Fox Factory ULF Suspension Oil Fox Suspension 5WT ULF Suspension Fluid is crafted to minimize friction and protect against wear in forks and shocks, ensuring smoother performance and longer-lasting durability. It is specifically designed for use in rebuildable shocks and float-style shock air sleeves and bearings, optimizing suspension functionality. Features: Ultra low friction suspension fluid Float oil is an anti-friction lube designed for float style shocks (air) Lubricates theair sleeve and bearing 5WT viscosity Shock oil works on all rebuildable shocks Stiction-reducing formulationfor smooth transition from rebound to compression Anti-foam, anti-cavitation, anti-corrosion Trust the Fox