviates from the calculated number links (118.66), also the
sprocket distance that will result from a
chain with 118 links will be different as specified by you. That is why
in column 'Actual Sprocket Distance' the new resulting sprocket distance
is shown which will be 27.04 inch instead of the initial 27.25.
The 'Loaded Bike: Effect of Final Drive changes on links & wheel position' part on the
main page uses the second approach: "Using the current chain on a bike to
calculate the new position of the rear wheel after changing sprocket size".
This approach calculates a new sprocket distance using a given