MAXIMUM VELOCITY! ®
Pro Ultra Lite Pinewood Derby Speed Wheels
1 Gram Wheels by DerbyWorx
BSA Speed Axles
Now, the ultimate wheel for your BSA race!
Our Pro Ultra Lite Pinewood Derby Speed Wheels are official BSA wheels which are precision machined by DerbyWorx with a CNC (computerized) lathe
to within 0.0005 inches for the ultimate in accuracy and thus, maximum performance
. To provide you with an awesome set of wheels, DerbyWorx performs the following operations:
Wheel bores are reamed perfectly round and smooth.
Outer hub faces are squared to minimize contact with the axle head.
The wheel tread is lathed with True Track to achieve a perfectly round wheel, a flat tread surface, and a slight radius on the edges to replicate the look of a stock BSA wheel.
The weight of the wheel is reduced by removing all excess plastic from the underside of the wheel tread and the inside wheel face.
Round and smooth wheels roll faster than standard wheels.
The weight reduction provides a faster start, and improves the balance of the wheel for a smoother ride.
The Pro Ultra Lite Speed Wheels are used without any additional preparation. Optionally polish the bore with Bore Polish, then lubricate and race!
The lathing operation removes a small amount of tread surface. The serrated edge is intact. The tread reduction is barely visible to the eye, but is measurable with a caliper. If your race restricts the use of lathed wheels
, consider using our specialty tools and supplies to prepare a set of raw wheels.
Technical Information for 4060/4061 Wheels
- Wheel Diameter: 1.170 ± 0.001 (Raw Wheels: 1.182 to 1.185)
- Wheel Bore ID: 0.098
- Wheel Weight: 1.0 grams +/- 0.1 per wheel (Raw Wheels: 2.7 grams/wheel)
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