Description
Upgrade your mountain biking experience with the Fox Shox SLS Spring – the ultimate choice for lightweight, high-performance shock upgrades. Designed with innovative materials and engineering, this Spring offers superior durability and responsiveness for your rear shock system.
Materials & Engineering:
Constructed from proprietary Fox Super Light Steel (SLS), this spring features a unique surface treatment and stress relief process that enables a smaller wire diameter with fewer coils. The result is a significantly lighter spring without compromising strength or performance. Its corrosion-resistant finish ensures long-lasting durability in all riding conditions.
Performance & Compatibility:
Designed for optimal shock response, the 300lbs spring provides reliable support and precise damping control. The 74mm (2.9″) stroke height makes it compatible with a variety of rear shocks, including Fox coil shocks, Marzocchi, DVO, MRP, and X-Fusion models. The 1.385″ (35mm) inside diameter fits a range of shock mounts for seamless installation. For detailed fitment assistance, visit [Ride Fox Shock Spring Guide](.bike/general-info/918/all-sls-and-standard-steel-rear-shock-spring-information).
Style & Use Case:
Featuring a vibrant orange finish, the Fox SLS Spring not only enhances your bike’s aesthetic but also ensures quick identification during setup or adjustments. Ideal for aggressive trail riding, enduro, and downhill disciplines, this spring is engineered to improve shock responsiveness and rider control, especially in demanding terrains where precision matters.
Innovative Features:
The proprietary SLS material and advanced manufacturing process offer a lightweight profile with increased strength and fatigue resistance. Its reduced coil count and smaller wire diameter help lower overall weight, contributing to a more efficient and agile ride.
Key Specifications:
– Spring Rate: 300 lbs
– Stroke Length: 74mm / 2.9 inches
– Inside Diameter: 1.385 inches (35mm)
– Material: Lightweight Steel with specialized surface treatment
– Color: Orange
– Compatibility: Fox coil shocks, Marzocchi, DVO, MRP, X-Fusion and more!
Optimize your bike’s suspension system with the Fox Shox SLS Spring- engineered for riders who demand lightweight, durability, and high performance. Ride confidently, knowing your shock system is equipped with a spring that’s built to perform at the highest level.
- Constructed from proprietary Fox Super Light Steel (SLS) with advanced surface treatment and stress relief processes, delivering a lighter, high-performance spring for aggressive downhill and trail riding.
- Designed with a 1.385″ inside diameter to ensure compatibility with Fox coil shocks as well as Marzocchi, DVO, MRP, and X-Fusion suspension systems, providing versatile fitting options for various mountain bike setups.
- Engineered with a 74mm (2.9″) stroke and a 300lb spring rate, optimizing shock responsiveness, control, and durability for riders seeking reliable suspension performance under demanding conditions.
- Featuring a sleek orange finish, the Fox SLS Spring combines style and visibility, making it easy to identify and coordinate with your bike’s overall aesthetic while enhancing your suspension tuning.
- The lightweight steel construction reduces spring weight without sacrificing strength or performance, making this spring ideal for competitive riders, enduro enthusiasts, and trail riders seeking optimized weight savings and superior suspension control.
| Rate (Lbs) | 300 |
| Stroke | 74mm/2.9″ |
| Color | Orange |
| Model Name | SLS |
| Material | Lightweight Steel |
| S.H.I.S. Stem Clamp Diameter | 35mm/1.385″ |






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