Pinewood Derby Speed Wheels - Derby Worx Pro Inertia-Lites scout car kit We don't use the gap

We don't use the gap portion of it

   Car Kit for this body is available here:

Speed Swoop Fast Winning Pinewood Derby Car Kit came directly from one of the published how to books

We loved the density of one putty

and no undercut pocket to remove that weight

Pinewood Derby Speed Wheels - Derby Worx Pro Inertia-Lites scout car kit We don't use the gapFast Pinewood Derby Speed Wheels Derby Worx Pro Inertia Lites Fast Pinewood Derby Speed Wheels that are a lighter than stock BSA wheels are design for decreasing rotational inertia, thus allowing quicker starts and overall times. Derby Worx Pro Inertia Lites can be run as is, or polished with Novus plastic polish to remove micro scratches. This set of Fast Pinewood Derby Speed Wheels usually yield an increase of speed by reducing on average 0. 02