Group F Wing Cars
- Chassis: any group F, OMB, or box- stock chassis may be used. No dropped guide thongs or wire chassis are allowed. Only modification allowed is to remove built-in weights. No weight restriction on the car. No ride height limit, chassis cannot touch track
- Motor: ProSlot PS4002FK sealed motor or Proslot Speedball only. Can bushing may be soldered. Springs and brushes may be changed. Motors must retain the factory seal. You may apply fingernail polish or epoxy to protect the seal.
- Tires: You may narrow tire width to suit track conditions. No drilled or waffle hubs allowed.
- Gears: Any ratio or pitch may be used. No spur gears hanging below the chassis
- Axles and oilites: Bushings or bearings are allowed
