Welcome to 702 RC On-Road Club Class Rules

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Vehicle Scale

M-Chassis, 1/10, and 1/8th onroad vehicles only

3 cars to make a class in club racing and 5 to make a class in trophy races.
Batteries: 2S LiPo/LiHv (7.4-7.6v) or 6-cell NiMH stick packs allowed. Voltage Max 8.40v
****Transponders: Any MyLaps RC4 (2 or 3 Wire), AMB or Some older MRTs are allowed
Racing without a Transponder is permitted, but your vehicle will not be tracked.
The Race Director is not responsible to address any technical issues that occur with personal transponders mid-race. Lap counts will not change post-race and rankings will not be revised (unless drivers are disqualified for other technical reasons). Drivers are responsible to ensure proper performance and reliability of transponders, including proper mounting on the chassis clear of interference and within close range of the timing loop in ground.
VEHICLE TECH INSPECTIONS to verify compliance with the below rules will occur at random and occasionally upon request. The 702RC On-Road Club Tech crew will NOT provide advance notice of if/when Tech Inspections will occur; therefore, it is recommended that all drivers fully understand and abide by these class rules. Violations found post-race are grounds for immediate disqualification from the race (and loss of race points in series events)
(*) For classes requiring Blinky ESC mode, the Hobbywing QR10BL120 esc will be permitted but during Tech Inspections the driver must provide verification via Hobbywing Program Card that esc is programmed with no timing added (no boost/turbo added).
All Rules could not be publish on this page. More details to the rules can be found here: https://www.roarracing.com/downloads/ROAR_

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Rookie Class Young Kids and First-timers

ROOKIE KIDS ALWAYS RACE FREE!!!
ROOKIE ADULTS race free on first race.
Kids and Adults can continue to race ROOKIE Class until they have competitive lap times.
Any 1/12 - 1/10 on-road chassis
21.5T brushless motor or slower is highly recommended
IF A FASTER THAN 21.5 MOTOR IS USED, ESC SETTINGS NEED TO BE ADJUSTED TO CONTROL SPEED. PLEASE SEE AN OFFICIAL FOR ADJUSTMENTS.
Rookie racers are limited to race ONLY the Rookie class.
Non-Rookie (those that have run other classes) racers are not permitted to run in Rookie Class

Colorful remote control race car with signatures on windshield.

Sedan Open Modified (Recommended for Experts)

Open 1/10 TC chassis, body, motor and rubber tires (no foam tires)and wheels -ESC timing allowed
Due to the high speeds of these cars, we reserve this class for the expert drivers and those with a good amount of racing experience with a mod car.

Sedan (17.5)

Open Rubber Tires and wheels (no foam tires)
17.5t ROAR Spec Motors
Weight Min 1320 grams
Blinky ESC (ESC boost/turbo locked out)*
Bodies must resemble 2 or 4 door cars that have raced in a full-scale Touring Car series.
No stickers may be used on top of body to meet height requirements, but may be place on the roof where no measurements are taking place.
The rear of the body may not be cut higher than 55mm above the measuring surface with the chassis resting on 20mm blocks.
No windows may be cut out.
Wing rules:
Only one wing is allowed, fixed to the same place as the wing on the full-size vehicle.
The wing must be fastened to the rear deck of the body, not directly to any part of the chassis of the vehicle.
The rear edge of the wing or side dams may not extend beyond the rear of the body more than 10 mm.
No part of the wing may extend above the roofline of the body..

A lineup of detailed remote-controlled race cars on a gravel track.

LMH (13.5)

Open Rubber Tires (no foam tires) must be mounted to spoke wheels
13.5t ROAR Spec Motors
Weight Total Weight w/ Body Min 1320 gram
Body must strongly resemble production based vehicle that has actually raced in the full scale LMH class. Only bodies on the ROAR-approved LMH list are allowed. Only wings provided with the body by the manufacturer may be used; no modifications (additions or subtractions) to the stock
Only wings provided with the body by the manufacturer may be used; no modifications (additions or subtractions) to the stock wing are allowed except that tape may be used to repair a damaged or torn wing. A full rear bumper is required.
No lightweight bodies allowed. No more than 5 grams can be added to the body, after paint and decals are applied, to meet minimum weight specification for this class. 1.12.2.4
Top of the wing must be level with or lower than the top of the roof. 1.12.2.5
Tire fender wells must remain fully covered and may not be cut out or vented in any way. 1.12.2.6
Front splitter must be trimmed along the manufacturer’s cut lines and the splitter may not be enlarged or reduced compared to the manufacturer’s stock dimensions.

Tamiya Super GT

Super Scale GT and Touring Car

Must use Tamiya tub style chassis examples; 4WD or FWD/FF (TT01, TT02XXX, TA01, TA02, TA03XXX, FF01, FF02, FF03)
NO TA07, 08 -Any hop-up is permitted so long as you retain the factory tub chassis.
Open FDR -25.5T ROAR spec motor or Hobbywing Justock 21.5FT/Reedy 21.5FT/MOTIV USGT 21.5FT/Surpass 21.5FT
Blinky ESC (ESC boost/turbo locked out) *
Open slick or treaded rubber tires, spoked wheels (dish wheel prohibited)
Open brand. 190mm “Realistic” production Touring Car and GT Bodies only. (NO Aero Touring Car bodies or high downforce, made for USGT bodies. NO TAMIYA RAIKIRI)
NO LEXAN wings will be allowed. Must use scale style, Tamiya kit supplied wings. There are some exceptions so please message us if there’s doubts on wing eligibility.
Drivers and Liveries/ is highly encouraged.
702RC On-Road Club provided driver numbers are required. (Provided)

FRONT WHEEL DRIVE (FWD)

-Any 1/10 2WD/FWD chassis, 4-wheel independent suspension

-Hobbywing 17.5t JUSTOCK esc/motor fixed timing combo

-2S LiPo/LiHV Battery

-4.5 FDR minimum

-No minimum weight

-Body must be a FWD vehicle

-RIDE 24mm Treaded FWD Spec Tires Preglued "New USGT Tires" on spoke/mesh wheels Part# 34133

Euro-Semi Truck

Must be built using kit provided parts per included instruction manual
NO MODIFICATIONS to the stock chassis or suspension permitted
Tamiya Part#53619 oil shocks are allowed. No other suspension modifications or upgrades are allowed.
Must use stock (kit included) treaded Euro Truck tires (gluing of sidewalls permitted)
Must use complete Tamiya Euro Truck body
Must use factory included brushed motor
Aftermarket replacement pinions are allowed, but must be Mod .6 pitch 19t
Aftermarket servo horns/savers are allowed
Must use factory included Tamiya or Hobbywing 1060 brushed ESC in blinky mode
Only Tamiya plug, T-Plug (Deans) or XT-60 plug allowed for ESC-battery connection
2S LiPo/LiHV batteries are allowed without chassis modification (must be rounded stick pack)

RXGT

Tires: RIDE RXGT Belted Slick
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
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 in 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 51584
Raybrig 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
Subaru BRZ R&D Sport Part#: KLR-48736

Formula 1 (25.5)

Any 1/10 2wd/Rwd chassis
Any 1/10 Formula 1 body
25.5t ROAR spec motor
2S LiPo/LiHV Battery Blinky ESC (ESC boost/turbo locked out)
Rubber Tires, F1 Scale (no foam tires)
Must have driver helmet installed on body

USGT/VTA

USGT and VTA classes have been removed from the ROAR rules. These classes may still be offered at ROAR-sanctioned events but will be considered Exhibition classes not National Championship classes. If offered, these classes will generally follow the rules established by the organizations that created the classes.
USGT RIDE or Gravity brand Spec Tires and Inserts
USGT 21.5t ROAR Spec Motors - “Realistic” Coupe and GT Bodies (NOT Aero Touring Car bodies)
VTA 25.5t ROAR Spec Motors
Blinky ESC (ESC boost/turbo locked out)*

Mini 2WD

2WD 1/10th scale M-CHASSIS vehicles (brands such as TAMIYA, 3RACING, etc.) minimum wheelbase: 210mm - maximum wheelbase: 239mm

1275gr Minimum Weight -ROAR Spec 21.5t motors
Open Gear Ratios -Open Mini Rubber Tires
“Realistic” Coupe and GT Bodies (NOT Aero Touring Car bodies)
Blinky ESC (ESC boost/turbo locked out)*

Nitro

Nitro Sedan 1/10 Scale (.12 Engine)

200mm 4WD Nitro Touring Car
Maximum .12 / 2.11cc engine
Maximum 2-speed transmission
Minimum weight: 1,650g without fuel
Fuel tank: Maximum 75cc, including fuel lines and filters
Body: 1/10 scale 2- or 4-door Touring Car style
Body minimum weight: 90g, including wing, paint and stickers
Clear windows required
Maximum body width: 205mm
Maximum tire width: 31mm
One wing and one spoiler permitted
Wing must not extend above the roofline
Maximum rear wing overhang: 10mm
Rear body cutout: Maximum 50mm above ground when measured with a 10mm spacer under the chassis
Electronic gyroscopes are not allowed

GT8 (.21 or 3.5cc Engine)

Chassis and mechanical rules

Chassis: Must have a minimum 5-degree kick-up and a minimum 30mm length; no carbon fiber chassis allowed.
Drive shafts: Must be steel; lightweight materials like aluminum or titanium are prohibited.
Brakes: Maximum of two brake discs on the center driveshaft only; mechanical brakes are standard, and brakes on outboard axles are not allowed.
Differentials: Only gear differentials are permitted. Adjustment is only allowed through the use of silicone oil. No one-way or spool differentials are permitted. Front and rear gear ratios must be identical. The rear differential must be "finger proof," meaning it is partly covered.
Wheel nuts: Must be 17mm hex with no quick-change systems.
Bumper: Must be made of flexible foam, with rounded edges, and a minimum size of 200 x 20mm.

Motor rules

Type: .21 or 3.5cc engines are allowed.
Carburetor: Maximum carburetor diameter of 7mm.
Ports: A maximum of five inlet ports are allowed. Engines must be able to run for a minimum of 7 minutes on a 150cc tank.
Exhaust: The exhaust system must be IFMAR-approved.
Other: The use of an INS box is mandatory.

Body rules

Design: Bodies must be commercially available models of GT1, GT2, Super GT, DTM, or V8 cars, and supercar bodies are allowed.
Details: Bodies must have visible windows, headlights, and grill details.
Aerodynamics: Internal body supports and stiffeners are not allowed, with some exceptions for wheel arches and the boot lid.
Material: Must be made of Lexan with a minimum thickness of 1mm.
Dimensions: Must be within the IFMAR GBS dimensions.
Numbering: Cars must be clearly numbered.

Tire rules

Rubber: Tires must be made of rubber, with foam tires prohibited.
Compound: A single brand of rubber tire is controlled for all IFMAR events, and a specific hardness is required for longevity.

1/8 NITRO ON-ROAD

TECHNICAL RULES

Any 1/8 IC Track Chassis
Maximum Engine Size: 3.5cc (.21)
Fuel Tank: 125cc Maximum
Minimum Weight: 2,350g
Wheelbase: 270–330mm
Maximum Overall Width: 267mm
Maximum Overall Height: 180mm
IFMAR-Approved 1/8 On-Road Body
Foam and/or Rubber Tires Allowed
Brakes & Clutch Required
Homologated 3-Chamber Muffler Required

1/10 IC (Nitro) 235mm