I'm struggling to understand how these are legal.
From the street stock pro rules ...
Wheels
BSA, Maximum Velocity, Awana, Pinecar
a. May be CnCed, lathed, polished and/or sanded to true the edge of tread, surface and circumference
b. The tread / contact surface must remain flat and parallel to the bore as humanly possible
c. No Angling, Reshaping, Canting, Round Crowning, Tapering, H-ing, V-ing, Dishing, the outside of the wheels and/or tread surface
d. Lettering must remain visible on the inside and outside of the wheel.
e. Wheel covers may be used only if entire wheel is visible
f. 7.50mm Minimum Tread Width
g. Wheels must weigh at least 2 grams and a wheel can be removed after the race to be weighed to confirm weight.
h. The wheels can be trued to get to the 2 gram weight but they are not to be cut down intentionally under the weight limit and use foreign material to bring it back to weight.
I'm guessing the wheel isn't a BSA wheel so there was no lettering to begin with? Edit - yep, just saw this was a Pinecar wheel that doesn't have any lettering.
But I don't get how the wheel well weights don't constitute a wheel cover that makes it impossible to see the inside of the wheel.