Iron City Micro/Mini Off-Road Rules

Iron City RC Micro / Mini Off-Road Rules



Micro B/T


  • Stock Losi Chassis ONLY

  • 2s Lipo Battery ONLY

  • Brushed, No Brushless Systems Allowed

  • Upgraded Brushed Motors Allowed (ex 45T ECO Power Motor)

  • Gearing Changes Allowed

  • STOCK RADIO ONLY

  • Wheels/Tire Upgrades Allowed MUST Be Meant for The Cars

  • SXT REGULAR OR LITE ONLY

  • CHASSIS PROTECTOR REQUIRED



Monster Minis (Granite Grom, Gorgon Grom, Quake Grom)


  • Stock Battery 2s (1400mah Spektrum) or Gens Ace 1700mah / 2300mah Allowed)

  • MUST USE STOCK RADIO 

  • MUST USE STOCK ESC/RECEIVER

  • NO Additional Upgrades Allowed 

  • Stock Tires Or Proline Dreadnaught Tires ONLY

  • SXT REGULAR OR LITE ONLY

  • CHASSIS PROTECTOR REQUIRED


Additional Upgrades (MUST BE ARRMA)

  • Shocks

  • V2 Diffreientials 

  • Steel Outdrives

  • Upgraded Servo



Mojave Grom Intermediate 


  • Stock Battery 2s (1400mah Spektrum) or Gens Ace 1700mah / 2300mah Allowed)

  • Stock Chassis ONLY

  • MUST USE STOCK RADIO 

  • MUST USE STOCK ESC/RECEIVER

  • NO Additional Upgrades Allowed 

  • 1/14th Scale Tires ONLY

  • SXT REGULAR OR LITE ONLY

  • CHASSIS PROTECTOR REQUIRED


Additional Upgrades (MUST BE ARRMA)

  • Shocks

  • V2 Diffreientials 

  • Steel Outdrives

  • Upgraded Servo



Mojave Grom Expert


  • Stock Battery 2s (1400mah Spektrum) or Gens Ace 1700mah / 2300mah Allowed)

  • Stock Chassis ONLY

  • STOCK RADIO ONLY

  • 1/14th Scale Tires ONLY

  • Stock MOTOR ONLY

  • SXT REGULAR OR LITE ONLY

  • CHASSIS PROTECTOR REQUIRED


Additional Upgrades (MUST BE MEANT FOR THE CAR)

  • Shocks

  • V2 Diffreientials 

  • Steel Outdrives

  • Upgraded Servo

  • Sway Bars

  • Arms




Typhon Grom


  • Stock Battery 2s (1400mah Spektrum) or Gens Ace 1700mah / 2300mah Allowed)

  • Stock Chassis ONLY

  • MUST USE STOCK RADIO 

  • MUST USE STOCK ESC/RECEIVER

  • NO Additional Upgrades Allowed 

  • SXT REGULAR OR LITE ONLY

  • CHASSIS PROTECTOR REQUIRED

  • 1/14th Scale Tires ONLY


Additional Upgrades (MUST BE ARRMA)

  • Shocks

  • V2 Diffreientials 

  • Steel Outdrives

  • Upgraded Servo



Reflex 14B


  • Stock Chassis ONLY

  • Any 2s Battery

  • MUST BE SLICK Tires (ex. JACO)

  • Upgraded Radio Allowed

  • Upgraded Parts Allowed (Except Chassis)

  • NO Cutting or Changing The Chassis In Anyway

  • Servo Upgrade Allowed

  • Stock Brushless Reedy Motor or Hobbywing Quicrun 2435 Motors ONLY

  • ESC MUST be Hobbywing Quicrun 10bl60

  • Shock Tower Protectors REQUIRED

  • CHASSIS PROTECTOR REQUIRED

  • SXT REGULAR OR LITE ONLY



Mini T/B


  • Stock Chassis ONLY

  • 2S Battery ONLY

  • Upgraded Radio Allowed

  • Upgraded Tires Allowed (Must Be Meant For The Car)

  • Losi / TLR Upgrades/Parts Allowed

  • Shock Tower Protectors REQUIRED

  • SXT REGULAR OR LITE ONLY

  • CHASSIS PROTECTOR REQUIRED





Vintage RC10 

🏁 Vintage RC10 Racing Class Rules
1. Eligibility & Chassis
Eligible Vehicles:
Original Team Associated RC10 Gold Pan and early Team cars
RC10 re-release kits are allowed
Chassis Requirements:
Aluminum pan chassis ONLY
❌ Graphite chassis NOT allowed
❌ No mid-motor conversions
2. Suspension & Drivetrain
Original suspension design required
RPM or Andy’s aftermarket arms allowed
Original aluminum or fiberglass shock towers
Oil-filled shocks (maximum 13mm diameter)
Transmissions allowed:
5-gear
6-gear
Early Stealth transmission
3. Electronics
Motor
27-turn brushed motor ONLY (stock/silver can style)
❌ Brushless motors NOT allowed
ESC (Speed Control)
Must run in “Blinky Mode” (zero timing)
❌ No boost or turbo timing allowed
Mechanical speed controls ARE allowed
Approved / Popular ESC Options:
Modern Blinky ESCs (Most Common):
Hobbywing: Justock (G2/G3), Xerun 60A-SD V2.1, Xerun 120A-SD V2.1
Reedy: 510R, 610R
Muchmore Racing: Fleta Pro V2, Fleta Euro V2, Fleta Pro V3
ORCA: OE1
Team Powers: Radon
Tekin: Spec or RS models
Period-Correct ESCs (80s–90s Style):
Novak-1 (NESC-1) – most common vintage choice
Tekin Mospower Controller
Delta Autodrive 2
Demon 2DH (UK)
Budget-Friendly Options:
Hobbywing 10BL120
Hobbywing 1060 (Brushed)
4. Battery
6-cell NiMH or 2S LiPo (hardcase only)
Must fit within the original battery tray area
Minor modifications allowed for fitment
5. Tires & Wheels
2.2” wheels
2.2" Jconcepts Fuzz Bite tires
6. Body & Wing
Period-correct buggy body required
Original-style rear wing required
7. Servo & Radio Equipment
Servos and radio gear are open (modern allowed)
Recommended Servo Types:
Low Profile Servos (Best Fit for RC10):
Savox SC-1251MG / SC-1258TG
EcoPower 110S / WP115T
Futaba S9551 / S9452
Period-Correct Servos (80s–90s):
Futaba S5101, S9201, S9301
May require different mounting hardware
Budget Options:
Injora RC Digital Servo (14kg)
8. Allowed Upgrades
Titanium turnbuckles
MIP CVD driveshafts
RPM or Andy’s arms
Re-release RC10 parts
Vintage-style oil shocks
9. Weight (Optional)
Minimum weight may be enforced by race organizers
10. Spirit of the Class
Vehicles must maintain a vintage appearance and driving feel
❌ No modern race conversions or performance advantages
Race Director has final say on legality
🔑 Key Rule Reminder
ESC must always run in true “Blinky Mode” (zero timing)
No turbo, boost, or hidden timing advance
Hobbywing Justock ESC is commonly used as the baseline spec