| MODEL | YAMAHA WR 250R 2017 - 2018 |
| Year | 2017 - 2018 |
| Engine Type | Four stroke, single cylinder, DOHC, 4 valve |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 77 x 53.6 mm |
| Compression Ratio | 11.8:1 |
| Cooling System | Liquid cooled |
| Max Power | 29.5 hp (at the crank) |
| Max Torque | — |
| Ignition | TCI |
| Induction | Electronic fuel injection |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 6 Speed, constant mesh |
| Clutch | Wet, multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Semi-double-cradle, main frame of cast and forged aluminium, with high-strength downtubes |
| Front Suspension | Inverted 46 mm fork, adjustable, 269 mm / 10.6 in travel |
| Rear Suspension | Swingarm, single shock, adjustable, 269 mm / 10.6 in travel |
| Front Brakes | Hydraulic, single disc, 250 mm |
| Rear Brakes | Hydraulic, single disc, 230 mm |
| DIMENSION SPECS | |
| Overall Length | 2174 mm / 85.6 in |
| Overall Width | 810 mm / 31.9 in |
| Overall Height | 1229 mm / 48.4 in |
| Seat Height | 930 mm / 36.6 in |
| Wheelbase | 1420 mm / 55.9 in |
| Ground Clearance | 300 mm / 11.8 in |
| Dry Weight | — |
| Wet Weight | 134 kg / 295 lbs |
| WHEEL SPECS | |
| Front Tyre | 80/100-21 |
| Rear Tyre | 120/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 7.6 Litres / 2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The WR250R is Yamaha's street-legal trail bike built around a liquid-cooled, fuel-injected 249 cc four-valve single. It borrows chassis ideas from the YZ and WR competition range, with a tall aluminium-framed chassis and long-travel adjustable suspension. In 2017-18 it carried on essentially unchanged from the 2008 launch bike, aimed at riders who spend more time on dirt than tarmac.
