Kempton Speedway rules
13.5 Sprint (Winged & Non-Winged) Rules
v1Class Rules13.5 SprintEffective Jul 28, 2026· Updated 3 months ago
Summary of recent changes
Current class specification.
Spec sheet
Governing
- Governing body
- ROAR
- Notes
- Gearbox trans
Motor & ESC
- Motor type
- Spec brushless
- Motor turn
- 13.5T
- Spec motor
- Any ROAR-approved 13.5
- ESC
- Blinky / zero-timing
- Blinky mode
- zero_blinky
Battery & power
- Battery chemistry
- LiPo
- Cells
- 2S
- Hard case
- Required
Tires
- Spec tire
- JConcepts Sprinter, AKA Arry, or GFRP Quasi
Weight & body
- Body
- 7x7 or 6x6 wing (no wing for non-winged)
1.Motor & ESC
13.5 ROAR-approved motor. ESC in blinky.
2.Battery
Any ROAR-approved 7.4V hard-case LiPo.
3.Body
7x7 or 6x6 wing (no wing for non-winged).
4.Transmission
Gearbox trans.
5.Tires
Buggy rule: JConcepts Sprinter, AKA Arry, or GFRP Quasi.
Version history
v1Published.
Jul 28, 2026