| Main Performance Features | ||
| SN | Items | Description |
| 1 | Brand-new Dynamic Balancing System |
Adopts front balance shaft structure to balance the first-order inertial force generated by the engine, reduce engine vibration, and improve the smoothness and riding comfort of the whole vehicle. |
| 2 | High-Temperature Resistant Exhaust Valve |
Made of 61Cr21Mn10Mo1V1Nb1N high-temperature resistant material with excellent thermal stability. |
| 3 | Crankcase Thermal Assembly |
Crankcase thermal assembly with pressure pin structure reduces crankshaft axial movement noise and improves overall engine performance. |
| 4 | Noise Reduction Technology |
Triangular lower rocker arm delivers high strength; cast iron upper rocker arm holder helps reduce noise. |
| 5 | High-Quality Piston Rings |
Dual DLC coated piston rings offer excellent wear resistance and long service life, effectively slowing down oil burning. |
| 6 | High-spec Crank Connecting Rod Assembly |
TM reinforced crankshaft bearings with imported needle rollers from Lituolu, perfectly meeting the requirements of large-displacement engines. |
| 7 | Optimized Camshaft Profile |
Boosts engine power and torque. The vehicle shows superior start-off and overtaking acceleration compared with similar models. |
| 8 | Enlarged Shift Drum |
Newly designed shift drum with enlarged outer circle and relatively gentle profile grooves enables smoother gear shifting. |
| 9 | Reliable Engine Gaskets |
The right cover gasket, cylinder block gasket and tensioner gasket are steel gaskets coated with foamed rubber on the surface, featuring high sealing reliability and allowing repeated disassembly and assembly. |
| Main Technical Specifications | ||
| SN | Parameter | Value |
| 1 | Engine Model | 170FMM‑M |
| 2 | Engine Common Name | CGP250‑V2 (With External Balance Shaft) |
| 3 | Engine Type | Single‑cylinder,4‑stroke,air‑cooled,manual clutch,external balance shaft |
| 4 | Displacement | 250 ml |
| 5 | Max. Power | 12 kW /7500 r/min |
| 6 | Max. Torque | 17.6 N·m /600 r/min |
| 7 | Compression Ratio | 9.0:1 |
| 8 | Bore × Stroke | 70 mm ×65 mm |
| 9 | Ignition Method | CDI |
| 10 | Lubrication Mode | Pressure and Splash |
| 11 | Min. Fuel Consumption | ≤354 g/kW·h |
| 12 | Starting Method | Electric / Kick start |
| 13 | Clutch | Manual Wet Multi‑Plate |
| 14 | Gearshift | Constant‑mesh two‑stage transmission,5‑speed |
| 15 | Package Size | 385 ×365 ×500 |
| 16 | Package Weight | |
