High Road R/C Raceway rules
Losi NASCAR Box Stock (1/12) Rules
v1Class RulesNASCAREffective Jul 28, 2026· Updated 3 months ago
Summary of recent changes
Current class specification.
Spec sheet
Governing
- Notes
- Spektrum battery SPMX142S30H2. Stock pinion (ARA311205)/spur (ARA311196). Exotek CVD allowed. No mixing treads.
Motor & ESC
- Motor type
- Stock / sealed
- ESC
- Stock
Battery & power
- Battery chemistry
- LiPo
- Cells
- 2S
Tires
- Spec tire
- Losi Goodyear Eagle slick Medium/Soft or Proline Goodyear Eagle dirt
Weight & body
- Body
- NASCAR Next Gen (Gen 7) Losi: Camaro, Mustang, or Camry
Chassis & Suspension
- Chassis
- Box stock, all parts in stock locations
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