Displacement
125cc
Class Profile
IAME X30 Senior/Junior
2-stroke high performance class from IAME (Italian American Motor Engineering).
Top Speed
80-85 mph
Power
28-30 HP
Difficulty
Advanced
Budget Startup
$9,895-12,100
Engine Specs
Cylinder Count
1
Stroke Type
2-stroke
Cooling System
Water-cooled
Horsepower
28-30 HP
Torque
Higher than air-cooled engines
Max R P M
Wide RPM range
Fuel System
Tillotson HW-27A diaphragm carburetor
Ignition
Analogic ignition system
Transmission
Centrifugal dry clutch, electric start
Performance Overview
Top Speed
80-85 mph
Acceleration
Excellent - 0-60 in ~2.5 seconds
Laptime Vs X30
Baseline for TaG performance
Difficulty Level
Advanced
Cost Breakdown
New Engine
$3,195-3,500
Used Engine
$2,400-2,900
Maintenance Cost
High
Seasonal Maintenance
$800-1,200
Rebuild Interval
20-30 hours
Rebuild Cost
$600-900
Fuel Consumption
Higher - water-cooled 2-stroke
Budget Setup
Chassis: $4,000-5,000 (used competitive chassis)
Engine: $3,195-3,500 (new X30)
Safety gear: $1,500-2,000 (high-quality 2-stroke gear)
Accessories: $1,200-1,600 (cooling, tools, spares)
Total: $9,895-12,100
Competitive Setup
Chassis: $5,700-6,400 (new TonyKart or BirelART)
Engine: $3,400-3,700 (new X30 with accessories)
Safety gear: $2,000-2,800 (premium racing gear)
Accessories: $1,800-2,500 (data, spare engine, tools)
Total: $12,900-15,400
Recommended Brands
TonyKart 401RR
$5,700-6,200
Most successful X30 chassis globally, extensive development
View brand profileBirelART RY 30-S19
$5,200-5,800
Latest technology, F1 connections, world championship proven
View brand profileKosmic Mercury
$4,995-5,712
OTK family reliability, consistent performance, good value
View brand profileWhere To Race
Sanctioning Bodies
- • SKUSA
- • WKA
- • IAME Global
- • FIA
Popular Series
- • SKUSA Pro Tour X30 Senior/Junior
- • IAME International Final
- • WKA Manufacturer's Cup TaG classes
- • World championships
- • European championships
Track Availability
Excellent - premier TaG class globally
Competition Level
Advanced to professional
Field Sizes
Large competitive fields
Pros
- • Premier TaG racing class globally
- • Excellent power-to-weight ratio
- • Wide RPM range for versatile driving
- • Electric start convenience
- • Balancer shaft for smoothness
- • Path to world championship racing
- • Strong resale value
- • Extensive setup knowledge available
Cons
- • High purchase and maintenance costs
- • Frequent rebuilds required
- • Water cooling complexity
- • Requires significant racing experience
- • Expensive spare parts
- • High competition level can be intimidating