This class is intended to provide a level, competitive environment using readily available 17.5-turn brushless motors and 2WD buggies. It encourages close racing based on driving ability and setup skill rather than outright speed.
2. Vehicle Eligibility
Vehicles must be 1/10 scale, 2-wheel drive electric off-road buggies.
Drivetrain must be single motor, single speed.
Car must visually resemble a 1/10 off-road buggy — no truck or short-course conversions.
Cars may be inspected or weighed at any time during the event.
3. Motor Regulations
Only 17.5-turn (17.5T) sensored brushless motors permitted.
Motor should appear on the current BRCA Approved Motor List. If it does not then you can still run however if you are buying a new motor for this class we would recommend picking one from the list to future proof your racing.
No internal modifications (rotor, stator, or sensor board changes) beyond manufacturer specification.
Any end-bell timing adjustment must be visible and within motor approval range.
4. ESC Regulations
ESC should be BRCA approved and configured in Zero-Timing / “Blinky” mode.
Boost, Turbo, Dynamic Timing, or any electronic advance features are strictly prohibited.
The LED or display must clearly indicate “Blinky” status when inspected.
Use of unapproved firmware or modified ESC software is not permitted.
5. Battery Regulations
Only 2-cell (2S) LiPo or 2-cell Li-HV (7.6 V nominal) batteries permitted.
Batteries must be hard-cased.
Maximum charge voltage: 8.40 V total (4.20 V per cell).
Maximum charging rate: 10 A or 2 × battery capacity (whichever is lower).
Batteries must be charged in a LiPo-safe bag or container designed for this purpose.
Pre-warming, heating, or externally raising battery temperature above ambient (25 °C) is prohibited.
Charging at over-rated amperage is not allowed.
Race organisers may carry out temperature checks or spot-voltage inspections prior to heats or finals.
6. Weight & Dimensions
Specification
Requirement
Minimum Weight
1,474 g (race-ready, including transponder and body)
Maximum Width
250 mm (as per BRCA 1/10th rulebook)
Wheelbase
Within manufacturer spec for model
Ride Height
No limits
7. Tyres, Wheels & Body
Tyres: Any commercially available 1/10th off-road rubber tyre may be used unless a control tyre is specified.
Additives: are strictly prohibited.
Wheels: Must match 1/10th 2WD buggy size (e.g., 2.2” or 61 mm).
Body: Buggy-style shell covering all major components. No truck or short-course bodies permitted.
8. Transponder & Timing
Racers must ensure transponders are securely fitted and functional, it is the racers responsibility to ensure their transponder is operational.
9. Technical & Conduct Regulations
Cars may be checked at any time for compliance (weight, voltage, firmware, temperature).
Drivers must behave in a sportsmanlike manner and marshal as required.
Race Director’s decision on legality or conduct is final.
Repeated technical infringements may result in disqualification or suspension.
10. Rule Hierarchy & Supplementary Regulations
Primary Reference: BRCA 1/10th Electric Off-Road Handbook (2026).
Secondary Reference: ROAR Electric Off-Road Section — Stock/Spec Class rules.
Any rule not covered here reverts to the BRCA handbook guidance.
