Swift Springs SBS4000 Bump Stop Spring 4000 lb/in Rate 2.0" OD

The Swift Springs SBS4000 is a high-performance bump stop spring engineered for racing and performance suspension applications. Unlike inefficient rubber and foam bump stops, this linear rate bump spring is resistant to fatigue and heat, providing consistent performance under extreme conditions.

Key Specifications:

• Spring Rate: 4000 lbs/in
• Free Length: 2.25 inches
• Outside Diameter: 2.000 inches
• Inside Diameter: 1.15 inches (29mm)
• Travel: 0.71 inches
• Material: Steel with copper powder coat finish

Features and Benefits:

• Offers the highest measurable shock stroke in the industry
• Linear spring rate provides predictable, consistent suspension response
• Superior heat and fatigue resistance compared to traditional rubber bump stops
• Precision-manufactured for racing and high-performance applications

Important Notes: Sold individually, retainers not included. Requires (2) 29mm bump spring retainers or Swift Bump spring caps (both sold in pairs).

Swift Springs manufactures performance suspension components using advanced materials and precision engineering, trusted by professional racing teams worldwide across multiple motorsports disciplines.