230_RIS_04.qxd 10/9/02 5:55 PM Page 140 Robot 4 • MINDSTORMS F1 Racer Steering Motor Step 1 Attach the gears and bushings. Steering Motor Step 2 Slide the 1x4 brick on to the axle. Steering Motor Step 3 Attach the 2x4 brick to the 1x4 brick. 140