Way back in the late 80's Mel Magnet (Founder of Rivera Primo Inc. formerly Rivera Engineering) was fooling around with pushrod design. Back then there wasn't much of a choice except straight steel pushrods, and Mel was pretty sure he could design something better. We needed something that was light, very strong and easy to get in and out of an Evo big twin motor. Research was done and prototypes were built at the Rivera Engineering R & D facility. What was ultimately made was a tapered pushrod for strength, using Chromemoly steel for durability and lightness and a unique adjuster to collapse the pushrod for removal without taking off the Evo rocker boxes. The Taper Lite was born!

Rivera Primo