Featuring Engine Model | 50cc AIR | 50cc Water | 125cc GY6 | 125cc GY7 | 150cc GY6 | 150cc GY7 |
Model No. | BN139QMB | BN1PE40MB | BN152QMI | BN152QMI-A | BN157QMJ | BN157QMJ-A |
Name | 4 STROKE 50 | 4 STROKE 50 | GY6 125 | GY7 125 | GY6 150 | GY7 150 |
Style | SINGLE CYLINDER, 4 STROKE | SINGLE CYLINDER, 2 STROKE | SINGLE CYLINDER, 4 STROKE | SINGLE CYLINDER, 4 STROKE | SINGLE CYLINDER, 4 STROKE | SINGLE CYLINDER, 4 STROKE |
Cooling | AIR | WATER | AIR | AIR | AIR | AIR |
Valve Qty | 2 | 2 | 2 | 2 | 2 | |
Displacement(cc) | 49.6 | 49.26 | 124.6 | 124.6 | 149.6 | 149.6 |
Compression Ratio | 10.4:1 | 10:01 | 9.2:1 | 10:01 | 9.5:1 | 10:01 |
Bore Stroke(mm) | 39*41.5 | 40*39.2 | 52.4*57.8 | 52.4*57.8 | 57.4*57.8 | 57.4*57.8 |
Max Power | 2.4kw/8000r/min | 3.6kw/7500r/min | 5.4kw/7500r/min | 6.3kw/7500r/min | 6.3kw/7500r/min | 7.0kw/7500r/min |
Max Torque | 2.8N.m/6500r/min | 4.8N.m/7000r/min | 8.2N.m/6000r/min | 8.8N.m/6000r/min | 8.8N.m/6000r/min | 9.5N.m/6000r/min |
Size(mm) | 620*380*290 | 650*395*230 | 630*400*320 | 630*400*320 | 680*400*320 | 680*400*320 |