Question:  How much rear axle cant is too much? Answer: There are differing opinions on how much rear cant is enough or too much. For me, there is no need to go more that 3 degrees. I usually use the Derby Worx axle press and rail rider tool and put 2.5 degrees cant in my [...]

OK, so you already know that friction is enemy number one to the Pinewood Derby car builder.  One troublesome point source of friction is where the wheel hub rubs against the car body.  During the race, the wheels tend to migrate back and forth on the axle shaft and make contact with the car body.  [...]

Question: Where should I place the center of gravity on my Pinewood Derby car? – Answer: First, I will define center of gravity (COG) as it pertains to Pinewood Derby cars. What is Center of Gravity? The center of gravity of your pinewood derby car is the distance that the balance point of the car [...]

The Derby Monkey Axle Lock Set Screw Kit is perfect for locking axles and protecting your Pinewood Derby car’s alignment. Simply drill a #44 hole underneath the body directly under each axle. Insert the4/40 x 1/8″ set screws. Align the car. Tighten the screws. Your alignment is now locked in place.

Are Rail Riders really faster pinewood derby cars? Find out.