Ultra High Travel (UHT) Hypercoils are designed specifically for light rate / high travel coil-over applications (dirt & pavement). UHT designs meet the requirements of soft spring / big bar set ups and remain consistent in free length & installed height. The new UHT design features a larger "body bulge" over our standard OBD designs, allowing for additional deflection, rate linearity and resistance to bowing. Currently available 16" free length with 2.5" inner diameter. Choose from spring rates of 110, 125, 138, 150, 175, and 250.