RFF Racing Fork Fluids are a series of high V.I. synthetic blend fluids designed to exceed the demands of all cartridge and damper rod applications. RFF maintains viscosity providing consistent damping under the most severe temperature conditions. A proprietary additive system features the best anti-stiction, anti-friction and anti-wear technology. RFF is treated with special anti-foam, seal conditioners, anti-oxidation and corrosion inhibitors for long term durability and component life.