Fenwicks stealth high speed greasemarginal gains are very important in the cycling industry so replace the existing grease in your rotational cup cone or cartridge bearings to remove wasted watts and reduce friction fenwicks stealth high speed grease has a super low viscosity to improve bearing efficiency for race days the 80ml tube packaging negates the need for a specific grease gun as it includes a pinpoint nozzle for accurate application and minimal wastage features super low frict