Fox Racing Shox SLS Spring Black - 61 mm travel 2025

FOX Super Light Steel (SLS) springs here in colour Black are exactly that : super light steel springs. They're actually lighter than titanium coils. Using technology developed for highly stressed valve springs in drag racing cars, FOX was able to drastically reduce the weight of the spring. A proprietary surface treatment and stress relief process removes residual stresses from the spring, allowing them to withstand higher stresses. Each spring is optimized by using a smaller wire diameter and less coils, creating a lighter spring.

Features

• SLS Steel Spring
• Spring Stroke : up to 2.40 (61 mm)
• Available in 25 or 50-pound increments
• Shock compatiblity
    - 200 mm / 7.875 in (travel 57.15 mm / 2.25 in)
    - 185 mm (travel 50 mm)
    - 185 mm (travel 52.5 mm)
    - 185 mm (travel 55 mm)
    - 210 mm (travel 50 mm)
    - 210 mm (travel 52.5 mm)
    - 210 mm (travel 55 mm)
    - 230 mm (travel 57.5 mm)
• Shock stroke compatiblity : 50 mm to 57.5 mm

Important notice : Some springs may be too long or too short to fit on certain model shocks. Pleaser refer the chart below

• DHX (2022+) and DHX Live Valve rear shocks
    - Eye to Eye 185 mm and 210 mm : Min length of the spring 110.3 mm / Max length of the spring 133.9 mm
    - Eye to Eye 230 mm : Min length of the spring 120.3 mm / Max length of the spring 153.9 mm
• DHX2 (2021+) rear shocks
    - Eye to Eye 185 mm  : Min length of the spring 113.8 mm / Max length of the spring 134.6 mm
    - Eye to Eye 210 mm  : Min length of the spring 114 mm / Max length of the spring 142.2 mm
    - Eye to Eye 230 mm : Min length of the spring 123.9 mm / Max length of the spring 162.3 mm 
• VAN R and Bomber CR rear shocks
    - Eye to Eye 185 mm : Min length of the spring 106.9 mm / Max length of the spring 131.8 mm
    - Eye to Eye 210 mm : Min length of the spring 112.5 mm / Max length of the spring 150.4 mm
    - Eye to Eye 230 mm : Min length of the spring 132.6 mm / Max length of the spring 170.4 mm

How to understand the indication on the spring with for example 550x2.40x4.90 TLG

• 550 is the spring rate (higher is this value, stronger is the coil)
• 2.40 is the maximum travel of the spring in inches (here 2.40 inch or 61 mm)
• 4.90 is the total lenght of the spring in inches (here 4.90 inches of  124 mm)