Turtle Racing V2 Billet Aluminum Clutch housing for 54mm clutches on the HPI Baja. 6061 Billet Aluminum Clutch housing for all Baja models. Cooling fins added, well proven for removing heat. This clutch housing will help cool your clutch and motor. Much stronger than stock cast housing. Correct “under stud” length, no spacer needed. Access hole for adjustable clutches. Includes screws and rubber plug for access hole.