1/10 – 1/12 Scale Rules

1/12 Stock

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RACE FORMAT

• 8 Minute Qualifiers and Mains

RIDE HEIGHT

• 3mm Ride Height

TIRES

• Spec Tire – Any commercially available Striped Spec 1/12 tire

CHASSIS

• 1/12 Scale 2wd Pan Car / sold rear axle chassis

BODY

• Can-Am, GTP, WSC body styles only

WEIGHT

• 730 gram minimum weight

BATTERIES

• 1 cell Roar approved batteries
• 4.20 volts maximum

MOTOR

• 17.5 ROAR approved brushless motor

ESC

• ESC ROAR approved and in “blinky” mode only

1/12 Super Stock

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RACE FORMAT

• 8 Minute Qualifiers and Mains

RIDE HEIGHT

• 3mm Ride Height

TIRES

• Tire – Open foam 1/12 scale tires

CHASSIS

• 1/12 Scale 2wd Pan Car / sold rear axle chassis

BODY

• Can-Am, GTP, WSC body styles only

WEIGHT

• 730 gram minimum weight

BATTERIES

• 1 cell Roar approved batteries
• 4.20 volts maximum

MOTOR

• 13.5 ROAR approved brushless motor

ESC

• ESC ROAR approved and in “blinky” mode only

1/12 Modified

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RACE FORMAT

• 8 Minute Qualifiers and Mains

RIDE HEIGHT

• 3mm Ride Height

TIRES

• Tire – Open foam 1/12 scale tires

CHASSIS

• 1/12 Scale 2wd Pan Car / sold rear axle chassis

BODY

• Can-Am, GTP, WSC body styles only

WEIGHT

• 730 gram minimum weight

BATTERIES

• 1 cell Roar approved batteries
• 4.20 volts maximum

MOTOR

• Modified ROAR approved brushless motor

ESC

• ESC ROAR approved – Open ESC

GT12

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 3mm Ride Height

TIRES

• Tire – Any commercially available rubber 1/12 Scale Tire

CHASSIS

• 1/12 Scale 2wd Pan Car / sold rear axle chassis

BODY

• GT and LMH style bodies made for 1/12 Scale chassis, minimum 45g incl. wing
• 45 gram minimum Body Weight

WEIGHT

• 730 gram minimum weight

BATTERIES

• 1 cell Roar approved batteries
• 4.20 volts maximum

MOTOR

• Motiv Spec USGT motor only

ESC

• ESC ROAR approved and in “blinky” mode only

World GT-R

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 5mm Ride Height

TIRES

• Tire – WGT-R rubber tires/rims only

CHASSIS

• 1/10 Scale 2wd Pan Car / sold rear axle chassis

BODY

• GT style bodies approved for WGT-R class only

WEIGHT

• 1025 gram minimum weight

BATTERIES

• 1 cell Roar approved batteries
• 4.20 volts maximum

MOTOR

• 17.5 ROAR approved brushless motor

ESC

• ESC ROAR approved and in “blinky” mode only

Formula 1

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 4mm Ride Height

TIRES

• Tire – Any commercially available F1 Rubber Tire

CHASSIS

• 1/10 Scale 2wd Pan Car / sold rear axle chassis

BODY

• F1 bodies that fit the chassis you’re using

WEIGHT

• 1020 gram minimum weight

BATTERIES

• 2 cell Roar approved batteries
• 8.40 volts maximum

MOTOR

• 25.5 ROAR approved brushless motor

ESC

• ESC ROAR approved and in “blinky” mode only

Touring Super Stock

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 5mm Ride Height

TIRES

• Tire – TC Tire

CHASSIS

• 1/10 Scale 4wd touring car chassis

BODY

• ROAR approved Touring Car bodies only

WEIGHT

• 1300 gram minimum weight

BATTERIES

• 2 cell Roar approved batteries
• 8.40 volts maximum

MOTOR

• 21.5 ROAR approved brushless motor

ESC

• ESC ROAR approved and in “blinky” mode only

Touring Modified

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 5mm Ride Height

TIRES

• Tire – TC Tire

CHASSIS

• 1/10 Scale 4wd touring car chassis

BODY

• ROAR approved Touring Car bodies only

WEIGHT

• 1300 gram minimum weight

BATTERIES

• 2 cell Roar approved batteries
• 8.40 volts maximum

MOTOR

• Modified ROAR approved brushless motor

ESC

• ESC ROAR approved – open ESC

LMH

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 5mm Ride Height

TIRES

• Tire – TC Tire

CHASSIS

• 1/10 Scale 4wd touring car chassis

BODY

• ROAR approved LMH bodies only, 80g minimum

WEIGHT

• 1320 gram minimum weight

BATTERIES

• 2 cell Roar approved batteries
• 8.40 volts maximum

MOTOR

• 25.5 ROAR approved brushless motor

ESC

• ESC ROAR approved and in “blinky” mode only

USGT

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 5mm Ride Height

TIRES

• Tire – Gravity grey belted tires only

CHASSIS

• 1/10 Scale 4wd touring car chassis

BODY

• USGT approved bodies only, 10mm maximum wing height

WEIGHT

• 1350 gram minimum weight

BATTERIES

• 2 cell Roar approved batteries
• 8.40 volts maximum

MOTOR

• Motiv Spec USGT motor only

ESC

• ESC ROAR approved and in “blinky” mode only

NOTE

• *no longer supported by ROAR

USVTA

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 5mm Ride Height

TIRES

• Tire – Protoform OR Gravity RC USVTA tires only

CHASSIS

• 1/10 Scale 4wd touring car chassis

BODY

• USVTA approved bodies only

WEIGHT

• 1400 gram minimum weight

BATTERIES

• 2 cell Roar approved batteries
• 8.40 volts maximum

MOTOR

• Motiv Spec 25.5 motor

ESC

• ESC ROAR approved and in “blinky” mode only

FWD Stock

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RACE FORMAT

• 5 Minute Qualifiers and Mains

RIDE HEIGHT

• 5mm Ride Height

TIRES

• Tire – TC Tire

CHASSIS

• 1/10 Scale Front Wheel Drive chassis

BODY

• FWD bodies only
• 70 gram minimum body weight

WEIGHT

• 1250 gram minimum weight

BATTERIES

• 2 cell Roar approved batteries
• 8.40 volts maximum

MOTOR

• Motiv Spec USGT motor only

ESC

• ESC ROAR approved and in “blinky” mode only

Tamiya TTGT

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RACE FORMAT

• 5 Minute Qualifiers and Mains

CHASSIS

• Stock TT01 / TT01E or base TT02 ( B/D/T/S/R/RR variants NOT permitted)

ESC

• ESC – “Box stock” Tamyia ESC as delivered in the OEM box. (NOTE: Allowable Spec alternative to the OEM Tamyia ESC is Hobby Wing Quickrun 1060)

TIRES

• Tires – Gravity Racing USGT spec belted pre glued tires ( Edge wheel, grey)

SERVO

• No restrictions on servo; any servo saver allowed

BODY

• BODY: see list of approved bodies. Nothing else allowed.

WINGS

• Wings – Molded plastic (no lexan wings) and only what came in the kit – No non-OEM wings may be added.

MOTOR

• Tamyia brushed Silver can 540 Torque Tuned motor only (54358)

BATTERIES

• Hard case 2s lipo battery, 8.40 volts maximum

SHOCKS

• Shocks – Must be Tamiya friction dampers and chrome springs that come in the kit (TT01/TT02). (no oil dampers allowed)

DIFFERENTIALS

• Differentials – any lube or grease may be used provided the differentials are not locked, no spools, no glue-welded diffs – (must function as an open differential)

GEARING

• Tamiya kit spur gear only; pinion can be any manufacturer. TT01 must use (48p/0.6 module) 19t pinion with kit Tamiya 61 spur =8.35:1 FDR; TT02 must use (48p/0.6 module) 22t pinion with kit Tamiya 70t spur = 8.27:1 (this is the closest matching FDR between chassis)

WEIGHT

• 1450 grams minimum

Losi NASCAR

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RACE FORMAT

• 5 Minute Qualifiers and Mains

CHASSIS

• “Box Stock” 1/12 Scale Losi NASCAR

TIRES

• Tire – Losi NASCAR Medium Compound Tire
• Glued tire sidewalls are permitted

MODIFICATIONS

• No Modificatons to the chassis or driveline
• No Upgraded parts, like springs, arms, gears, etc
• Shock oil change is permitted
• Diff oil change is permitted but must still work as open diff
• Motor fan can be changed, but must be the same size and location as original

BODY

• Kit NASCAR bodies only

BATTERIES

• 2 cell 1400mAh “Kit” batteries only
• 8.40 volts maximum

MOTOR

• Kit Brushed motors only

ESC

• Kit ESC’s only