| MODEL | HONDA CBR 250RR 2021 |
| Year | 2021 |
| Engine Type | Four stroke, parallel twin, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 249.7 cc / 15.2 cu in |
| Bore X Stroke | 62 x 41.3 mm |
| Compression Ratio | 12.0:1 |
| Cooling System | Liquid cooled |
| Max Power | 30 kW / 41 hp @ 13000 rpm |
| Max Torque | 25 Nm / 18.4 lb-ft @ 11000 rpm |
| Ignition | Full transistorised, battery |
| Induction | PGM-FI fuel injection, throttle-by-wire |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Pressure-fed and splash |
| Gear Box | 6 Speed |
| Clutch | Wet multiplate, coil spring, assist and slipper |
| Final Drive | #520 O-ring sealed chain |
| CHASSIS SPECS | |
| Frame | Steel truss |
| Front Suspension | 37 mm inverted telescopic fork |
| Rear Suspension | Aluminium swingarm, Pro-Link monoshock, 5-step preload adjustable |
| Front Brakes | Single 310 mm disc, 2-piston caliper, ABS |
| Rear Brakes | Single 240 mm disc, 1-piston caliper, ABS |
| DIMENSION SPECS | |
| Overall Length | 2065 mm / 81.3 in |
| Overall Width | 725 mm / 28.5 in |
| Overall Height | 1095 mm / 43.1 in |
| Seat Height | 790 mm / 31.1 in |
| Wheelbase | 1390 mm / 54.7 in |
| Ground Clearance | 145 mm / 5.7 in |
| Dry Weight | — |
| Wet Weight | 168 kg / 370 lbs |
| WHEEL SPECS | |
| Front Tyre | 110/70R17M/C 54H |
| Rear Tyre | 140/70R17M/C 66H |
| FUEL SYSTEM | |
| Fuel Capacity | 14 Litres / 3.7 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The first update of the CBR250RR raised output to around 41 PS through new pistons and ring coatings, stronger con-rods, revised intake, exhaust and engine mapping. An assist and slipper clutch became standard, with a two-way quickshifter available, while the styling and chassis were carried over and weight rose slightly to 168 kg.
