Losi NASCAR Box Stock (1/12) Rules

Class RulesStock NASCAREffective Jul 28, 2026· Updated 6 days ago

Summary of recent changes

Current class specification.

1.Chassis

Box stock, all parts in stock locations. No modifying. Exotek front (EXO2319)/rear (EXO2320) CVD allowed. Stock pinion (ARA311205) and spur (ARA311196).

2.Electronics & battery

All electronics stock. Spektrum battery that comes with the car (SPMX142S30H2).

3.Body

NASCAR Next Gen (Gen 7) Losi bodies only: Camaro, Mustang, or Camry.

4.Tires

Losi Goodyear Eagle slick — Medium (LOS1914) or Soft (LOS1937); or Proline Goodyear Eagle dirt (PRO1030310). No mixing treads.

Version history

v1Published.

Jul 28, 2026