| MODEL | HONDA CBX 250RS 1983 - 1987 |
| Year | 1983 - 1987 |
| Engine Type | Four stroke, single cylinder, DOHC, 4 valve (radial) |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 72 x 61.3 mm |
| Compression Ratio | 10.5:1 |
| Cooling System | Air cooled |
| Max Power | 23.1 kW / 31 hp @ 9500 rpm |
| Max Torque | 20 Nm / 14.7 lb-ft @ 9000 rpm |
| Ignition | CDI |
| Induction | Keihin PH02 twin-choke carburettor |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Pressure-splash, wet sump |
| Gear Box | 6 Speed |
| Clutch | Wet multi-plate, coil spring |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Semi-double cradle |
| Front Suspension | Telescopic forks |
| Rear Suspension | Swinging arm, dual shocks |
| Front Brakes | Single 240 mm disc, 2 piston caliper |
| Rear Brakes | 180 mm drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | 745 mm / 29.3 in |
| Overall Height | 1060 mm / 41.7 in |
| Seat Height | 770 mm / 30.3 in |
| Wheelbase | 1355 mm / 53.3 in |
| Ground Clearance | 175 mm / 6.9 in |
| Dry Weight | 130 kg / 287 lbs |
| Wet Weight | 142 kg / 313 lbs |
| WHEEL SPECS | |
| Front Tyre | 90/90-18 |
| Rear Tyre | 110/90-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 4.0 US gal |
| Fuel Consumption | 52 mpg (test average) |
| Top Speed | 164 km/h / 102 mph |
The CBX250RS succeeded the CB250RS as Honda's light sporting single, using an XR-derived engine with a radial four-valve DOHC head and a two-stage carburettor whose second throat opened only at wide throttle. Light and agile with strong brakes, it was well liked in Japan but sold only a few hundred units in the UK, where it was pricier than the older RS and tall-geared for motorway work.
