OFF-ROAD Classes and Class Rules
All off road classes must use chassis and shock protectors at all times.Wheel studs must not extend past the wheel.​
Off-Road Break Out
​(Updated 2/3/25)
The Break Out class is for any 1/10 scale Off Road vehicle. Aimed towards an entry-level class to minimize the rules to get new drivers on the track without a big investment. The BIGGEST rule for this class is you can't go faster than a 15 second lap time, If you turn a faster lap then 15.0 seconds that lap does not count.
​Chassis
1. Any 2wd or 4wd 1/10th (or smaller) electric off-road competition vehicle or 1/10th RTR vehicle with RTR electronics.
Body. Chassis and Shock Protectors are REQUIRED.
1. Any body style is allowed.
Tires
1. Rubber slicks, foams, Carpet Pin or treaded tires are legal as long as they are readily available.
Electronics
1. Any Brushed or brushless motor or the original RTR power system for your specific vehicle under 2500KV.
2. Battery: 6-cell NiMH batteries, or 2-cell hard case Li-Poly batteries / 8.40v max
3. Radio: OPEN
4. Have fun, this class is more about car control, hitting your marks and making, clean consistent laps, not so much on car set-up and expensive electronics.
5. Don't "Break Out", Don't shoot the messenger and the computer decides the race.
2WD NOVICE 1/10 SCALE
​(Updated 2/3/25)
The Rookie class is for entry-level drivers that are new to RC racing. The general rules for this class are:
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Chassis
1. Any 2WD 1/10th electric off-road competition vehicle or 1/10th RTR vehicle with RTR electronics.
Body
1. Any body style is allowed.
Tires
1. Rubber slicks, foams, Carpet Pin or treaded tires are legal as long as they are readily available.
Electronics
1. Any ROAR Approved 21.5T brushless motor or the original RTR power system for your specific vehicle under 2300KV.
2. Battery: 6-cell NiMH batteries, or 2-cell hard case Li-Poly batteries / 8.40v max
ROAR Rules
2WD 17.5 Blinky Buggy
https://www.roarracing.com/downloads/ROAR_Rule_Book.pdf
1 1/10 SCALE ELECTRIC OFF-ROAD BUGGY (IFMAR CLASSES)
Dimensional specifications:
Item Limit Specification: Wheelbase Max 292 mm / Min 229 mm / Length Max 457.2 mm / Width Max 250 mm / Height Max 203.2 mm
Weight 2WD class: Min 1474 gr
Wheels: Either 2.2’ nominal or 61mm nominal wheels may be used. See drawing below for dimensions.
Tires: Diameter Max 90 mm / Width Max 44.45 mm Rubber Carpet Tires Only
Rear Wing: Chord Max 76.2 mm / Side dam Length Max 100 mm / Height Max 50 mm / Width Max 177 mm
Front Wing: Chord Max 63.5 mm / Side dam Length Max 69.85 mm / Height Max 19.05 mm / Width Max 127 mm
Motor: Any Current ROAR Legal 17.5 - 540 Size Only
ESC: Blinky Mode Only
Battery: LiPo only / Size Max 2s / Voltage Max 8.40 v
Transmission Type: Only Single Speed
Suspension Type: Only Independent
Body Style: Buggy or other off-road style body that resembles an actual off- road racing non-truck type vehicle.
ROAR Rules
13.5 4WD BUGGY
https://www.roarracing.com/downloads/ROAR_Rule_Book.pdf
1 1/10 SCALE ELECTRIC OFF-ROAD BUGGY (IFMAR CLASSES)
Dimensional specifications:
Item Limit Specification: Wheelbase Max 292 mm / Min 229 mm / Length Max 457.2 mm / Width Max 250 mm / Height Max 203.2 mm
Weight 4WD class: Min 1588 gr
Wheels: Either 2.2’ nominal or 61mm nominal wheels may be used.
Tires: Diameter Max 90 mm / Width Max 44.45 mm Rubber Carpet Tires only
Rear Wing: Chord Max 76.2 mm / Side dam Length Max 100 mm / Height Max 50 mm / Width Max 177 mm
Front Wing: Chord Max 63.5 mm / Side dam Length Max 69.85 mm / Height Max 19.05 mm / Width Max 127 mm
Motor: Any ROAR Legal 13.5 Motor - 540 Size Only
ESC: Blinky Mode Only
Battery: LiPo only / Size Max 2s / Voltage Max 8.40 v
Transmission Type: Only Single Speed
Suspension Type: Only Independent
Body Style: Buggy or other off-road style body that resembles an actual off- road racing non-truck type vehicle.
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ROAR Rules
2WD MOD BUGGY
https://www.roarracing.com/downloads/ROAR_Rule_Book.pdf
1 1/10 SCALE ELECTRIC OFF-ROAD BUGGY (IFMAR CLASSES)
Dimensional specifications:
Item Limit Specification: Wheelbase Max 292 mm / Min 229 mm / Length Max 457.2 mm / Width Max 250 mm / Height Max 203.2 mm
Weight 2WD class: Min 1500 gr
Wheels: Either 2.2’ nominal or 61mm nominal wheels may be used. See drawing for dimensions.
Tires: Diameter Max 90 mm / Width Max 44.45 mm Rubber Carpet Tires Only
Rear Wing: Chord Max 76.2 mm / Side dam Length Max 100 mm / Height Max 50 mm / Width Max 177 mm
Front Wing: Chord Max 63.5 mm / Side dam Length Max 69.85 mm / Height Max 19.05 mm / Width Max 127 mm
Motor OPEN Only 540 Size
ESC: OPEN
Battery: LiPo only / Size Max 2s / Voltage Max 8.40 v
Transmission Type: Only Single Speed
Suspension Type: Only Independent
Body Style: Buggy or other off-road style body that resembles an actual off- road racing non-truck type vehicle.
ROAR Rules
OPEN MOD 4wd BUGGY
https://www.roarracing.com/downloads/ROAR_Rule_Book.pdf
1 1/10 SCALE ELECTRIC OFF-ROAD BUGGY (IFMAR CLASSES)
Dimensional specifications:
Item Limit Specification: Wheelbase Max 292 mm / Min 229 mm / Length Max 457.2 mm / Width Max 250 mm / Height Max 203.2 mm
Weight 4WD class: Min 1613 gr
Wheels: Either 2.2’ nominal or 61mm nominal wheels may be used. See drawing for dimensions.
Tires: Diameter Max 90 mm / Width Max 44.45 mm Rubber Carpet Tires only
Rear Wing: Chord Max 76.2 mm / Side dam Length Max 100 mm / Height Max 50 mm / Width Max 177 mm
Front Wing: Chord Max 63.5 mm / Side dam Length Max 69.85 mm / Height Max 19.05 mm / Width Max 127 mm
Motor OPEN Only 540 Size
ESC: OPEN
Battery: LiPo only / Size Max 2s / Voltage Max 8.40 v
Transmission Type: Only Single Speed
Suspension Type: Only Independent
Body Style: Buggy or other off-road style body that resembles an actual off- road racing non-truck type vehicle.
ROAR Rules
2WD Stadium Truck Class Rules (1/10th Scale)
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Chassis: Any 1/10th scale 2-wheel drive.
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Weight: Minimum weight of 1700g (2WD)
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Motor: 13.5 ROAR approved 540-size brushless motor.
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ESC: ROAR-approved non-timing ("Blinky") mode only.
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Battery: 2-cell (2S) hard case LiPo. 8.40v max
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Tires: Must be designed for the stadium truck class (no short course tires).
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Body: Any 2WD or 4WD stadium truck-specific body.
Key 2025/2026 Updates:
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Motors: Both old and new (post-9-1-25) ROAR-approved motors are allowed during a transition period.
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Electronics: 40mm cooling fans are allowed, and ESC timing changes must be made via an external device, not the transmitter.
1/18 Scale BRUSHED MINI B / MINI T
​(Updated 2/1/2023)
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This class is intended for brushed mini drivers that want a higher level of competition than the beginner level but still have budget racing in mind. These can race on the Oval, Off-Road or On-Road courses.
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This class is intended for the 1/16 -1/18 scale (Mini's) like the Losi Mini T/B and Jrx-T Latrax Prerunner vehicles but allows aftermarket parts and more experimentation. With the exception of the stock brushed motor this class is open and offers another class for drivers that like to race multiple classes. You MUST have a transponder for your laps to be counted You MAY also need a "Y" adapter to power the transponder (see home page for transponder options) HERE
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Buggy's must resemble the buggy and Trucks must resemble the truck.
**Buggy class: buggy (longer) chassis, body, wing and buggy tires
**Truck class: truck (shorter) chassis, body, Stock (kit) wing and truck tires
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Latrax Prerunner Battery and ESC Rule: Lipo 2c 2200mah Max, 8.44 Volts max and MUST be run in training mode. Directions here: https://www.youtube.com/watch?v=BbuESg6r8FM
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With our track size and the open gearing/battery in this class there is no reason to tamper with the stock brushed motor
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Motors are subject to be inspected and may by sealed with tamper proof tape
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May use an aftermarket body intended by the manufacturer for use on a Losi Mini T
May use tires intended by the manufacturer for used on a Losi Mini T/B and they must be to size and scale to the stock tires ( If there are tires that are found to cause damage to the track they will be banned ) Foam tires Mini Blocks / 20% 3d printed parts okay / Must use the stock Traxxas/ LOSI Radio in the Brushed class.
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Let's have fun with this class
1/18 Scale BRUSHLESS MINI B / MINI T
​(Updated 2/1/2023)
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Open Mini Class: This is the top MINI buggy and truck class
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Based on the Losi Mini B Pro roller and stock Mini T this class offers a test of skill and setup for accomplished drivers
Brushed and brushless motors allowed that are intended for use in a 1/16 or 1/18 scale surface vehicles.
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Buggy's must resemble the buggy and Trucks must resemble the truck.
**Buggy class: buggy (longer) chassis, body, wing and buggy tires
**Truck class: truck (shorter) chassis, body, Stock (kit) wing and truck tires
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May use tires intended by the manufacturer for used on a Losi Mini B and they must be to size and scale to the stock tires ( If there are tires that are found to cause damage to the track they will be banned ).
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Battery Voltage 8.40v max
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Mini Block or Carpet Pin tires are OKAY / 40% 3d printed parts okay / Use your own radio
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Must maintain a Mini appearance as the manufacture intended.