| Engine | Honda CBR250RR | Honda CB300R |
|---|---|---|
| Displacement | 249 cc | 286 cc |
| Max power | 45 hp (@15 000 RPM) | 31 hp (@8 500 RPM) |
| Max torque | 15 lb ft (@12 000 RPM) | 19 lb ft (@7 500 RPM) |
| Redline | 19 000 RPM | |
| Idling speed | 1 200 RPM | 1 200 RPM |
| Management | Carburetor | Fuel Injection |
| Layout | DOHC Inline-4 | DOHC Single |
| Compression | 11.50:1 | 10.70:1 |
| Oil capacity | 2.56 quart | 1.70 quart |
| Oil type | SAE10W–40, SAE20W–50 | |
| Spark plug type | NGK CR9EH–9, NGK CR9EHVX–9 | |
| Cooling | Liquid | Liquid |
| Valves | 16 | 4 |
| Bore | 48.5 mm | 76.0 mm |
| Stroke | 33.8 mm | 63.0 mm |
| Weight to power | 7.69 lbs/hp | 10.17 lbs/hp |
| Power to weight | 325 hp/2500lbs | 245 hp/2500lbs |
| Battery type | 12V 8Ah, YTLBX7 | 12V 7AH |
| Gearbox | Honda CBR250RR | Honda CB300R |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | DID428VS1, RK428SMO | |
| Gears count | 6 | 0 |
| Primary ratio | 2.966 | |
| Final drive | 3.058 | |
| 1. gear | 2.733 (54 mph) | |
| 2. gear | 2.0 (73 mph) | |
| 3. gear | 1.59 (93 mph) | |
| 4. gear | 1.333 (111 mph) | |
| 5. gear | 1.153 (127 mph) | |
| 6. gear | 1.035 (142 mph) |
| Chasis | Honda CBR250RR | Honda CB300R |
|---|---|---|
| Frame type | Backbone steel | Steel diamond frame |
| Front susp. | 37mm forks | 41mm USD, 5.12 in travel |
| Rear susp. | Monoshock | Monoshock, 4.21 in travel |