Swift Bump Spring - 4000 lb. 1436A13 Reese has become the brand

Reese has become the brand of choice when performance is the expectation

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Swift Bump Spring - 4000 lb. 1436A13 Reese has become the brandSwift 2" O. D. bump springs offer the highest measurable shock stroke in the industry and, unlike inefficient rubber and foam bump stops, they are resistant to fatigue and heat. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs