| Engine | Yamaha R6 | Yamaha XSR125 |
|---|---|---|
| Displacement | 599 cc | 124 cc |
| Max power | 123 hp (@14 500 RPM) | 15 hp (@10 000 RPM) |
| Max torque | 47 lb ft (@10 500 RPM) | 8 lb ft (@8 000 RPM) |
| Redline | 16 000 RPM | 11 000 RPM |
| Idling speed | 1 200 RPM | 1 200 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-4 | SOHC Single |
| Compression | 13.10:1 | 11.20:1 |
| Oil capacity | 3.22 quart | 0.80 quart |
| Oil type | 10W40, Yamalube 10W40, Shell Rotella 10W40 | 10W40 |
| Spark plug type | NGK CR10EK | |
| Cooling | Liquid | Liquid |
| Valves | 16 | |
| Bore | 67.0 mm | 52.0 mm |
| Stroke | 42.5 mm | 58.6 mm |
| Weight to power | 3.39 lbs/hp | 20.58 lbs/hp |
| Power to weight | 737 hp/2500lbs | 121 hp/2500lbs |
| Battery type | YTZ10S | 12V 3.0Ah GTZ4V |
| Gearbox | Yamaha R6 | Yamaha XSR125 |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | ||
| Gears count | 6 | 6 |
| Primary ratio | 2.073 | |
| Final drive | 2.813 | |
| 1. gear | 2.583 (78 mph) | 2.833 |
| 2. gear | 2.0 (101 mph) | 1.875 |
| 3. gear | 1.667 (121 mph) | 1.364 |
| 4. gear | 1.444 (140 mph) | 1.143 |
| 5. gear | 1.286 (157 mph) | 0.957 |
| 6. gear | 1.15 (176 mph) | 0.84 |
| Chasis | Yamaha R6 | Yamaha XSR125 |
|---|---|---|
| Frame type | Aluminium Deltabox | Deltabox frame |
| Front susp. | USD, dia 41mm, 4.53 in travel | 37mm USD telescopic fork, 5.12 in travel |
| Rear susp. | 4.72 in travel | Monoshock, 4.33 in travel |