Official MSM Spec Racing Rules

Spec racing is designed for all racers to have an equal opportunity to win from an equipment perspective. It is intended to create a cheaper way to get into RC racing without affecting the level of competition. These rules are designed so drivers that are "racing on a budget" can have an opportunity to compete with seasoned experts.

Spec Slash 

    • Brushed 2wd Traxxas Slashes ONLY
    • Approved electronics
      • Traxxas XL5 ESC (must keep a traxxas connector)
        • 3018
      • Traxxas Titan 12t Motor
        • 3785
      • Traxxas TQ or TQi transmitter (Any Model)
      • Traxxas TQ or TQi receivers 
        • 6519 
        • 6533
      • Traxxas Servo Part Numbers 
        • 2056
        • 2075
        • 2075R
        • 2075X
      • Metal servo gears permitted (2072X)
    • Traxxas durability upgrades permitted
      • Must be Traxxas brand parts
      • First 4 part numbers must match stock part number. 
        • For example, part number 2555 (stock rear arms) can be upgraded to 2555G (Green HD Arms)
      • Aluminum shock caps permitted (part# 3767)
    • Must use Traxxas Slash 2wd wheels and tires
      • S1 compounds are permitted * 
      • Any Traxxas Slash 2wd tread pattern permitted
    • Must use Traxxas Slash Body (No aftermarket bodies)
      • No body venting
    • Shock oil changes permitted *
    • Shock limiter permitted *
    • Stock servo saver/horn ONLY
    • 2S Lipo or 7 cell NIMH NO LIHV
    • 16t/23t pinions only (stock/optional both included in kits)
    • 90t/86t spurs only (stock/optional both included in kits)
    • NO TSM ALLOWED

*Only in Spec 1 and Spec 2 classes


Spec 4-tec Brushed

  • Brushed Traxxas 4-tecs ONLY
  • Approved electronics
    • Traxxas XL5 ESC (must keep a traxxas connector)
      • 3018*
    • Traxxas Titan 12t Motor
      • 3785
    • Traxxas TQ or TQi transmitter (Any Model)
    • Traxxas TQ or TQi receivers 
      • 6519 
      • 6533
    • Traxxas Servo Part Numbers 
      • 2056
      • 2075
      • 2075R
      • 2075X
    • Metal servo gears permitted (2072X)
  • Approved Wheels and Tires
    • 8373
    • 8374
    • 8375*
    • 9370
    • 9371
    • 9372
    • 9373
    • 9474
    • 9375
  • Traxxas durability upgrades permitted
    • Must be Traxxas brand parts
    • First 4 part numbers must match stock part number. 
      • For example, part number 2555 (stock rear arms) can be upgraded to 2555G (Green HD Arms)
    • Aluminum shock caps permitted (part# 3767*)
  • Must use Traxxas Brand Body (No aftermarket bodies)
    • No body venting
  • Shock oil changes permitted 
  • Shock limiter permitted 
  • Stock servo saver/horn ONLY
  • 2S Lipo or 7 cell NIMH NO LIHV
  • NO TSM ALLOWED

Open 4-tec Brushless

  • Brushless Traxxas 4-tecs Only
  • Must run Traxxas VXL Brushless systems
  • Approved Electronics
    • Traxxas VXL Brushless System
      • 3355* ESC
      • 3351* Motor
      • 3350* Combo
    • Traxxas Servo Part Numbers 
      • 2056
      • 2075
      • 2075R
      • 2075X
      • 2250
      • 2255
    • Metal servo gears permitted (2072X)
    • Any Transmitter/Receiver Permitted
  • Any Wheels/Tires Combo Permitted
  • Any Body permitted
  • Shock oil changes permitted 
  • Shock limiter permitted 
  • Stock servo saver/horn ONLY
  • 2S Lipo or 7 cell NIMH NO LIHV
  • NO TSM ALLOWED