1/10 2WD OFF-ROAD TRUCK SPECS

All trucks must be 2wd.
Minimum track width - continuous 10 feet
Maximum truck length - 18"
Maximum truck width - 13"
Truck wheel base - Minimum - 9" Maximum - 11.5"
Minimum Truck weight - 2WD - 60 ounces = 3lbs. 12oz.
Truck wheel diameter - Minimum-mounting bead – 2.175in. Maximum mounting bead 2.25" Maximum overall – 2.46in.
Wheel mounting - Must be securely mounted at all times.
Maximum Truck wheel width – 2in.
Truck tire width - Minimum - 2" Maximum – 2.125in.
Minimum Truck tire diameter – 3.6in.
Wheel cut out - Use body cut lines
Engine - .12 . This year a .15 RTR or 4 stroke .26 is legal. This is an effort to help grow this class due to the drop in interest in 1/10 Trucks.
Motor - Brushed or Brushless - Mod or stock.
Electric Trucks conforming to the rules of this class will be allowed to participate. That means they must meet the minimum weight. Electric trucks must make pit stops during mains. The appropriate number to be determined at each event which will be equal to the number of stops for the largest majority of nitro powered truck. This addition is to help increase interest in the truck class.
Fuel - Nitro mixtures only. Maximum allowed 75 milliliters/cc for the tank, filter(s) and fuel line from tank to carb.
Power - NIMH, NICD, Lipo maximum voltage of 7.4v
Transmission - 1 speed only - viscous or slipper drivers are allowed
Rear suspension - Independent
Main events - 5 to 60 Minutes
Bodies - Off-road Truck
Tires - Rubber only
All vehicles must meet the 85db rule for noise.
62: Exhaust pipes are also required on every car. The maximum sound level is 85 decibels, measured at a ninety degree angle to the side of the car from a distance of 30 feet, 3 feet above the ground, with the car at maximum throttle and at all speeds

1/8 FUEL OFF-ROAD SPECS (Buggy)

Minimum track width - continuous 10 feet
Maximum Buggy length – 28.74in. (730mm)
Maximum Buggy width – 12.20in. (310mm)
Maximum Buggy height – 9.84in. (250mm)
Buggy wheel base - Minimum – 10.8in. (270mm) Maximum – 13.2in. (330mm)
Minimum weight - 112.88 ounces (3.2 kilos) 7lbs .05 oz.
Wheel diameter - Minimum – 3.2in. (81.28) Maximum – 3.54in. (90.0mm)
Wheel mounting - Must be securely mounted at all times.
Maximum wheel width – 1.98in.(50.45mm)
Tire diameter - Minimum - 4.3in.(109.22mm) Maximum - 4.7in.(119.38mm)
Maximum tire width – 2.03in.(51.59mm)
Engine - .21 only
Fuel - Maximum 125 milliliters/cc includes tank, filter(s) and fuel line from tank to carb.
Transmission - 1 speed only
Rear suspension - Independent
Main events - 5 to 60 Minutes
Bodies - Buggy or other off-road style body that resembles an actual off-road racing vehicle
Tires - Rubber only
Notes - Maximum height is measured with suspension fully compressed.

ARENA TRUCK CLASS

Scale -1/8
Description:
Any Monster Truck that does not 100% meet the MONSTER TRUCK specifications while still meeting the below guidelines will run in the Arena Truck Class.

Minimum track width - - - - - - - - - - - - - Continuous 10 feet (same as 8th scales)
Wheel base - - - - - - - - - - - - - - - - - - - Minimum 12 inches
Wheelbase -------------------------------------- Maximum 16 inches
Vehicle width maximum ---------- outside tire to outside tire ----------- 18 inches
Transmission/diff - - - - - - - - - - - - - - - - - - Single speed direct drive (1/8 buggy) style driveline only.
Engine - - - - - - - - - - - - - - - - - - - - - - .12ci to .28ci
Carb ------------------------------------------------- No size restriction. Carb must mount securely to the motor.
Exhaust ------------------------------------------- Pipes must meet the 85 decibel limit and have no movable parts in them.
Minimum weight - - - - - - - - - - - - - - - - 8lbs. 6 oz. minimum weight
Fuel Tanks - - - - - - - - - - - - - - - - - - - - Single fuel tanks only no more than 150mililitres/cc. This includes fuel line from tank to carb and filter(s).
Bodies - - - - - - - - - - - - - - - - - - - - - - - Truck or SUV (no buggy or car bodies allowed )
Bumpers - - - - - - - - - - - - - - - - - - - - - -Bumpers are optional. If used, must not extend further than 1" past the body on the front and rear.
Rear Spoiler/Wing - - - - - - - - - - - - - - - A spoiler/wing is optional.
Skid Plates - - - - - - - - - - - - - - - - - - - -Skid Plates must not extend further than 1" past the body on the front and rear.
Wheels --------------------------------------------- Must be manufactured for Monster Trucks/Arena Trucks.
Wheel Mounting -------------------------------- Wheel mounting - Must be securely mounted at all times.
Tires - - - - - - - - - - - - - - - - - - - - - - - - -Must be rubber only. No tires created for other vehicle types even if they fit the specifications will be allowed. Cutting or modifying the tread is allowed. Modifying the tire carcass by sectioning or narrowing is prohibited. Due to the varying sizes of wheels available for Monster Trucks it IS legal to trim the mounting bead of a tire produced for the Monster Truck class to make it fit a Monster Truck rim. Example - Bowtie on a REVO wheel. All tire measurements reference the carcass dimensions and does not include the tread depth or width.
Tire diameter- - - - - - - - - - - - - - - - - - - Minimum - 4.55" (mounted)
Tire width - - - - - - - - - - - - - - - - - - - - - Minimum – 2.20"(mounted)
The new LPR wheels and tires are legal.
The Panther LP is referenced for this size and will be the absolute smallest tire legal.

Race lengths- - - - - - - - - - - - - - - - - - - Qualifiers - 5 to 10 minutes, Main events - 15 to 60 min

SLASH SPEC  CLASS

CHASSIS
1. Modifications of any type to the chassis plate, lower braces, receiver box, battery brace and related parts are not allowed.
2. The battery must be placed in the battery tray. The foam battery spacer may be placed behind or in front of the battery when using a 6-cell battery pack, or removed when using a 7-cell battery pack. Cutting or otherwise modifying the spacer is not allowed.
3. The side nerf bars, front and rear bumpers, skidplates and body mounts may not be removed or modified. (THERE MAY BE AN EXTRA SCREW ADDED TO THE REAR BUMPER TO BETTER SECURE IT.)
SUSPENSION
4. Modifications of any type to the suspension arms, shocks, shock towers, hub carriers and related parts are not allowed.
5. The stock shock pistons must be used in their factory positions and may not be modified. The Traxxas Aluminum Shock Caps ( 2667 aluminum shock caps) are legal.
6. When refilled for maintenance, the shocks may be filled with any weight fluid. The shocks must be properly filled with oil.
7. The stock shock springs must be used in their factory positions. Springs may not be shortened or otherwise modified.
8. Spring preload may be adjusted using only the supplied spacers. Additional spacers may not be used.
9. Front toe-in and front and rear camber may be adjusted within the travel range of the factory turnbuckles and rod ends.
DRIVETRAIN
10. Modifications to the gearbox, transmission gears, slipper clutch, driveshafts and bearings are not allowed.
11. Each track must set a pinion rule based on what is best for the individual track. All racers must run the specified gear. Gears must be made available for inspection if requested by other racers or race officials. Spur and pinion gears are allowed to be after market replacements for the Traxxas.
12. The differential may not be locked or modified in any way.
BODY, WHEELS AND TIRES
13. The factory tires and wheels must be used and may not be modified in any way.
14. Softening compounds or other traction aids may not be used.
15. A Traxxas Slash body or aftermarket body specifically sold for the Slash must be used and may not be modified in any way other than the addition of decals or paint. The body must be mounted using the factory body posts. The body must be trimmed using the factory trim lines, and may not be modified in any way other than the addition of decals or paint.
ELECTRONICS
16. The original Traxxas XL-5 speed control and Titan12T motor must be used. In the event of motor or ecs replacement the Traxxas XL-5 and Titan 12T must be used. No other esc or motors will be allowed.
17. Aftermarket transmitters, receivers, and servos may be used.
18. Motor and Esc connectors may be changed or eliminated. (Note this may void any warranties from Traxxas)
19. The motor's label must be intact. Motor modifications of any type are not allowed.
20. Piezoelectric gyroscopes or other stability-enhancing electronic devices are not allowed.
TRANSPONDER
21. The transponder must be mounted beneath the Slash body, either on the body itself or on the chassis plate.
BATTERIES
22.NIMH, NICD 6 or 7 cell packs are allowed.
23.Lipo 2S are allowed and must add weight in the battery box only to equal the 7 cell weight.
REPLACEMENT PARTS
24. Only Traxxas original replacement parts may be used or aftermarket parts specifically noted in these rules.
25. The following Traxxas upgrade parts are legal for Slash racing: 2667 aluminum shock caps.
26. The following aftermarket upgrade parts are legal. RPM gear cover.
The idea for this class is to keep it spec and affordable. In the process of the year we may find other areas where an upgrade part or aftermarket part may be needed to make the trucks more reliable. Because of this additions may be added at any time. Upgrade suggestions must come from the participating tracks and be based on an unusual amount of breakage.