New Eibach 16" XT Barrel Springs for the dirt and pavement circle track market. With the XT "Extreme Travel" Barrel design the ends actually nest inside the barrel portion slightly along with utilizing the highest tensile strength wire, we were able to use fewer coils per spring giving you the lightest and highest traveling spring in its class. This spring series utilizes the same highest tensile strength wire technology that is used in our Platinum series rear springs for the NASCAR Sprint Cup series. This technology delivers where you need it most: reduced unsprung weight, maximum travel and race-winning performance that lasts. Available in 10,” 12”, 14” And 16” lengths with rates from 125 to 250 pounds-per-inch, their distinctive XT Barrel shape works seamlessly with standard 2.5-inch spring perches, allowing easy access to the lower ball joint while retaining the benefits of a larger diameter spring-with more travel and more shock body clearance. The continuous taper of Eibach’s XT Barrel springs to a maximum 3.0” ID allows our engineers to increase the spring-coil pitch beyond any previous designs, yielding a lighter spring, and increased usable travel. EIBACH 16" XT BARREL SPRING Ultra Lightweight for Reduced Unsprung Mass Maximum Travel in Combination with the Smallest Block Heights Lowest Side Loads with Load Center Ideally Located Relative to the Spring Axis Precision Tolerances—The Tightest in the Industry Each Spring Individually Tested and Rated Eibach Springs Lifetime Warranty.