Main Chassis (from the XI Sport NU) Suspension Arm, a car should have at least 4 of these, 2 at the front and 2 at the rear. Rear hub, Turn Knuckle and C hub. The C Hub holds the Turn Knuckle at the front. Servo horn, for connecting to the steering linkage. Shock Tower, for … Continue reading RC Car Terminologies Part 1 (parts sponsored by 3Racing)