| Engine | Yamaha R125 | Yamaha R6 |
|---|---|---|
| Displacement | 124 cc | 599 cc |
| Max power | 15 hp (@10 000 RPM) | 123 hp (@14 500 RPM) |
| Max torque | 11 Nm (@8 000 RPM) | 65 Nm (@10 500 RPM) |
| Redline | 10 000 RPM | 16 000 RPM |
| Idling speed | 1 200 RPM | 1 200 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | SOHC Single | DOHC Inline-4 |
| Compression | 11.20:1 | 13.10:1 |
| Oil capacity | 1.20 litre | 3.40 litre |
| Oil type | 10W40, Yamalube 10W40, Shell Rotella 10W40 | |
| Spark plug type | NGK CR10EK | |
| Cooling | Liquid | Liquid |
| Valves | 4 | 16 |
| Bore | 52.0 mm | 67.0 mm |
| Stroke | 58.6 mm | 42.5 mm |
| Weight to power | 9.47 kg/hp | 1.54 kg/hp |
| Power to weight | 105 hp/Ton | 650 hp/Ton |
| Battery type | 12V 5.5Ah | YTZ10S |
| Gearbox | Yamaha R125 | Yamaha R6 |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | ||
| Gears count | 6 | 6 |
| Primary ratio | 3.042 | 2.073 |
| Final drive | 3.42 | 2.813 |
| 1. gear | 2.833 (39 km/h) | 2.583 (126 km/h) |
| 2. gear | 1.875 (59 km/h) | 2.0 (163 km/h) |
| 3. gear | 1.364 (82 km/h) | 1.667 (195 km/h) |
| 4. gear | 1.143 (97 km/h) | 1.444 (226 km/h) |
| 5. gear | 0.957 (116 km/h) | 1.286 (253 km/h) |
| 6. gear | 0.84 (132 km/h) | 1.15 (283 km/h) |
| Chasis | Yamaha R125 | Yamaha R6 |
|---|---|---|
| Frame type | Steel deltabox | Aluminium Deltabox |
| Front susp. | KYB 41mm USD, 130.00 mm travel | USD, dia 41mm, 115.00 mm travel |
| Rear susp. | Swingarm monoshock, 114.00 mm travel | 120.00 mm travel |