Hyperco’s OBD design concept has proven to be a performance advantage in many forms of racing… from Indy Cars and Sports cars, to Dirt and Pavement Late Models. And now, they are available for 1/4 Midget competition!
With design input from the top 1/4 Midget chassis builders and race teams, Hyperco has developed spring designs that meet the specific requirements of modern ¼ midget racing. These unique Optimum Body Diameter spring designs enable Hyperco to take full advantage of our ultra high tensile material and optimize the applied stress by adjusting the spring’s body diameter relative to the end coils.
4.25″ Free Length x 1.68″ ID
Available in spring rate increments without tolerance overlap, ensuring predictable suspension tuning for a wide range of track conditions.
75#, 80#, 87#, 94#, 100#, 108#, 116#, 124#, 132#, 140#, 150#