| MODEL | HONDA XR 250 1979 |
| Year | 1979 |
| Engine Type | Four-stroke, single cylinder, SOHC, 4 valves |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 74 x 57.8 mm |
| Compression Ratio | 9.6:1 |
| Cooling System | Air cooled |
| Max Power | 21.9 kW / 30 hp @ 9000 rpm |
| Max Torque | 24.5 Nm / 18 lb-ft @ 7500 rpm |
| Ignition | CDI (capacitor discharge) |
| Induction | 2x 30.5 mm piston valve Keihin carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | Wet, four friction plates |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 38 mm leading-axle hydraulic fork, 223.5 mm / 8.8 in travel |
| Rear Suspension | Twin laid-down gas-charged shocks, three-step spring preload, 198 mm / 7.8 in travel |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | 2210 mm / 87 in |
| Overall Width | 874 mm / 34.4 in |
| Overall Height | 1210 mm / 47.6 in |
| Seat Height | 880 mm / 34.6 in |
| Wheelbase | 1400 mm / 55.1 in |
| Ground Clearance | 280 mm / 11 in |
| Dry Weight | 114.5 kg / 252.5 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-23 |
| Rear Tyre | 4.60-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 9.8 Litres / 2.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 1979 XR250 was the first of Honda's XR250 line, a competition-oriented off-road version of the XL250S with a four-valve SOHC single. It ran a 23-inch front wheel, twin laid-down rear shocks and drum brakes, and a period road test rated it the best four-stroke 250 enduro bike of its day: tractable and comfortable, though heavier and less powerful than two-stroke rivals.
