FK Red Bump Stop, MediumHyper Racing # 389 4272 This FK Red Bump Stop is 2 1 8" tall, 1 2" Internal diameter hole. A bump rubber is used to keep the car from bottoming out and to add spring rate and therefore dynamic corner weight when the chassis travels far enough to get into the bump rubber. Generally, bump rubbers are used on the left rear shock. It is used on winged racing in some situations to keep the car from bottoming out on the left rear on entry which will kill

800 lbs Tensile Strength

no grease groove

the right rear is typically just a female and male rod end threaded together making a 3-1/4" center to center shackle and the left rear is a 2" shackle rod making a 4" center to center shackle with the rod ends screwed in

Spring return locking mechanism keeps hub locked onto shaft

ARS shocks contain the highest quality components for maximum

Picture shown has optional rack box steering kit and left front brake assembly

Uses the 9-1/4" brake rotor

Fits Micro Sprint or Lightning Sprint

Hyper Racing # 06-120

and all of our Lightning Sprints and Midgets

Hyper Racing # 38-4583

- Cylinder weight: