The HHH GTX 250 EFI Sport Motorcycle is a full-size manual street bike designed for adult and youth riders who want fuel-injected performance, sport styling, and stable highway riding. Powered by a 250cc Zongshen oil-cooled single-cylinder engine with a 6-speed manual transmission, the GTX 250 EFI delivers responsive acceleration, stronger road control, and reliable daily riding performance.
Built with oversized front and rear disc brakes, wider 17-inch tires, custom alloy rims, and EFI fuel injection, this sport motorcycle is designed for commuting, city riding, and highway-capable performance.
Key Features
- 250cc Zongshen oil-cooled engine
- EFI electronic fuel injection system
- 6-speed manual transmission
- Electronic start system
- Front and rear disc brakes
- 17-inch alloy rims
- Sport motorcycle body styling
- Oil-bath multi-plate clutch
- Street-legal motorcycle platform
- Highway-capable performance
250cc EFI Engine and 6-Speed Manual Transmission
The GTX 250 EFI uses a Zongshen ZS165FMM-L engine designed for smoother operation and improved fuel delivery. The oil-cooled system helps maintain stable engine temperature during longer rides and highway speeds.
The 6-speed gearbox provides better:
- Gear spacing for highway riding
- Throttle control
- Fuel efficiency at cruising speeds
- Acceleration management
| Engine and Performance | Details |
|---|---|
| Engine Model | ZS165FMM-L |
| Engine Type | Single Cylinder, Oil-Cooled with Balancer |
| Engine Capacity | 250cc |
| Compression Ratio | 9.2:1 |
| Bore × Stroke | 65.5 × 66.2 mm |
| Max Power | 12kW @ 7500 RPM |
| Max Torque | 18Nm @ 5500 RPM |
| Ignition | EFI |
| Starting System | Electronic |
| Transmission | 6-Speed Manual |
| Lubrication | Forced Lubrication |
| Clutch Type | Oil-Bathing Multi-Plate Clutch |
| Max Speed | 75 MPH |
Sport Street Motorcycle Chassis
The full-size chassis gives the GTX 250 EFI a more stable road feel during commuting and highway riding. The longer wheelbase helps improve straight-line stability and rider comfort.
| Vehicle Dimensions | Details |
|---|---|
| Overall Dimensions | 80.7 × 27.9 × 41.7 inches |
| Wheelbase | 56.7 inches |
| Curb Weight | 309 lbs |
| Rated Load | 474 lbs |
Alloy Wheels, Tire Setup, and Braking System
The GTX 250 EFI uses larger 17-inch wheels with wider rear tire sizing for better traction and handling performance.
| Tires and Brakes | Details |
|---|---|
| Front Brake | Disc |
| Rear Brake | Disc |
| Front Rim | 3.0 × 17 |
| Rear Rim | 4.0 × 17 |
| Front Tire | 110/70-17 |
| Rear Tire | 140/70-17 |
The larger wheel setup helps improve:
- Road grip
- Cornering balance
- Highway stability
- Braking response
Street Riding Features
The HHH GTX 250 EFI is designed for:
- Daily commuting
- Sport-style riding
- Highway cruising
- Adult and youth riders transitioning into manual motorcycles
The EFI system improves cold starts, fuel efficiency, and throttle consistency compared to traditional carbureted motorcycles.
Available Colors
- Black
- Blue
- Green
- Red
Assembly, Shipping, and Warranty
The motorcycle ships approximately 70% assembled inside a metal crate.
Important details:
- California approved
- Some assembly required
- 30-day replacement parts warranty only
- Labor, mechanic costs, and returns not covered
- Free shipping included
- Lift gate included
- Residential delivery included
- Shipping insurance included
- Delivery appointment included
- Working phone number required for delivery scheduling
The HHH GTX 250 EFI Sport Motorcycle is a strong choice for riders looking for a full-size EFI street bike with manual 6-speed control, sport styling, larger alloy rims, and highway-capable performance.

