2008
Jianshe Knight JS125 4X-F2 - Specifications & Review

Article Complete Info
| Articleid | 115468 |
|---|---|
| Category | Sport |
| Make | Jianshe |
| Model | Knight JS125 4X-F2 |
| Year | 2008 |
Chassis, Suspension, Brakes & Wheels
| Frontbrakes | Single disc |
|---|---|
| Fronttyre | 2.75-18 |
| Rearbrakes | Expanding brake (drum brake) |
| Reartyre | 3.00-18 |
Engine & Transmission
| Borexstroke | 54.0 x 54.0 mm (2.1 x 2.1 inches) |
|---|---|
| Clutch | Wet type,muti plate,hand operation |
| Compression | 10.0:1 |
| Coolingsystem | Air |
| Displacement | 123.00 ccm (7.51 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Gearbox | 5-speed |
| Ignition | CDI |
| Power | 8.18 HP (6.0 kW)) |
| Torque | 8.00 Nm (0.8 kgf-m or 5.9 ft.lbs) @ 5500 RPM |
Other Specifications
| Starter | Electric & kick |
|---|
Physical Measures & Capacities
| Dryweight | 115.0 kg (253.5 pounds) |
|---|---|
| Fuelcapacity | 14.50 litres (3.83 gallons) |
| Groundclearance | 160 mm (6.3 inches) |
| Overallheight | 1,085 mm (42.7 inches) |
| Overalllength | 2,060 mm (81.1 inches) |
| Overallwidth | 740 mm (29.1 inches) |
| Powerweightratio | 0.0711 HP/kg |
| Seatheight | 775 mm (30.5 inches) If adjustable, lowest setting. |
About Jianshe
Country of Origin:
China
Founder:
Jianshe Industries (state-linked; Chongqing)
Best Known For:
High-volume commuters and partnerships (including with Yamaha) for quality uplift
Company History
Jianshe’s footprint spans civilian commuters, utility machines, and defense manufacturing capacity. Its joint ventures—most notably with Yamaha—brought process control, supplier vetting, and documentation practices that raised product consistency and safety. On the street, Jianshe-badged 100–200 cc machines do the invisible work of mobility: delivery service, school runs, and rural trips where bus schedules fail. The company’s export partners tailor suspension, tires, and lighting to local realities, and maintain spares that keep uptime high. Over the last decade Jianshe’s EFI, loom sealing, and braking packages have improved markedly, reflecting regulatory pressure and joint-venture learning. Historically, Jianshe is a case study in industrial evolution: state factories becoming competitive consumer-goods producers through partnership and volume. For riders, the benefit is practical—a new bike that starts reliably and gets cheap parts, the kind of quiet progress that changes daily life.
