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GT12 Nastruck 17.5 (Oval) · RC LINK

The Thunderdome rules

GT12 Nastruck 17.5 (Oval)

v1

Class RulesGT12 NastruckEffective Dec 21, 2025· Updated 1 month ago

Summary of recent changes

Official ThunderDome rulebook (rev 2025-12-21). Discipline: Oval.

Spec sheet

Governing

Governing body: ROAR
Notes: 172mm max width; 3mm min ride height

Motor & ESC

Motor type: Spec brushless
Motor turn: 17.5T
Spec motor: Any ROAR-approved 17.5
ESC: Blinky / zero-timing
Blinky mode: zero_blinky

Battery & power

Battery chemistry: LiPo
Cells: 1S
Max voltage: 4.20V
Hard case: Required

Tires

Spec tire: Any rubber 1/12 scale
Tire additive

1.Chassis Spec

Any 1/12th on-road specific chassis.

2.Weight Spec

Minimum 750g 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 1 cell Lipo hard cased. MAX temp 90F at tech table. 4.20 MAX VOLTAGE.

5.Tire and Wheel Spec

Any rubber 12th scale tire. Sidewall glueing allowed.

Spec sauce only

Weight & body

Min weight: 750 g
Body: SuperRad SR-20 Super TRK12

Chassis & Suspension

Chassis: Any 1/12 on-road chassis

6.Motor Spec

Any ROAR approved 17.5.

7.Body Spec

SuperRad SR-20 Super TRK12 1/12th scale oval truck body.

8.Ride Height Spec

3mm minimum.

9.Width Spec

172mm max width.

10.Race Spec

2-4 minute heats / 60-75 lap mains.

11.Tire Sauce

SXT Black ONLY.