Clutch Technology That Works ...
Industry veteran Ben Kudon , President of California based American Prime Manufacturing ( APM ), says : " There are many clutches out there , but there are none that work as well as the Comp Master ." " Our Comp Master clutch series utilizes state-of-the-art diaphragm spring technology for even pressure on the friction and drive plates , providing 100 % downward force . Our diaphragm springs are the best in the industry for minimal wrist strain and maximum clutch pack pressure . That means maximum horsepower and torque delivery to the rear wheel ." APM clutch hubs are made from highstrength , hardened aluminum and hardened steel with " exacting tolerances in the teeth and splines for superb clutch plate alignment and maximum engagement ." There are three different silver diaphragm springs available in black , silver and gold " to maximize power output ." The outer aluminum hub is made of CNC-machined , high-strength aluminum with a hard face coating , while the inner steel drive hub is CNC-machined in hardened steel and coated to " minimize surface rust ." APM clutch packs are made with carbon / Kevlar friction material that Ben describes as " aggressive but easy to control ." Comp Master clutches cover Harley Big Twins from 1937-present M-8 models , and Ben says : " APM designs all its parts to interchange with Rivera Primo parts of the same type and application , with every part manufactured in the U . S . A . and assembled in our Southern California plant ."
Inner steel drive hub
Outer aluminium clutch hub
AMERICAN PRIME MANUFACTURING Santa Fe Springs , California , USA info @ apminc . us www . americanprimemfginc . com
Clutch packs
Silver diaphragm spring
52 AFTERMARKET MOTO DESIGN - SEPTEMBER 2024 www . AMDmag . com