Billet aluminum enclosed clutch drum carrier for the HPI Racing Baja 5b r/c buggy. Enclosed design keep the dirt and water out, helping to prolong clutch life. Features a built-in rear upper brake mount and eliminates the 3 aluminum stand-off spacers. Includes high quality Fast Eddy bearings pre-installed and stainless mounting hardware. New larger bearing design! This now has a larger 28mm od bearing(same size as the crankshaft bearings) on the outside. Still uses the stock size clutch bell and pinion gears.