| Engine | Yamaha MT-125 | KTM 125 Duke |
|---|---|---|
| Displacement | 124 cc | 125 cc |
| Max power | 15 hp (@9 000 RPM) | 15 hp (@9 500 RPM) |
| Max torque | 8 lb ft (@8 000 RPM) | 8 lb ft (@8 000 RPM) |
| Redline | 10 000 RPM | 11 000 RPM |
| Idling speed | 1 200 RPM | 1 450 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | SOHC Single | DOHC Single |
| Compression | 11.20:1 | 11.50:1 |
| Oil capacity | 1.14 quart | 1.42 quart |
| Oil type | 10W40 | |
| Spark plug type | BOSCH VR 5 NE, BOSCH Super RS VR 5 NEW | |
| Cooling | Liquid | Liquid |
| Valves | 4 | 4 |
| Bore | 52.0 mm | 58.0 mm |
| Stroke | 58.6 mm | 47.2 mm |
| Weight to power | 20.58 lbs/hp | |
| Power to weight | 121 hp/2500lbs | |
| Battery type | 12V 5.5Ah | FTZ-7 |
| Gearbox | Yamaha MT-125 | KTM 125 Duke |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | X-Ring 5/8 x 1/4" | |
| Gears count | 6 | 6 |
| Primary ratio | 3.042 | 3.273 |
| Final drive | 3.42 | 3.214 |
| 1. gear | 2.833 (24 mph) | 2.834 (27 mph) |
| 2. gear | 1.875 (37 mph) | 2.067 (36 mph) |
| 3. gear | 1.364 (51 mph) | 1.555 (48 mph) |
| 4. gear | 1.143 (60 mph) | 1.238 (60 mph) |
| 5. gear | 0.957 (72 mph) | 1.045 (71 mph) |
| 6. gear | 0.84 (82 mph) | 0.917 (82 mph) |
| Chasis | Yamaha MT-125 | KTM 125 Duke |
|---|---|---|
| Frame type | Steel deltabox | Steel trellis frame |
| Front susp. | KYB 41mm USD, 5.12 in travel | USD 43mm, 5.91 in travel |
| Rear susp. | Swingarm monoshock, 4.49 in travel | Monoshock, 5.91 in travel |