MAXIMUM VELOCITY! ®

Super Stock
Needle Axle Wheels
for Pinewood Derby Cars






If you are looking for a superior set of high-performance wheels for a race requiring stock wheels of no particular brand, then you've found them. These wheels by DerbyWorx are the fastest stock-width wheels on the market today!

Benefits

  • Easy to Use - These wheels are ready to roll. No preparation required!


  • Top Performance - Precision-machined from the raw material (not injection-molded like most wheels) to provide excellent precision in all dimensions for smooth, fast, and straight runs.


  • Less Surface Contact per Rotation - Our regular super stock wheels have a linear contact between the wheel bore and the axle per revolution of ~.289 inches. Due to the smaller bore size, these needle wheels have a linear contact of 0.126 inches, a 56% reduction in surface contact per revolution. Over the course of a 32 foot track (actual distance traveled is about 27), this results in a reduction of over 44 inches of linear contact!


  • Fast Starts - Very light weight for the fastest starts possible.


  • Minimal Friction from Car Body - Pre-beveled hubs minimize contact with the axle head and car body.


  • Well-balanced - Machined from Delrin for uniform density throughout.


  • Computer Designed - To provide the maximum mechanical advantage over axle friction.

Usage

These wheels are ready to roll - just lube and go. Do not sand the tread surface as this may detract from performance.

To prepare the car body, axle holes must be drilled with the supplied 1/32 inch drill bit. The holes must be drilled accurately, so use an accurate drill press, and drill slowly to minimize flexing of the drill bit.

Figure 1
Outside View


Figure 2
Inside View
Technical Information

Wheel Diameter Tread Contact Width Overall Hub Diameter Wheel Bore ID Wheel Weight Material
1.200" 0.310" 0.150 0.040 1.9 grams Delrin



Copyright © 2009 by Maximum Velocity, Inc.
® Maximum Velocity! is a registered trademark of Maximum Velocity, Inc.
Pinewood Derby is a registered trademark of Boy Scouts of America