Aluminum Inner Hub/Aluminum Outer Ring (Pro) Series:
Used for Marine, all out Drag Racing, Circle Track or Road Racing where nothing is required to be run from the inner hub or outer ring (particularly dry sump pumps.) These balancers are particularly important on tight cornered tracks where engine rpm is low and instantaneous engine response is required to accelerate out of tight turns. Pro Series Balancers are available only in Neutral Balance and deliver extreme weight savings with as little as 2.25 lbs total balancer weight. Romac Pro Series Balancers are effective to 10,000 RPM.
