Chain Information |

## Chain Information## Chain Sizing
The numbers used in chain sizing are all in 5/8ths on an inch. The first number is the pitch (the spacing between the pin centres) and the other two are for the width of the chain.
Therefore a 530 chain has a 5/8th inch pitch and a width of 3/8" A 520 chain has a 5/8th inch pitch and a width of 1/4" |