F1 (Oval & On-Road)

Class RulesFormula 1Effective Sep 5, 2025· Updated 1 month ago

Summary of recent changes

Official ThunderDome rulebook (rev 2025-09-05). Discipline: Oval & On-Road.

Spec sheet

Governing

Notes: 190mm max width; SXT Black only

Motor & ESC

Motor type: Spec brushless
Motor turn: 25.5T
Spec motor: Any ROAR-approved 25.5
ESC: Blinky / zero-timing
Blinky mode: zero_blinky

Battery & power

Battery chemistry: LiPo
Cells: 2S
Max voltage: 8.40V
Hard case: Required

Tires

Spec tire: Rubber tires made for F1 cars
Tire additive: Spec sauce only

Weight & body

1.Chassis Spec

Any commercially available F1 car kit. Formula 1 cars from year 2008 and newer that are a realistic representation of an original FIA Formula 1 car may be raced in this class.

2.Weight Spec

Minimum 1030g in race-ready trim.

3.ESC

Any ESC that is ROAR approved and running in ROAR approved "Blinky" spec software.

4.Battery Spec

ROAR approved 2 cell Lipo hard cased. MAX temp 90F at tech table. 8.40 MAX VOLTAGE.

5.Tire and Wheel Spec

Rubber tires specifically made for F1 cars. Sidewall glueing allowed.

Version history

v1Published.

Jul 28, 2026

v1Pre-official seed content (archived before load)

Aug 3, 2026

F1 (Oval & On-Road)

Spec sheet

1.Chassis Spec

2.Weight Spec

3.ESC

4.Battery Spec

5.Tire and Wheel Spec

Version history

6.Motor Spec

7.Body Spec

8.Width Spec

9.Race Spec

10.Tire Sauce