Enhance your suspension with BC Racing 62mm I.D. S-Barrel Springs, designed for optimal performance and ride comfort. Unlike linear springs, S-barrel springs feature a progressive spring rate, offering a smoother transition between compression stages for improved handling and ride quality. Constructed from SAE9254 high-tensile steel, these springs are engineered for durability and consistency. A zinc undercoating and outer powder coating provide excellent rust resistance, ensuring longevity in all driving conditions. BC Racing S-barrel springs are available in various lengths from 120mm to 260mm and spring rates from 3K to 20K, giving you flexibility in tuning your suspension for the perfect balance of performance and comfort. If you need higher spring rates up to 40K, we recommend upgrading to Swift Springs. Features 62mm inner diameter – industry-standard fitment S-barrel design – progressive rate for enhanced comfort and handling SAE9254 steel construction – high tensile strength for longevity Zinc & powder coating – superior rust resistance Wide range of lengths & rates – from 120mm to 260mm & 3K to 20K Compatible with BC Racing Coilovers (of matching spring size) Specifications Brand: BC Racing Quantity 1 Spring Inner Diameter: 62mm Spring Type S-Barrel Additional Notes Customize at your own discretion. Please ensure you are selecting the right specs when customizing your coilovers. We highly recommend ensuring your struts are properly valved to match your chosen spring rates. If you're increasing or decreasing spring rates by 4k or more, it's best to revalve your struts accordingly. Failing to properly match your springs and struts can lead to coilover damage, reduced performance, a noticeably harsher ride, and may void the warranty.