| Engine | Honda CB400SF | Triumph Rocket III |
|---|---|---|
| Engine code | NC42E | |
| Displacement | 399 cc | 2294 cc |
| Max power | 53 hp (@10 500 RPM) | 142 hp (@5 750 RPM) |
| Max torque | 28 lb ft (@9 500 RPM) | 147 lb ft (@2 500 RPM) |
| Redline | 13 000 RPM | 6 500 RPM |
| Idling speed | 1 400 RPM | 800 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-4 | DOHC Inline-3 |
| Compression | 11.30:1 | 8.70:1 |
| Oil capacity | 3.60 quart | 5.58 quart |
| Oil type | 10W40, Motul 5100, Shell Rotella 10W40 | |
| Spark plug type | NKG CR8EH9, DENSO U24FER9 | NGK DPR8EA-9 |
| Cooling | Liquid | Liquid |
| Valves | 16 | 12 |
| Bore | 55.0 mm | 101.6 mm |
| Stroke | 42.0 mm | 94.3 mm |
| Weight to power | 8.11 lbs/hp | 5.43 lbs/hp |
| Power to weight | 308 hp/2500lbs | 460 hp/2500lbs |
| Battery type | 12V - 8.6Ah |
| Gearbox | Honda CB400SF | Triumph Rocket III |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Shaft |
| Chain type | ||
| Gears count | 6 | 5 |
| Primary ratio | 2.171 | 1.034 |
| Final drive | 2.933 | 2.846 |
| 1. gear | 3.307 (45 mph) | 2.929 (57 mph) |
| 2. gear | 2.294 (65 mph) | 1.947 (86 mph) |
| 3. gear | 1.75 (85 mph) | 1.435 (117 mph) |
| 4. gear | 1.421 (105 mph) | 1.16 (144 mph) |
| 5. gear | 1.24 (120 mph) | 0.964 (173 mph) |
| 6. gear | 1.13 (132 mph) |
| Chasis | Honda CB400SF | Triumph Rocket III |
|---|---|---|
| Frame type | Tubular steel, double cradle | Tubular steel twin spine |
| Front susp. | 43mm upside down forks (4.72 in travel) | |
| Rear susp. | Chromed spring twin shocks |