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Battlefield Raceway rules

13.5 Mudboss

v1
Class RulesMudbossEffective Aug 12, 2026· Updated 3 months ago

Summary of recent changes

Initial rules from track.

Spec sheet

Governing
Notes
ROAR approved software only; one 30mm fan allowed; spur 76/83/86/90 only; stock plastic shocks; no adjustable rear arms; no aluminum (except shock caps); no added weight; max battery weight 350g; Salvas rules apply
Motor & ESC
Motor type
Spec brushless
Motor turn
13.5T
Spec motor
Hobbywing 13.5 fixed timing
ESC
Hobbywing Justock
Blinky mode
fixed
Battery & power
Max voltage
8.44V
Hard case
Required
Tires
Spec tire
Open (SCT 19mm/21.5mm offset wheels, stock Traxxas hexes)
Weight & body
Body
Any Mudboss body (Salvas, Mr. Kustoms, Rocksteady, etc.)
Chassis & Suspension
Chassis
Stock Traxxas LCG chassis (any color; no notching/modifying)

1.Electronics

Hobbywing 13.5 fixed timing motor and Justock ESC. ROAR approved software only. One (1) 30mm fan allowed.

2.Servo

Stock servo (part#2075) or any $50 retail servo (NOT dealer price).

3.Battery

Any 5200Mah hard case battery. Must have Deans, XT60, XT90 etc, NO bullet style connector. Max battery voltage 8.44 volts. Max battery weight 350 grams.

4.Chassis

Stock Traxxas LCG Chassis, any color. (NO notching or modifying of the chassis allowed.)

5.Suspension

Shocks must be the factory plastic shocks with NO modifying allowed. Stock white Traxxas springs only (part#5857 front / #5858 rear). Right rear arm flip is allowed. 2wd plastic shocks ONLY. Aluminum shock caps allowed. 3-5 coils can be cut out of springs ONLY. Limiters are allowed. Stock kit pistons only (1 hole, 2 hole, or 3 hole).

6.Transmission

Must be stock, NO slotting or changing to allow bigger spur gear (76, 83, 86, 90 tooth spur gears ONLY).

7.Tires

OPEN TIRE (must be on SCT 19mm and/or 21.5mm offset wheels only). Stock Black or Grey Traxxas wheel hexs ONLY.

8.Body

Any "MUDBOSS" body allowed such as Salvas, Mr. Kustoms, Rocksteady etc. NO aluminum parts or upgrades!! Except shock caps. NO aftermarket or RPM parts allowed. NO brass, lead, tungsten, or any kind of weight is allowed. NO adjustable rear arms.

9.Note

Salvas rules apply to this class as well; any updates per Salvas will be in effect for this class!

Version history

v1Published.
Aug 12, 2026