KYMCO Top Boy 50 specifications — approved in Switzerland
5 HP
Max power
5 Nm
Max torque
67 km/h
Top speed
170 kg
Curb weight
6KB639
| Power | 4.8 HP (3.5 kW) @ 7’000 rpm |
| Torque | 5 Nm @ 6’500 rpm |
| Top speed | 67 km/h |
| Weight/power ratio | 35.42 kg/HP |
| Displacement | 50 cm³ |
| Fuel | Petrol |
| Engine layout | 2-temp / 1 / monobloc |
| Transmission | s |
| Engine | SF10G |
| Curb weight | 170 kg |
| Gross weight | 255 kg |
| Width | 1’905 mm |
| Height | 1’070 mm |
| Body type | Scooter |
| Doors | central + latéral |
| Tires | AV= 120/90-10 56J: 3.00x10 |
| Tires (option) | AR= 130/90-10 61J: 3.50x10 |
| Manufacturer | KWANG YANG MOTOR CO., LTD, RC KAOHSIUNG, TAIWAN R.O.C. |
| Approval date | 23/04/2004 |
| Type approval no. | 6KB639 |
6KB640
| Power | 4.8 HP (3.5 kW) @ 7’000 rpm |
| Torque | 5 Nm @ 6’500 rpm |
| Top speed | 67 km/h |
| Weight/power ratio | 35.42 kg/HP |
| Displacement | 50 cm³ |
| Fuel | Petrol |
| Engine layout | 2-temp / 1 / monobloc |
| Transmission | s |
| Engine | SF10G |
| Curb weight | 170 kg |
| Gross weight | 255 kg |
| Width | 1’905 mm |
| Height | 1’070 mm |
| Body type | Scooter |
| Doors | central + latéral |
| Tires | AV= 120/70-12 56J: 3.00x12 |
| Tires (option) | AR= 130/70-12 59J: 3.50x12 |
| Manufacturer | KWANG YANG MOTOR CO., LTD, RC KAOHSIUNG, TAIWAN R.O.C. |
| Approval date | 23/04/2004 |
| Type approval no. | 6KB640 |
6KB608
| Power | 4.8 HP (3.5 kW) @ 7’000 rpm |
| Torque | 5 Nm @ 6’500 rpm |
| Top speed | 69 km/h |
| Weight/power ratio | 35.42 kg/HP |
| Displacement | 49 cm³ |
| Fuel | Petrol |
| Engine layout | 2-temp / 1 / monobloc |
| Transmission | s |
| Engine | KY-SF10 |
| Curb weight | 170 kg |
| Gross weight | 255 kg |
| Width | 1’905 mm |
| Height | 1’070 mm |
| Body type | Scooter |
| Doors | central et latéral |
| Tires | AV= 120/90-10 56J, 10x3.00 / AR= 130/90-10 59J, 10x3.50 |
| Tires (option) | AV= 120/70-12 56J, 12x3.00 / AR= 130/70-12 59J, 12x3.50 |
| Manufacturer | KWANG YANG MOTOR CO., LTD, RC KAOHSIUNG, TAIWAN R.O.C. |
| Approval date | 09/09/1998 |
| Type approval no. | 6KB608 |
6KB633
| Power | 4.0 HP (3.0 kW) @ 6’750 rpm |
| Torque | 4 Nm @ 6’500 rpm |
| Top speed | 45 km/h |
| Weight/power ratio | 42.5 kg/HP |
| Displacement | 50 cm³ |
| Fuel | Petrol |
| Engine layout | 2-temp / 1 / monobloc |
| Transmission | s |
| Engine | SF10G |
| Curb weight | 170 kg |
| Gross weight | 255 kg |
| Width | 1’905 mm |
| Height | 1’070 mm |
| Body type | Scooter |
| Doors | central et latéral |
| Tires | AV= 120/90-10 56J: 3.00x10 |
| Tires (option) | AR= 130/90-10 61J: 3.50x10 |
| Manufacturer | KWANG YANG MOTOR CO., LTD, RC KAOHSIUNG, TAIWAN R.O.C. |
| Approval date | 03/12/2003 |
| Type approval no. | 6KB633 |
6KB634
| Power | 4.0 HP (3.0 kW) @ 6’750 rpm |
| Torque | 4 Nm @ 6’500 rpm |
| Top speed | 45 km/h |
| Weight/power ratio | 42.5 kg/HP |
| Displacement | 50 cm³ |
| Fuel | Petrol |
| Engine layout | 2-temp / 1 / monobloc |
| Transmission | s |
| Engine | SF10G |
| Curb weight | 170 kg |
| Gross weight | 255 kg |
| Width | 1’905 mm |
| Height | 1’070 mm |
| Body type | Scooter |
| Doors | central et latéral |
| Tires | AV= 120/70-12 56J: 3.00x12 |
| Tires (option) | AR= 130/70-12 59J: 3.50x12 |
| Manufacturer | KWANG YANG MOTOR CO., LTD, RC KAOHSIUNG, TAIWAN R.O.C. |
| Approval date | 03/12/2003 |
| Type approval no. | 6KB634 |
6KB609
| Power | 1.9 HP (1.4 kW) @ 5’750 rpm |
| Torque | 3 Nm @ 4’000 rpm |
| Top speed | 45 km/h |
| Weight/power ratio | 89.47 kg/HP |
| Displacement | 49 cm³ |
| Fuel | Petrol |
| Engine layout | 2-temp / 1 / monobloc |
| Transmission | s |
| Engine | KY-SF10F |
| Curb weight | 170 kg |
| Gross weight | 255 kg |
| Width | 1’905 mm |
| Height | 1’070 mm |
| Body type | Scooter |
| Doors | central et latéral |
| Tires | AV= 120/70-12 56J, 12x3.00 / AR= 130/70-12 59J, 12x3.50 |
| Tires (option) | AV= 120/90-10 56J, 10x3.00 / AR= 130/90-10 59J, 10x3.50 |
| Manufacturer | KWANG YANG MOTOR CO., LTD, RC KAOHSIUNG, TAIWAN R.O.C. |
| Approval date | 09/09/1998 |
| Type approval no. | 6KB609 |
