The slot car chassis jig was patterned after 1:1 racing chassis building fixtures and allowed the scale scratch builder to create a slot racing chassis where the entire elements lined up straight and true. Yes- you learn that right; this one fixture is designed to permit straight and true building of all of the chassis types which are used in Parma?s “National Championship Series” of races. Is that this the surprise within the chassis? The “plate” of the NCS fixture is a precision floor permitting for all chassis components to be restored to perfect relative alignment. The new mold design also yields an outer surface finish that is way “smoother” than any previous Super Tire. While essentially the most distinguished feature of the brand new tire is the rounded sidewall, considerable time and effort was also spent on smaller details such because the transition from the rounded sidewall to the tire?s contact patch.