The first step to achieving great suspension is selecting the correct spring. hlins offers a wide range of 7 fork spring rates for the DH38, ensuring a proper ride regardless of the rider's weight, speed, or terrain.Only intended for use in the Ohlins DH38 fork40 lbs/in spring rate intended for riders weighing between 140 lbs to 160 lbsTravel range is 130mm-180mmHas three colored bands to identify spring rate (40 lbs/in has yellow bands)212 mm of actual stroke408 mm (+/- 4mm) free length18.5 mm I.D. / 4.3 mm wire diameter Ohlins DH38 Front Fork Coil Spring Coil Springs & Parts UPC: 840153642111