Enhance your downhill and trail bike performance with the FOX Steel Rear Shock Coil Spring - a upgrade designed for durability, precision, and reliable shock absorption. Crafted from proprietary FOX standard steel, this coil spring offers superior performance for mountain bike suspension systems. Materials & Construction: Made from FOX standard steel, this coil spring features a resilient black powder-coat finish, providing excellent corrosion resistance and a sleek, professional look. The 1.385" inside diameter ensures compatibility with a wide range of rear shocks, including FOX, Marzocchi, DVO, MRP, and X-Fusion models. Performance & Engineering: Rated at 500 lbs, this coil spring delivers optimal support and damping control for riders seeking enhanced stability on aggressive trails, technical descents, and high-speed descents. With a spring travel of 2.35 inches (60mm), it is designed to match shocks with less than 2.25 inches of travel, ensuring the perfect fit for your suspension setup. Components & Technology: Featuring precise spring markings (500 x 2.35), this spring allows for quick identification and proper pairing with compatible shocks. Each spring is marked with its spring rate in lbs/in in 50 lb increments, facilitating easy adjustments for personalized suspension tuning. The design also includes FOX vendor part numbering for reliable identification and ordering. Style & Use Case: Designed for serious mountain bikers, this coil spring enhances shock performance by providing consistent, fade-free support during rugged terrain riding. Its black finish complements modern mountain bikes, offering a sleek aesthetic suited for aggressive trail riding, enduro, and downhill disciplines. Innovative & Differentiating Features: - Compatibility with FOX, Marzocchi, DVO, MRP, and X-Fusion shocks thanks to the standard 1.385" I.D. - steel alloy construction for durability, longevity, and sustained performance - Protective black