Competition Directory & Scrutineering

RC entry rules & track inspection protocols

Verify your vehicle classification, check weight and motor tolerances, and review the mandatory 5-point safety inspection before entering the challenge track.

Vehicle Classification Matrix

All vehicles run within one of three verified technical classes.

Pre-heat digital scale calibration active
Factory SpecCLASS 01
Stock Class
Factory out-of-the-box chassis with locked gearing and unmodified original electronics.
Max SizeMax 460mm L × 250mm W
Min WeightMin 1,350g
Technical Checklist
OEM factory chassis tub (no carbon swaps)
Capped sealed brushed or 21.5T brushless motor
Fixed manufacturer pinion and spur gearing
Factory ESC with non-timing blinky mode
Strict 2S 7.4V hardcase LiPo / 6-cell NiMH limit
Store-Bought Hop-UpsCLASS 02
Modified Upgrades
Production chassis with bolt-on aftermarket upgrades, upgraded motors, and tuned suspensions.
Max SizeMax 485mm L × 260mm W
Min WeightMin 1,420g
Technical Checklist
Commercial aftermarket chassis & alloy arms
Up to 13.5T sensored brushless motor
Open gearing ratio with verified gear mesh
Adjustable oil-filled shocks and sway bars
Standard 2S/3S LiPo with hardcase protection
Custom FabricationCLASS 03
Open Custom & Scratch
Handmade, 3D-printed, or CNC machined experimental builds designed from scratch.
Max SizeMax 520mm L × 280mm W
Min WeightMin 1,500g
Technical Checklist
Custom 3D-printed, aluminum, or composite chassis
Open brushless motor & programmable ESC
Mandatory remote electronic fail-safe cutoff
Reinforced front bumper & covered spur gears
Dual battery strap tie-downs with fireproof lining
Pit Lane Verification

Host Scrutineering & Shakedown Run

Every vehicle must pass the mandatory 5-point physical bench check before stepping onto the starting grid. Once stamped, you receive your heat transponder and a controlled 2-lap practice window.

01

Radio fail-safe cutoff test

Transmitter power is turned off mid-throttle to confirm wheels brake or instantly return to neutral.

02

Chassis ground clearance gauge

Minimum 12mm belly clearance checked on standard inspection block to prevent track surface gouging.

03

Transponder mount verification

Secure mounting confirmed within 15cm of front shock tower for accurate heat timing loop pickup.

04

Battery hold-down security

Firm physical pull test on hardcase battery trays; zero lateral or vertical battery pack play permitted.

05

Wheel overhang & bumper check

Soft front and rear bumper perimeter must extend past all suspension pins and direct wheel contact points.

Controlled 2-Lap Practice Shakedown

Official transponder timing pickup and frequency isolation test.

Mandatory
Pit Bench Guidance
Common Inspection Fixes
Quick pit adjustments to resolve common scrutineering hold-ups.

You cannot enter the timed heats until the fail-safe is rebound. The host inspection bench has binding plugs and receiver manuals to help you reset the zero-throttle fail-safe position in under five minutes.

Printable Host Inspection Sheet

Download the official 1-page PDF checklist used at the pit bench.

Suggest Track Rule
Funny Clob · RC Division

Join the RC Challenge Circuit

Whether you built it from scratch or modified a kit, our challenges test your engineering and driving skills on custom-built obstacle courses.

Host Inspection

Every vehicle undergoes a safety and performance check by our host before entering the challenge arena.

Fast Review Cycle

We review all submissions within 48 hours to ensure your car is ready for the next scheduled race day.

Community Builds

Share your custom modifications and build logs with the club to help others improve their own chassis.

Questions about the challenges?

Reach out to our host team for technical advice or to suggest new obstacle locations.

Host Inspection Ready

RC Vehicle Entry

Submit your custom RC car details for host testing. Provide build info, modifications, and track preferences to join the challenge.

Your vehicle data is kept private for club use only.