Safety from optimal chassis tuning! Linear coiled fork springs provide ideal function for road and racing purposes. Even springing features across the whole working range - for best feedback, especially well suited to sporty use. To match the damper with the fork springs, the recommended Wilbers fork oil should be used (SAE 15 - order No. 55040300040) with an air chamber of 110 mm - the viscosity may differ from the original oil.