SWIFT SPRINGS Z65-152-120 Swift Springs Z65-152-120 Metric Coil-Over Spring, 12 kgf/mm Rate, Copper Powder Coat

The Swift Springs Z65-152-120 is a precision-engineered metric coil-over spring designed for performance suspension applications that demand consistent response and dependable durability. Built from high-quality spring steel, this coil spring delivers a 12 kgf/mm spring rate for controlled suspension movement and predictable handling characteristics. It is suited for compatible coil-over systems used in track, competition, and performance-focused street vehicles.
The spring features a copper powder-coated finish that provides a distinctive appearance while helping protect the steel surface from routine environmental exposure. Its carefully formed coils support consistent operation throughout the suspension’s range of movement, helping maintain reliable spring performance during acceleration, braking, cornering, and other demanding driving conditions. As with all suspension components, compatibility with the vehicle, coil-over hardware, and intended setup should be confirmed before installation.
Swift Springs is recognized for producing performance suspension components with an emphasis on material quality, manufacturing consistency, and motorsport-oriented design. The Z65-152-120 metric coil-over spring is supplied individually, making it a practical choice for replacement, suspension tuning, or building a matched spring package. Use the specified spring rate when balancing ride control, chassis response, tire grip, and overall vehicle setup. Professional installation and proper suspension adjustment are recommended to help ensure the spring works as intended with the rest of the coil-over system.

Features:

• Metric coil-over spring designed for compatible performance suspension systems

• 12 kgf/mm spring rate supports controlled suspension response and predictable handling

• High-quality steel construction provides strength and dependable service life

• Copper powder-coated finish helps protect the spring surface and adds a distinctive appearance

• Suitable for replacement, suspension tuning, track, competition, and performance street applications

• Supplied individually for flexible coil-over setup and replacement needs