The Ultimate Rear hub solution for all upgraded HPI Bajas and Hybrids! Heavy Duty One-piece Billet design, machined from 6082 British Aluminium. These do not fit stock baja rear ball joints. You must upgrade to a rose joint setup which is a must anyway to solve the problem with stock joints failing.  Over-size 28mm Wheel bearings (included in price and pre-fitted)Setup at a 0 degree angle which experience has shown to be the best when running powerful engines and upgraded arms etc.Lighter than other brands due to pockets and 3D milling around bearing bores.Proper press-fit bearing tolerances (no more sloppy bearing bores after a few months)Our famous industry leading machining finishSupplied with 10.9 BZP fitting hardware.