Yamaha WR 250R (2019-20) vs Yamaha RD 250R / RZ 250R (1984-85)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | WR 250R | RD 250R / RZ 250R |
| Years: | 2019-20 | 1984-85 |
| Engine: | Four stroke, single cylinder, DOHC, 4 valve | Two stroke, parallel twin |
| Capacity: | 249 cc / 15.2 cub in. | 247 cc / 15.0 cu-in |
| Bore x Stroke: | 77 x 53.6 mm | 54 х 54 mm |
| Compression Ratio: | 11.8:1 | 6.2 :1 |
| Cooling system: | Liquid cooled | Liquid cooled |
| Lubrication: | Dry sump | Autolube |
| Induction: | Electronic fuel injection | 2x Mikuni VM28 SC carburetor |
| Ignition: | TCI | CDI |
| Starting: | Electric | Kick |
| Transmission: | 6 Speed, constant mesh | 6 Speed |
| Final Drive: | Chain | Chain |
| Clutch: | Wet, multi-plate | Wet multi-plate |
| Front Suspension: | Inverted 46 mm fork, adjustable | Telescopic forks |
| Rear Suspension: | Swingarm, single shock, 46 mm, adjustable | Monocross |
| Front Brakes: | Hydraulic, single disc, 250 mm Ø | Single 267mm disc |
| Rear Brakes: | Hydraulic, single disc, 230 mm Ø | Drum |
| Front Tyre: | 80/100 -21 | 3.00-18 |
| Rear Tyre: | 120/80 -18 | 3.50-18 |
| Seat Height: | 930 mm / 36.6 in | 785 mm / 30.9 in |
| Ground Clearance: | 300 mm / 11.8 in. | 165 mm / 6.4 in |
| Fuel Capacity: | 7.6 Litres / 2 US gal | 16.5 Litres / 4.3 US gal |