Displacement
125cc
Class Profile
SKUSA Stock Honda CR125 Shifter
Shifter kart USA spec class from Honda (modified motorcycle engine).
Top Speed
95-100 mph
Power
35-38 HP
Difficulty
Expert
Budget Startup
$15,550-20,700
Engine Specs
Cylinder Count
1
Stroke Type
2-stroke
Cooling System
Water-cooled
Horsepower
35-38 HP
Torque
Good torque with 6-speed transmission
Max R P M
High RPM motorcycle heritage
Fuel System
PWK or PWM carburetor systems
Ignition
Stock Honda CDI system
Transmission
6-speed Honda CR125 gearbox (1996 preferred)
Performance Overview
Top Speed
95-100 mph
Acceleration
Very fast - true shifter performance
Laptime Vs X30
4-6 seconds faster per minute
Difficulty Level
Expert
Cost Breakdown
New Engine
$5,550-7,000 (complete kit from MRC)
Used Engine
$3,500-5,000
Maintenance Cost
Very high
Seasonal Maintenance
$1,500-2,500
Rebuild Interval
10-20 hours
Rebuild Cost
$1,000-1,800
Fuel Consumption
High - race fuel preferred
Budget Setup
Chassis: $5,000-7,000 (used shifter chassis)
Engine: $5,550-7,000 (Stock Honda package)
Safety gear: $2,500-3,200 (shifter-specific gear)
Accessories: $2,500-3,500 (specialized Honda tools/parts)
Total: $15,550-20,700
Competitive Setup
Chassis: $5,800-6,400 (new/recent shifter chassis)
Engine: $6,500-7,500 (built Stock Honda with spares)
Safety gear: $3,000-3,800 (premium shifter gear)
Accessories: $3,500-4,500 (data, backup engine, pro setup)
Total: $18,800-22,200
Recommended Brands
TonyKart Krypton 401KZ
$6,200-6,800
Excellent Stock Honda performance, proven in SKUSA competition
View brand profileCRG Road Rebel
$5,800-6,400
Strong Stock Honda heritage, good value for shifter racing
View brand profilePraga Invictus Evo
$5,800-6,400
All 32mm tubing shifter specialist, innovative design
View brand profileWhere To Race
Sanctioning Bodies
- • SKUSA
- • Selected WKA events
Popular Series
- • SKUSA Pro Tour Stock Honda
- • SKUSA SuperNationals Stock Honda
- • Regional SKUSA events
- • Selected club racing programs
Track Availability
Limited - primarily SKUSA events
Competition Level
Expert to professional
Field Sizes
Moderate competitive fields
Pros
- • Less expensive than KZ shifter racing
- • Strong SKUSA program support
- • Motorcycle engine heritage and character
- • Good power-to-cost ratio for shifter class
- • Active racing community in USA
- • More accessible than international KZ
- • 6-speed transmission experience
Cons
- • Still very expensive compared to TaG classes
- • Limited primarily to SKUSA events
- • Complex motorcycle engine maintenance
- • Requires significant shifter experience
- • High rebuild frequency
- • Older technology vs modern KZ engines
- • Parts becoming harder to source