New Class Rules

• Kyosho Fazer Chassis Mk2
• Fazer line body Must be KYO for the Fazer or came with an RTR
• Must use the original gearing 68/32 (any brand pinion) Metal okay
• 2s Lipo Shorty-sport
• Stock ESC and Brushed motor required
• Kyosho Hopups allowed (shocks, universals, shafts and Turnbuckles)
• Any Transmitter and servo
• no shaving or modification of chassis
• adjustable turnbuckles (any brand)
• Spoke wheels required (any tire) 26mm width max

• Must use TT01 or TT02 Chassis (no S or SRX) No C Hubs, No Hinge pins
• Any Tamiya or other Brand TT01 TT02 hop-up allowed  
• No modification to tub chassis or internal gearing
• Hobbywing 21.5 FT Combo
• USGT Gravity / Ride RC Tires and inserts (spoke wheel)
• Tamiya Porsche body 992 GT3 (51705), 911 Carrera (51543) and VIP2008 911 GT3 (51336), GT3 R body
• Optional wing 54457, 22015 and 54729 allowed.
• Open Gearing (any spur/pinion) 
• 1400 g Minimum weight

RULES for RXGT year TWO

Tires:

Preglued RIDE Belted Slick

RIDE spoked wheels

*USGT permissable during shortage

Chassis:

• any 4wd 1/10 scale electric chassis.
• Minimum weight 1420 grams.

Electronics

Motor

• 21.5 fixed timing motor (hobbywing justock

G2.1)

ESC

• Hobbywing Justock esc in blinky mode
• 15,000 RPM limit

Servo/radio

• Any

Battery

• Any 2 cell Lipo/LiHV 8.7 volt max

Wings:

 Plastic kit wings or lexan stock wings.

Tamiya Item# 54729 Rc Racing Wing also Known as molded wing

Tamiya item OP-2015 Racing wing set 3 Carbon pattern or clear

NO TC WINGS ALLOWED

Racing wing set 2 is NOT ALLOWED

RACING WING SET Hop-Up Options No.604 NOT ALLOWED

Lightweight Wing - (Carbon) Tamiya 53470 NOT ALLOWED

Bodies:  

TAMIYA (note: some bodies currently available on kits can be used)

Subaru BRZ R&D part # TAM51575

Toyota Supra part number TAM51678 2020

Tamiya AU TOMs GR Supra Body Tamiya 51678

Ford GT Mk II part # TAM51664

Mercedes -AMG GT3 part# TAM51590

Motul Autech GT-R part# TAM58625

Porsche 911 GT3 R part# TAM47512

2008 Audi R8 LMS part# TAM58749

Motul Autech Nissan Z Part # TAM51731 and 51584Raybrig NSX Concept-GT part# TAM51563 and 47315

Arta Nsx 2005 Item# 24288

Body Set Audi 90 Quattro Racing 51751

Honda NSX 58739

Opel Calibra V6 Cliff Tamiya 51689 and 84236

McLaren Senna Tamiya 51693

Nismo R34 GT-R Tamiya 51246

Toyota Supra Tamiya 51291

Toyota GR 86 Tamiya 51666

1991 Audi V8 Tamiya 51653

Subaru WRX STI NBR Challenge Tamiya 51593

Ford Mustang GT4 Tamiya 51614

Body Set Nissan GT-R - Sumo Power GT Tamiya (51453)

Audi 90 Quattro Racing Tamiya 51751

1997 Mercedes CLK-GTR Body: 47437

Mazda Rx-7 Item# 51270

Mercedes-AMG GT3 EVO

2002 Mercedes-Benz CLK AMG Part#: TAM58722

91' Mercedes-Benz 190 E 2.5-16 EVO II Part#: TAM58752

No lightweight versions, minimum body weight 150 grams. Any added

weight need to be added to roof.

Kyosho

2020 Mercedes AMG Part#: KYO39218B

Acura NSX Part#: KYO39213LW

Kyosho Fazer Audi R8 LMS 2015 Part#: KYO39215LW

1971 Mercedes-Benz 300 SEL 6.3 Part#: KYOFAB713

2002 Subaru Impreza WRC 2002 Part#: KYOFAB612

Killerbody

Killerbody Denso Kobelco Sard RC F Part#: KLR-48767 and KLR-48660

Motul Autech R35 GT-R 2016 NISMO Part#: KLR-48754

Gainer Tanax GT-R R35 Nismo

• Must use TT01 TT02 Chassis (no S or SRX) No C Hubs, No Hinge pins
• Any Tamiya or other Brand TT01 TT02 hop-up allowed  
• No modification to tub chassis or internal gearing
•  Must use Hobbywing Justock
• HWA38020322 21.5 FT Combo
• USGT Gravity / Ride RC Tires and inserts (spoke wheel)
• Tamiya Porsche body 992 GT3 (51705) and 911 Carrera (51543). Optional wing 54457 and 54729 allowed.
• Open Gearing (any spur/pinion) 
• 1400 g Minimum weight

• BEGINNERS ONLY
• OPEN TO ANY 1/12 - 1/10 CHASSIS
• 21.5T AND SLOWER TYPE MOTORS ARE ENCOURAGED
• 7.2-7.6v BATTERIES ONLY
• NO BOOSTED ESC'S
• BLINKY ESC (NO BOOST)

• OPEN RUBBER TIRES UNLESS A SPEC TIRE IS AGREED UPON
• 17.5 ROAR APPROVED MOTORS
• ROAR APPROVED TC BODIES
• ROAR RULES APPLIES
• 2S BATTERY, BLINKY ESC

• OPEN RUBBER TIRES UNLESS A SPEC TIRE IS AGREED UPON
• 21.5 ROAR APPROVED MOTORS
• ROAR APPROVED TC BODIES
• ROAR RULES APPLIES
• 2S BATTERY, BLINKY ESC

• 21.5 ROAR APPROVED MOTORS
• 'SCALE' COUPE AND GT BODIES
• 10mm WING SIZE RULE
• USGT GRAVITY OR RIDE SPEC TIRES AND INSERTS
• 2S BATTERY, BLINKY ESC
• NO LIGHTWEIGHT BODIES (.5MM ETC)

• 25.5 ROAR APPROVED MOTORS
• ANY 1/10 2WD F1 CHASSIS
• 2S BATTERY, BLINKY ESC
• RUBBER F1 TIRES

• HOBBYWING 17.5 FIXED TIMING MOTOR/ESC COMBO
• 'SCALE' FWD BODIES
• USGT GRAVITY OR RIDE SPEC TIRES AND INSERTS
• 2S BATTERY, BLINKY ESC
• NO LIGHTWEIGHT BODIES (.5MM ETC)
• OPEN GEARING
• Min weight 1250g
• NO SWEEP TIRES

• SOME USVTA RULES APPLY
• 25.5 ROAR APPROVED MOTORS
• 2S BATTERY, BLINKY ESC
•  The only tires allowed are PROTOform VTA Rear Tires (31mm) - #10139-00 and PROTOform VTA Front Tires (26mm) - #10140-00, OR Gravity RC G-Spec VTA Tires #GRC146

LOSI NASCAR OVAL/Onroad
VERSION 1 RULES - 1/20/2025

IF THE RULES DO NOT EXPLICITLY SAY THAT YOU CAN DO SOMETHING, IT IS NOT LEGAL

1. This is intended to be a box stock class with minimum changes being made to the car. If you want to exploit rules and try to push things further than allowed, we suggest a different class.
2. 1/12 Losi NASCAR AWD Brushed RTR (#LOS11224**)
3. Chassis Rules
- All parts and components must be stock
- No Losi, Arrma, or aftermarket option parts
- Chassis and suspension must remain unmodified/ No removing any parts
4. Body
- Nastruck okay
- Stock painted Losi bodies or replacements (LOS-1918, LOS-1917, LOS-1938) allowed
- Replacement bodies must be painted or wrapped and custom paint or wraps are encouraged. 

No body scrapping  or shaving of bodies to lighten them.

(No Clear Bodies)
- Bodies must be mounted at stock height
- Can add washers to bumper so splitter doesn't pull away after crash.
- No trimming of body or removal of material
5. Electronics.

Esc: SPMXSE3125RX RTR/ SLT RX / 25A BRUSHED ESC. 

( REVERSE MUST BE DISABLED )

Motor: LOS-1907 28 turn 380 RTR Brushed motor must be used and must remain unmodified.

- All stock electronics must be used. This includes: ESC, servo, radio, motor, and battery

Servo horn can be changed  to Losi Aluminum servo horn.  LOS-1910

- Electronics CANNOT be modified in ANY way (shortening wires, direct solder, etc..)
- Electronics must be mounted in stock positions
6. Tires
- Losi medium and soft compound tires allowed
- CA glue or Electrical tape may be applied to front tire sidewalls to prevent traction rolling
7. Shocks
- Stock shocks only (LOS-1936)
- Stock springs only
- Shock oil may be changed
- Shocks must be mounted in stock positions
8. Differentials
- Must use stock diff (ARA311177V2)
- Oil fill diff is not allowed
- Diff grease can be changed for other greases
- No spools or thick grease to work like a spool
- Diffs cannot be locked
9. Gearing Stock 59/19

10. Weight 930 grams minimum 

11. Motor fan can replace Motor fan with same size fan. Fan must be mounted  In stock location.

12. No Losi Option parts Allowed

13. Can replace bearings. 

14. Also will need Y harness splitter for servo/ transponder.

• Furitek SCORPION 5600KV Brushless Sensored ESC/Motor  

Part#: FTK-FUR-2596

• Open gearing
• Bearings must be steel construction and shielded. No open or ceramic type bearings.
• All 4 tire versions okay
• Reverse must be disabled.
  
• Changing shock and diff oil is permitted, as is adjusting the ride height via the factory shock adjustments.
• Differential must spin freely, ARRMA sealed diff allowed.
  

HAVE FUN.  

• 2WD M CHASSIS
• 1275gr MINIMUM WEIGHT FOR PLATE CHASSIS
• NO MINIMUM WEIGHT FOR PLASTIC CHASSIS
• ROAR 21.5 OR AE SPEC 17.5
• OPEN M CHASSIS RUBBER TIRES
• TAMIYA, 3RACING, ETC BASED 2WD MINI CHASSIS
• 'SCALE' COUPE AND GT BODIES
• NO 1/12 'TC' STYLE BODIES
• 2S BATTERY, BLINKY ESC

• SPEC TAMIYA TCS  RULES ONLY