Pinewood Derby Car BSA Legal Ready to Race Wide Wheel Base Wheel Width between axles: 5 11/16" (BSA SLOTS AVAILABLE UPON REQUEST. MUST ASK!) Weight=138-141 grams (Less than 5oz) Length: 7" Track Clearance: 3/8" Width: 1.75" 3 Wheel Racing Car designed to ride the center rail Dry Graphite Lube.