Landrum Springs Progressive Rear Coil Spring

The Landrum Springs Progressive Rear Coil Spring is a conventional rear racing coil spring with a progressive rate. It starts at a lower spring rate and moves to a higher rate as it compresses. Landrum builds it for racers who want better grip and more support under load. Each spring is a rear coil spring for track and performance use.

Key Features:

• Progressive rate design: The softer early travel helps the tire keep contact with the track. The rate then rises to give more support deeper into compression.
• High tensile chrome silicon alloy steel: Landrum makes these springs from US-made alloy steel for strength and consistent performance.
• Resists coil bind: The springs are engineered to take repeated compression to coil bind without losing free height.
• Dyno sheet included: Every spring comes with a dyno sheet showing it meets Landrum's ±2% rate specification.
• Ground ends: The rear springs are closed and ground on both ends so they seat properly against the spring seat.
• Powder-coated finish: The coating protects the spring without plating, which avoids hydrogen embrittlement.

Benefits: The changing rate improves weight transfer during acceleration, braking and cornering. It also helps reduce bottoming and gives racers more tuning flexibility as track conditions change. Made in the USA by Landrum Performance Spring, a name known in racing suspension.