Bel-Ray High Performance Fork Oil is formulated for use in all suspension forks including those using cartridge and dual-chamber systems. Through the use of carefully selected high viscosity base oils, stiction and fade are reduced providing smooth operation over a wide temperature range. Bel-Ray High Performance Fork Oil is available in seven viscosity grades; 2.5W, 5W, 7W, 10W, 15W, 20W and 30W. Recommended for all standard and cartridge type motorcycle fork suspensions on street and off-road motorcycles, ATVs and all other high performance applications. Direct replacement of original O.E.M. fill.