Chassis

Tamiya M03/M05/M07 (M07 legal Oct 16) series “Front Wheel Drive” chassis only, assembled as per Instruction Manual.

No chassis/power train modifications allowed, with the exception of the differential which may be of any style (eg spool, ball diff, open gear diff, or sealed gear diff, except one way), from any manufacturer. Specifically excluded is the Yeah Racing TAMC-023 Diff, its use is prohibited.

Motor

Tamiya Black Can Sport-Tuned motors (23,000 rpm max) – 53068, or 13T/3000KV Hobbywing OEM/rebranded COMPLETE SYSTEM with max 25 or 35 amp ESC and engraved /etched can. No modifications are permitted to motors.
*NOTE* Motors limited to 3300Kv
No alteration of wiring from ESC to the Motor, these MUST remain as supplied.

ESC

Speed Controllers as per ROAR BRCA list. Speed controllers eligible for Stock classes must provide zero timing advance, along with disabling advanced motor control functions (i.e. Boost, Cheat Mode, Turbo, etc). When the “0 Boost” profile is enabled, it shall be indicated by a blinking LED while the ESC is armed and in neutral position.

Body Shell

Body shells are open, with the following restrictions – No Modern (post 1980) 4 door Touring Sedans and/or 12th scale type Wedge/Can-am Sports bodies.

Tyres

Any commercially available rubber mini-sized tyre, in any combination and/or compound, with any insert.

Batteries

Any 2 cell Hard-cased approved 7.4 Lipo packs as listed on the ROAR or EFRA websites.

Gearing

0, 18 OR 16 Tooth pinions only.

Weight

Minimum 1330 grams ready to run including transponder.

Hop Ups

ESC, bearings and Tamiya Hop-ups only permitted, with the following exceptions – Official Tamiya optional ALLOY components may be replaced with an equivalent aftermarket part.
Protective bumpers are permitted providing they are of essentially foam constructions with no hard mounting points contacting the body shell.
After market rear body mount support/braces are also permitted.

Additional

Cars must be assembled as per instruction manual and no chassis/powertrain modifications allowed. With the exception of the included/optional differential which may be modified to give a locked/spool action. After market differentials/spools are permitted. One-way diffs are specifically prohibited.