Specification: Spring Length: 350mm/13.78in, Spring Rate: 8kg/mm (448lb/in), Spring Inner Diameter: 117mm/4.61in
High Tensile Spring: Under 600,000 times of continuous testing to ensure its strength. Plus, the special surface treatment by black coating is to improve the durability and extend the lifespan
24/7 Customer Support: maXpeedingrods offers lifetime technical support and 1-year limited warranty for quality-related issues since the date of purchase. Feel free to contact us if you have any questions