The chain comes in standard 120 Links 1. O-Ring Drive Chain with Master Link (Tensile Strength of 8200 pounds) O-Ring Style means it will last longer with less maintenance than conventional chain.
Specs: Front Sprocket: Number of Teeth: 15 Teeth, Material: Steel , Rear Sprocket: Number of Teeth: 43 Teeth, Material: C49 High Carbon Steel
We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced.