Traxxas 8363 Spring, shock (red) (4.075 rate, green stripe) (2)

These springs are made from high-quality spring steel with a durable powder-coated finish. Different spring rates allow you tune your 4-Tec's suspension performance or compensate for lighter or heavier vehicle configurations. The higher the rate, the stiffer the spring. (4.075-Rate Green Stripe) (Sold in pairs) Fits short Ultra Shocks.