{"product_id":"sprindex-downhill-rear-shock-spring-rssp0042-mtb-rear-shock-spring","title":"Sprindex Adjustable DH Coil Spring 400-440 lbs | 75mm Stroke, Lightweight High-Tensile Steel, Multi-Shock Adapters, Customizable Rate \u0026 Compatible with Mountain Bike Suspensions","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eExperience premium suspension performance with the Sprindex Adjustable Weight Rear Coil Spring - the ultimate upgrade for downhill and mountain biking enthusiasts seeking precise ride customization. Designed with innovative engineering and high-performance materials, this coil spring offers unparalleled adjustability and durability to optimize your shock system.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eConstructed from super high tensile spring steel, the Sprindex coil spring combines lightweight design with exceptional strength. This advanced steel alloy ensures the spring can handle the stresses of aggressive downhill riding while maintaining a lightweight profile, making it lighter than standard springs without compromising durability. The coil's 160mm length and 75mm stroke are engineered specifically for downhill applications, providing a reliable foundation for demanding terrain.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Components:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eThe key feature of the Sprindex spring is its adjustable spring rate, ranging from 400 to 440 lbs. Users can fine-tune the stiffness by changing the length of effective coils, allowing for seamless customization based on rider weight, terrain, and riding style. The spring includes a set of five Delrin performance adapters that enable the spring to spin freely during compression, reducing wear and noise, and ensuring consistent performance across various shock models. This adaptability ensures compatibility with a broad range of shocks and setups, enhancing suspension responsiveness and control.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eInnovative \u0026amp; Differentiating Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003e- Adjustable Spring Rate: Easily modify stiffness without changing preload, providing a tailored feel for downhill riding or aggressive trail riding.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003e- Versatile Compatibility: Includes adapters for different shock sizes and setups, simplifying integration with most downhill and enduro shocks.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003e- Smooth Bottom-Out Behavior: The spring's compression profile features a linear rate for the first 80% of stroke, transitioning to a progressive rate in the last 20% to absorb impacts smoothly and prevent harsh bottom-outs.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003e- Lightweight \u0026amp; Durable: Achieves weight savings over traditional springs while maintaining strength and fatigue resistance, perfect for riders seeking efficiency and durability.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003eDesigned specifically for downhill and gravity-focused mountain biking, this coil spring enhances shock performance, offering precise tuning for challenging descents and technical terrain. Its sleek black finish complements any bike build, blending style with function. Whether you're racing DH or hitting rugged trails, the Sprindex spring ensures your suspension responds accurately to every maneuver.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003eOptimize Your Ride Today:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003eUpgrade your downhill bike with the Sprindex Adjustable Weight Rear Coil Spring and experience tailored suspension performance, improved control, and reduced weight. Perfect for riders seeking reliability and customizable setup, this spring is the ideal choice for high-performance mountain biking.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e---\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003eKey Search Terms:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003eDownhill coil spring, adjustable mountain bike spring, suspension upgrade, high tensile spring steel, lightweight coil spring, shock compatibility, progressive coil spring, suspension tuning, gravity bike accessories, DH bike components\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eCustomizable Spring Rate: Easily adjust the spring's effective rate between 400-440 lbs by changing the coil length, providing tailored suspension performance tailored for aggressive downhill riding and high-impact impacts.\u003c\/li\u003e\n\u003cli\u003ePremium Materials and Construction: Crafted from super high-tensile spring steel, this coil spring offers exceptional strength, durability, and lightweight performance, ensuring reliable operation under demanding DH conditions and reducing overall suspension weight.\u003c\/li\u003e\n\u003cli\u003eVersatile Compatibility: Comes with five Delrin adapters to fit a variety of shock sizes and configurations, including 75mm stroke shocks, ensuring seamless integration with different downhill setups and aftermarket suspension components.\u003c\/li\u003e\n\u003cli\u003eEnhanced Performance \u0026amp; Comfort: Features a progressive end-rate design with a linear response in the initial 80% of the stroke and a more progressive rate in the last 20%, smoothing out bottom-outs for improved control, comfort, and confidence on aggressive terrain.\u003c\/li\u003e\n\u003cli\u003eDurable \u0026amp; Easy to Adjust: Includes an innovative adjustable mechanism that allows coil rotation for fine-tuning without affecting preload, while the lightweight design reduces stress on suspension components, delivering reliable, high-performance downhill suspension.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Sprindex","offers":[{"title":"Default Title","offer_id":42207853740099,"sku":"RSSP0042","price":160.58,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/942535-11_1.jpg?v=1779325359","url":"https:\/\/365cycles.com\/products\/sprindex-downhill-rear-shock-spring-rssp0042-mtb-rear-shock-spring","provider":"365 Cycles","version":"1.0","type":"link"}