Skip to content Skip to footer

Pinewood Derby Rail Rider™ Axle Kit (4x Axles)


Axle kit (4x axles) that contain: 2×2.5 degree axles, 1×1.5 degree angles, 1x straight axle

683 in stock

SKU: SKU126 Category: Product ID: 18738


What is rail riding?
If a pinewood derby car is aligned to run straight, but the track is not consistently level (very common), the car will contact the center guide rail both with the left wheels and the right wheels.  it will basically wobble back and forth all the way down the track. robbing you of all your speed.  If a raised wheel is used, then the raised wheel will likely contact the guide rail and start spinning. This will cancel any benefit attained from the raised wheel.

Derby Worx came up with the idea of riding the center rail.  Riding the center rail keeps only one wheel touching the track and keeps a consistent travel down the track.  If you are not moving back and forth, then you must be moving forward!  Faster!

To compensate for the unknown condition of the track, the car can be intentionally steered such that the raised wheel does not contact the guide rail. For this discussion, we will assume that the left-front wheel is raised (if the right-front wheel is raised, then everything discussed below is reversed).

Adjust the right-front wheel so that the car drifts to the left – this keeps the left-front wheel from contacting the guide rail. With this drift, and if the rear wheels are aligned to run straight, then only the right-front wheel will contact the guide rail. To ensure that the right-rear wheel stays off the rail, the right-front of the car can be narrowed by 1/16 inch.

Tests show that when this Rail-rider technique is implemented, car performance is consistently faster than straight alignment.


We have done the work for you.

We have saved you both time and costs because you do not have to purchase the tooling.

Your choice of polish level depending on your desire.  Our technique is perfected and you can see the results.  Quality and Repeatability time after time.  

Two axles are bent at 2.5 deg (for rear wheels), one axle is bent at 1.5 deg (for front dominant wheel), and one axle is straight (for raised wheel).


There are no reviews yet.

Be the first to review “Pinewood Derby Rail Rider™ Axle Kit (4x Axles)”

Your email address will not be published. Required fields are marked *

Pinewood Derby ® Wheels and Axles

My proven and tested theory shows that you can get the most of of your Pinewood Derby ® car with my Pinewood Derby ® speed axles and Pinewood Derby ® speed wheels while still being 100% legal ! Complete Sets with axles, wheels, cotton applicators, gap gauge, and dry graphite lube. Speeds measured at bottom of curve reaching 17fps with speeds of up to 15.5fps at the last 10 feet of track.
Top speeds are achieved with lighter wheels. Go as light as your rules allow!


San Antonio, TX 78278

Quick access
Get In Touch

Copyright © 2022 Machine Envy, LLC. All Rights Reserved.
Derby Dust® is a registered trademark of Machine Envy, LLC.
Machine Envy, LLC is neither affiliated with nor endorsed by the Boy Scouts of America. Pinewood Derby® is a registered trademark of Boy Scouts of America.
Derby Worx® is a registered trade mark of Derby Worx, Inc.
Awana® is a Registered Trademark of Awana Clubs International. Machine Envy, LLC is neither affiliated with nor endorsed by the Awana Clubs International.