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SPRING RATE CONVERSION lbs/in kg/mm N/mm 100 1.79 17.51 125 2.23 21.89 150 2.68 26.27 175 3.13 30.65 200 3.57 35.03 225 4.02 39.40 250 4.46 43.78 275 4.91 48.16 300 5.36 52.54 … read more

Understanding Spring Rates: What They Actually Do — and How to Choose the Right Ones What Is a Spring Rate? A spring rate is simply the amount of force required to compress a spring by one inch … read more

Introduction Motion ratios are one of the most important — and most misunderstood — concepts in suspension tuning. Here’s the reality: > Your wheel does NOT move the same distance … read more

Introduction Whether you daily your car, track it, or build for touge/canyon runs, understanding understeer and oversteer is essential. These are the two fundamental balance behaviors of a vehicle, an … read more

Introduction Damping is the heart of any suspension system. Spring rates determine how much force is required to compress the spring — but shocks determine how fast and how smoothly the suspensi … read more