| Engine | Yamaha R6 | Yamaha WR450F |
|---|---|---|
| Displacement | 599 cc | 449 cc |
| Max power | 123 hp (@14 500 RPM) | 50 hp (@8 500 RPM) |
| Max torque | 47 lb ft (@10 500 RPM) | 36 lb ft (@7 500 RPM) |
| Redline | 16 000 RPM | 11 500 RPM |
| Idling speed | 1 200 RPM | 1 900 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-4 | DOHC Single |
| Compression | 13.10:1 | 12.30:1 |
| Oil capacity | 3.22 quart | 0.95 quart |
| Oil type | 10W40, Yamalube 10W40, Shell Rotella 10W40 | 10W40 |
| Spark plug type | NGK CR10EK | NGK CR8E |
| Cooling | Liquid | Liquid |
| Valves | 16 | 5 |
| Bore | 67.0 mm | 95.0 mm |
| Stroke | 42.5 mm | 63.4 mm |
| Throttle bore | 42.0 mm | |
| Weight to power | 3.39 lbs/hp | 5.47 lbs/hp |
| Power to weight | 737 hp/2500lbs | 457 hp/2500lbs |
| Battery type | YTZ10S | 12V 6Ah, YTZ7S (F) |
| Gearbox | Yamaha R6 | Yamaha WR450F |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | DAIDO 520VM2 114 links | |
| Gears count | 6 | 5 |
| Primary ratio | 2.073 | 2.652 |
| Final drive | 2.813 | 3.846 |
| 1. gear | 2.583 (78 mph) | 2.417 (37 mph) |
| 2. gear | 2.0 (101 mph) | 1.733 (52 mph) |
| 3. gear | 1.667 (121 mph) | 1.313 (68 mph) |
| 4. gear | 1.444 (140 mph) | 1.05 (84 mph) |
| 5. gear | 1.286 (157 mph) | 0.84 (106 mph) |
| 6. gear | 1.15 (176 mph) |
| Chasis | Yamaha R6 | Yamaha WR450F |
|---|---|---|
| Frame type | Aluminium Deltabox | Bilateral beam aluminum |
| Front susp. | USD, dia 41mm, 4.53 in travel | 48mm USD, 11.81 in travel |
| Rear susp. | 4.72 in travel | Swingarm monoshock, 11.57 in travel |