| MODEL | HONDA XR 250R 1981 |
| Year | 1981 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valve |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 74 x 57.8 mm |
| Compression Ratio | 10.0:1 |
| Cooling System | Air cooled |
| Max Power | 21.9 kW / 30 hp @ 9000 rpm |
| Max Torque | 24.5 Nm / 18 ft-lb @ 7500 rpm |
| Ignition | Capacitor discharge (CDI) |
| Induction | 2x 30.5 mm piston valve Keihin |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Wet, four friction discs |
| Final Drive | Chain, #520 x 106 |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 38 mm leading-axle air-spring forks, 245 mm / 9.6 in travel |
| Rear Suspension | Pro-Link, Kayaba damper adjustable for spring preload and rebound damping, 247 mm / 9.7 in travel |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 945 mm / 37.2 in |
| Wheelbase | — |
| Ground Clearance | 320 mm / 12.6 in |
| Dry Weight | 108 kg / 238 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | 5.10-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 9.8 Litres / 2.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 1981 XR250R was Honda's mid-size four-stroke enduro, built largely along the lines of the bigger XR500 and sharing its suspension layout. Its four-valve SOHC single gave smooth, usable torque, and the bike had Pro-Link rear suspension, a six-speed gearbox, CD ignition, aluminium rims, a twin-port exhaust and an automatic decompressor to help starting.
