Coilover Spring 6in x 2.5in x 200lb Barrel

The Coilover Spring 6in x 2.5in x 200lb Barrel from SWIFT SPRINGS is a precision-engineered suspension component designed for drivers building custom lowered or performance-oriented suspension setups. This 200-pound spring rate barrel coil is the backbone of modern coilover assemblies, allowing you to dial in ride height and stiffness independently of your damper choice. Whether you're fabricating a street car with stance appeal or engineering a road course setup, this spring provides the linear spring rate needed for predictable chassis behavior under load and during transitions.

Built to SWIFT SPRINGS' exacting standards, this coilover spring features a 6-inch free length and 2.5-inch outer diameter, making it compatible with most aftermarket coilover bodies on the market. The 200lb/inch spring rate delivers a linear force curve that resists compression evenly, eliminating the progressive bind that softer springs experience under hard cornering or braking. The barrel design—where coils are wound at a consistent diameter—ensures consistent load distribution and eliminates binding issues common to linear-rate applications. Weighing just 1.6 lbs, it maintains a lightweight profile critical for unsprung mass reduction in performance applications.

This spring suits enthusiasts upgrading suspension on compact and mid-size platforms where a 200lb rate balances daily driveability with cornering stiffness. Installation requires pairing with a compatible coilover damper body and adjustable perches; it threads onto most mono-tube and double-tube designs. Verify your coilover platform accepts 2.5-inch OD springs and review damper stroke length to ensure proper seating without binding or bottoming. Professional installation is recommended to ensure correct spring preload, ride height, and alignment geometry for optimal handling and safety.