Standard Deviation (Formula, Example, and Calculation) American Standard Logo, symbol, meaning, history, PNG, brand Standard Form (A) Worksheet Printable Maths Worksheets Standards Stock Vector Images Alamy American Standard Logo, symbol, meaning, history, PNG, brand. Swift coilover springs are mainly utilized in motorsports ranging anywhere from dirt to pavement where we've engineered for corner specific with our HS5. TW proprietary material, providing the optimal spring design to maximize your vehicle potential amplifying every advantage. Discover our wide variety of length, inner diameter and rates. The 3" ID coilover springs will give you the most accurate through stroke with linear rate and comes in multiple lengths! Specifications Part Number: 120 300 450 Length : 12inch Inner Diameter : 3inch Spring Rate : 450lbs inch Usable Stroke : 6. 4inch Max Stroke : 7. 0inch Max Load : 3,154lbs *Image example is a 100lbs inch spring rate Browse more 12in Standard Coilover Springs to find the right suspension setup for your build.