NEXT TIME WE RACE THESE
Based on our experience I request we consider these changes in specs:
- We use the aluminum ScaleAuto motor pod (to prevent carrier strut breakage).
- We allow Slot It (PA20-AL) or Slotting-Plus (SP02195) F1 hubs.
My experience with the AllSlot hubs is that the threads in the hub for the grub screw seem to strip easy (I have three pairs of AllSlot wheels where One of the pair has stripped threads). The PA20s have a solid hub so no more need for o-rings and the weirdness matching tire diameters during truing when the tire pushes down into the airhub channel (even when o-rings are present) and marbles itselft to death.
PA20s have a 12mm dia rim, 14.5mm diam nub, 11.5mm wide with a 6mm wide nub/nib. The AllSlots measure the same with a 7mm nib. The NSR 5020? tires have a 7mm nib-slot but seem to fit tight and centered on the PA20s. Maybe some glue or one o-ring could be used if they were to slip.
The SP021950s (aka. SLPL40114512 ) use a 2.5grub. They are spec’ed at 14.5dia-nub at 12mm wide rim. I used these on a custom project and they are durable and good looking wheels.
"... get on your bad motor scooter and ride!"
Sammy with Montrose