ANDREWS 3A SPROCKETS STANDARD RATIO 1.23

About this category

The Andrews 3A series offers sprockets manufactured from high-strength steel with precise heat treatment, ensuring durability and smooth gear engagement. Ideal for Evolution, Twin Cam and Milwaukee Eight engines, these sprockets replace worn or broken OEM units. The 1.23 ratio optimises initial engagement, improving clutch response and reducing wear on the primary chain. Compatible with a wide range of Dyna, Softail, Sportster and Touring models, depending on the year and engine type. Includes spare sprocket options for preventive maintenance or major primary repairs.