Set of front progressive springs for XB2 and XB4. These springs are reduced with an available end and very different modern characteristics. The key advantage & good thing about progressive springs usually once the vehicle at first goes into the part the springs work like softer springs to supply maximum traction. Because the framework begins to roll in the center of the corner, the spring rate progressively increases until it works like a stiffer springtime that allows the vehicle to maintain maximum cornering rate. XRAY springs, are manually measured, selected, and matched into pairs to ensure precisely equal length and damping faculties. Each spring is laser-engraved with stripes to point the tone, the greater amount of strips, the stiffer the springtime.
