Derby Dust ProStock Speed Wheels with Coned Hub for Pine Wood Car Derby
Brand: Derby Dust
<strong>Benefits</strong> <ul> <li>CNC machined Round and smooth Pine Wood Car Derby wheels roll faster than standard wheels.</li> <li>Using wheels from the same mold numbers ensures that the inner bore diameter and other wheel measurements will be similar which will help you attain maximum speed.</li> </ul><br><br> <strong>Usage</strong> ProStock Matched Speed Wheels by Derby Dust can be used without any additional preparation.   However we highly suggest to polish the inner wheel bore prior to racing.  Don't forget to add your favorite Dry Lube before race day! <br><br><b>Important Note</b> The lathing operation removes a small part of the outer tread surface. The bead (serrated edge) is intact. The tread reduction is barely visible to the eye, but is measurable with inspection gauge or a measuring caliper. <br><br>  <strong>AS Always.....  Check YOUR RULES!!!!! We can't stress this enough.</strong>   <br><br>Wheel Diameter: 1.174 ± 0.001 (Raw Wheels: 1.182 to 1.185)<br> Wheel Bore ID: 0.0960 minimum <br>Wheel Weight: About 2.5 grams per wheel (Raw Wheels: 2.7 grams/wheel)
Precision machined with a CNC (computerized) lathe. The wheel tread is cnc lathed to achieve perfectly round wheel. Custom Chuck, not turned on a mandrel. This ensures a flat tread surface.
Mold match- Wheels are sorted by mold number
Inner bores are reamed with .0960" reamer. Bored perfectly round and smooth.
Outer hub faces are coned to minimize contact with the axle head
Factory edge left on the wheel. Will be factory wheel width.