DRP has always recommended using a good quality grease in your wheel bearings, but no brand in particular. Recently, though they tested a number of popular greases and some lesser known secrets. Their results were crystal clear. Kluber high speed roller bearing greases are the best we've found, period. Over 70% increase in free spin verses the next best grease. We worked with the Kluber engineers to determine the best grease for our short track applications and now offer it to you. You will be impressed. Available in cartridge form (for our bearing packers) and in convenient syringes. A 390g cartridge will pack approximately 80 bearings.