ProUltralite BSA Speed Wheels

$41.95$46.95

Official Cub Scout/BSA wheels which have been precision machined with True Track Tread and then reduced in weight to 1 gram for an ultra-fast start. Each order includes four wheels with a trued tread surface. In addition, the recessed step on the outer hub is removed and coned, the bore is reamed, and the inside edge is trued. These wheels can be ran without any additional prep work.

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Description

Now, the ultimate wheel for your BSA race!

Our Pro Ultra Lite Pinewood Derby Speed Wheels are official BSA wheels which are sorted by mold number, and then precision machined to tight tolerances with a HAAS CNC (computerized) lathe using proprietary fixtures and tooling. The precision of this machining cannot be duplicated on hobby lathes.

To provide you with an awesome set of wheels, we perform the following operations:

  • Wheel bores are reamed perfectly round and smooth.
  • Outer hub faces are coned 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.

Benefits

  • 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.

Usage

The Pro Ultra Lite Speed Wheels are used without any additional preparation. Optionally polish the bore with Bore Polish, then lubricate and race!

Important Note

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.

Comparison Chart and Photos of Matched Speed Wheel Types

 

ModelTrued TreadConed Outer HubTrimmed EdgeReamed BoreWeight Reduced
4090/4091YesNoNoNoNo
4080/4081YesYesYesYesNo
4070/4071YesYesYesYesYes
4060/4061YesYesYesYesYes

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)

Additional information

Weight0.5 oz