Complaint
| Item | value |
| Place of Origin | zhejiang China |
| Brand Name | OTMAR |
| Model Number | OTM-F21 |
| Gears | 7 speed |
| Range per Power | 31 - 60 km |
| Frame Material | Aluminum Alloy |
| Wheel Size | 20" |
| Max Speed | 30-55Km/h |
| Voltage | 36V/48V/52V |
| Power Supply | Lithium Battery |
| Braking System | Disc Brake |
| Torque | 90-100 Nm |
| Charging Time | >3 hours |
| Motor position | Rear Motor optional dual motor |
| Battery Position | down carrier battery optional dual battery |
| Battery Capacity | 15AH /17.5AH/20AH |
| Tire Width | 26*4.0/4.5/4.8 |
