Fifty years ago weak drum brakes, leaky carburetors and paper air filters were the standard for cars and motorcycles coming off production lines. Now consumers are spoiled with shiny disc brakes, reliable fuel-injection and K&N air filters. Ken Johnson and Norm Macdonald were two motorcycle racers who didn’t do much for brakes or carbs, but they did revolutionize racing with their filters.
In the 1960s when Ken and Norm (K&N) were racing motorcycles and they noticed the inadequacy of the cheap paper filters on their bikes. Eventually the pair invented the first version of the high-flow cotton air filters. Learn more about K&N filters Here.