Highest Quality Wheel & Axle Set from One of the Best Professional Wheel/Axle Cutters in the USA.
Ready to Race So You Can Concentrate on Car Alignment.
Just Add Graphite & Take Care of the Wheel Bores.
Machined by SLT in Pennsylvania, USA.
Modified 1.7 gram BSA PWD Wheels and Cant Rears/RR Front Axles
Four Modified Lightened Mold-Matched BSA Wheels
Lightened Wheels
Material has been Removed From the Inside Area of the Wheels at the Outer Tread Area.
Wheel Weight Average: 1.70 gram
Stock Wheel Weight: 2.56 gram
The Removal of Material from the Inner Tread Area Aids in Reducing the Coefficient of Inertia.
By Lowering the Coefficient of Inertia, the Car will be Faster Out of the Starting Gate.
In Addition, the Material Removal Aids in Balancing the Wheels.
Superior Wheel Bore Preparation
Look at the Wheel Bores in the Pictures.
'The Most Important Modification to Attain a Fast Pinewood Derby Car'
First, the Wheel Bores are Rounded.
Next, the Wheel Bores are Polished/Waxed with Perfluorinated Wax.
Choice Mold - Matched Wheels.
Choice Wheels Aid in Car Stability Down the Track.
Assures Consistency & Quality Across all Four Wheels.
Lathed Outer Tread
Reduce Radial Run-out of Wheels.
All Four Wheels will have the Same Diameter.
The Wheel Set Outer Tread Diameter is Between 1.1750 to 1.1785".
Lateral (side-to-side) Runout of Wheels are Very Small.
We Do Not REAM Bores: REAMED Bores = Large Bores = Slow Cars
Domed Outer Wheel Hub:
Outer Hub is Cut to Remove Two-Step Hub. Result: A Superior Contact Area for Axle Head to Rotate Against.
Trued Inside Wheel Hub:
Inside Hub is Cut to True the Inside Edge that Rotates Against the Car.
Lathed (Trued) Inside Edge of Thread
Minimize the Effect of Lateral Runout on the Inside of the Wheel.
Four High Quality Cant Rears, RR Front BSA Axles
First, the Axle Head Crimp Marks are Removed on Lathe.
Afterward, the Axles are Polished on a High-Speed Proxon to attain a Smooth Slippery Surface.
Last, the Axles are Waxed with a Perfluorinated Treatment.
Two-Angled (Canted) Rear Axles: Approx 2.5 degrees
One-Rail Rider Front Axle: Approx 1.5 degrees
One-Straight Front Axle: No Angle
Superior Surface Preparation Works with Graphite or Oil!
Most Axles You can Purchased are Not Cut on a Lathe. These Axles have Tight Dimensions Because of Lathe Cutting. Look at the Axle Heads!
Facts about Murph...
Grew-up Outside Green Bay, WI
Dairy Farmed until I was 27 Years Old
Received my Engineering Degree from UW-Madison, Wisconsin
Certified Lean Six Sigma Master Black Belt Engineer
I have Worked in the Quality Area of Confectionery for Over 25 years.
Schooled in the Area of Tribology: The study of friction and lubrication at surface interfaces.
Former Consultant to a Major PWD Manufacturer.
Former Pro Racer with an Accomplished List of Track Records
PWDR Stock Record Holder
PWDR Hot Rod Record Holder
PWDR Hot Rod Champion
PWDR Stock Champion
PWDR Modified 2nd Place in Championship
Developed the D-1 Pinewood Derby Oil that is Still being Sold Under Different Names by the Vendors.
I have been Cutting PWD Wheels & Axles for Over 13 years.
Why buy from SLT?
I I want to ensure that you are happy with your purchase. Sometimes, SLT misses something and can make mistakes on occasion! SLT's goal is a 5-Star sale to you, my customer! If you feel that SLT has fallen short, feel free to contact Me and we will get it straightened-out. :-)