RockShox Coil Spring

Spring rate selection depends on your rider weight, bike leverage ratio, and personal preference for sag. A 400 lb spring is generally suited for lighter to mid-weight riders, but you should consult your specific bike frame's suspension setup guide to ensure it aligns with your sag requirements.

This spring is designed for specific metric shocks with a stroke length between 47.5 mm and 55 mm. Before purchasing, verify that your shock's stroke length and eye-to-eye measurement match the spring's specifications to ensure proper fitment.

Coil springs are prized for their linear feel, which provides consistent small-bump sensitivity and traction throughout the entire travel range. Unlike air springs, they are less affected by temperature changes and friction, offering a more predictable, planted ride quality on technical terrain.

The 134 mm measurement refers to the physical length of the coil spring itself. It is critical to match this length to your shock's body to prevent the spring from being too loose or too compressed during installation.

While this spring is engineered for RockShox metric suspension systems, it may fit other brands if the inner diameter and length specifications match your shock body. However, we recommend sticking to the manufacturer's specified parts to guarantee the intended performance and safety.