Fox Spring SLS
Best lightweight suspension upgrade for riders seeking performance on a budget.
This lightweight steel spring offers a significant weight reduction over traditional steel coils while maintaining the durability and linear feel riders prefer. It is the ideal upgrade for those seeking to refine their suspension performance without the high cost of air-only systems.
$129.00
at
S4suspension
Who it's for
- Weight-conscious riders seeking titanium-like performance on a budget
- Aggressive riders needing long-term suspension reliability and consistency
- Precision-focused tuners wanting exact spring rates for their setup
Who should skip it
- Budget-minded cyclists looking for affordable suspension upgrades
- Weight-obsessed racers chasing the absolute lightest bike build
- Riders preferring the quick convenience of air pressure adjustments
Performance breakdown
Weight Savings
Remarkably lighter than standard steel, rivaling the weight of titanium options.
Cross-Brand Compatibility
Standardized diameter makes swapping between DVO, MRP, and X-Fusion shocks seamless.
Material Durability
High-grade steel construction ensures long-term resilience under aggressive riding conditions.
Suspension Tuning
Provides precise, predictable spring rates for dialing in your bike's feel.
Value Proposition
Delivers premium weight reduction without the exorbitant cost of titanium components.
Installation Ease
Straightforward swap that requires minimal tools for most coil-shock setups.
Key Specs
Material
Super Light Steel (SLS)
Inner Diameter
35.179 mm / 1.385 inches
Compatibility
Fox, Marzocchi, DVO, MRP, X-Fusion coil shocks
Component Application
Rear Suspension
Stroke Options
2.4"/61mm, 2.65"/67mm, 2.9"/74mm, 3.15"/80mm, 3.65"/93mm
Available Weights
300, 325, 350, 375, 400, 425, 450, 475, 500, 550, 600, 650, 700
Intended Discipline
Mountain Biking
Know before you buy
Still have a question?
Ask Metto anything about the Fox Spring SLS before you decide.
