Acceleration (0-100 km/h): 8.1 sec.
Topspeed (mph): 71
Acceleration (0-60 mph): 8.1 sec.
Cylinders: 1
Displacement: 124 ccm (0.1 l)
Engine Power: 10 hp (7 kw)
Gears: Manual, 5-speed
Weight: 122kg (269 lbs)
Weight/Power ratio: 12.2 kg/hp
Power/Displacement ratio: 80.65 hp/l
Metric performance data, FYM 125 Custom compared with similar motorcycles:
| FYM 125 Custom | Geely JL 150-9 Grand Puma | Sachs MadAss 125 | Yamaha YBR 125 | |
| Topspeed (km/h): | 115 | 92 | 90 | 115 |
| Acceleration (0-100 km/h): | 8.1 | |||
| Power: | 10 hp (7 kw) | 12 hp (9 kw) | 9 hp (7 kw) | 12 hp (9 kw) |
| Weight (kg): | 122 | 115 | 85 | 106 |
English performance data, FYM 125 Custom compared with similar motorcycles:
| FYM 125 Custom | Geely JL 150-9 Grand Puma | Sachs MadAss 125 | Yamaha YBR 125 | |
| Topspeed (mph): | 71 | 57 | 56 | 71 |
| Acceleration (0-60 mph): | 8.1 | |||
| Power: | 10 hp (7 kw) | 12 hp (9 kw) | 9 hp (7 kw) | 12 hp (9 kw) |
| Weight (lbs): | 269 | 254 | 187 | 234 |
