Yamaha FZ Fi V 3.0 (2019) vs Yamaha XSR 125 Legacy (2022) vs Yamaha WR 250R (2019-20) vs Yamaha YZF 1000R Thunder ace (2000)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha | Yamaha |
| Model: | FZ Fi V 3.0 | XSR 125 Legacy | WR 250R | YZF 1000R Thunder ace |
| Years: | 2019 | 2022 | 2019-20 | 2000 |
| Engine: | Four stroke, single cylinder, SOHC, 2 valve | Four stroke, single cylinder, SOHC, 4 valve with variable valve actuation | Four stroke, single cylinder, DOHC, 4 valve | Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder |
| Capacity: | 149cc / 9.09 cu-in | 124 cc / 7.6 cu-in | 249 cc / 15.2 cub in. | 1002 cc / 61.1 cu-in |
| Bore x Stroke: | 57.3 × 57.9 mm | 52 x 58.6 mm | 77 x 53.6 mm | 75.5 x 56 mm |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 9.5:1 | 11.2:1 | 11.8:1 | 11.5:1 |
| Induction: | Fuel Injection | Electronic fuel injection | Electronic fuel injection | 4x 38mm Mikuni BDSR38 with TPS carbs |
| Lubrication: | Wet sump | Wet sump | Dry sump | Wet sump |
| Ignition: | TCI | TCI | TCI | Digital TCI |
| Starting: | Electric | Electric | Electric | Electric |
| Clutch: | Wet, multiple disc | Wet multiple-disc | Wet, multi-plate | Multi-plate wet clutch |
| Transmission: | 5 Speed | 6 Speed slip-and-assist clutch | 6 Speed, constant mesh | 5 speed |
| Final Drive: | Chain | Chain | Chain | Chain |
| Frame: | Diamond | Steel Deltabox | Semi-double-cradle, main frame of cast and forged aluminium, with high-strength downtubes | Aluminium, twin spar |
| Front Suspension: | Telescopic fork | 37mm USD telescopic fork | Inverted 46 mm fork, adjustable | 45mm forks, adjustable preload, bump and rebound. |
| Rear Suspension: | Swingarm with monoshock | Monoshock operating on a die-cast aluminium swingarm | Swingarm, single shock, 46 mm, adjustable | Mono shock adjustable preload, bump and rebound. |
| Front Brakes: | Single 257mm disc 2 piston caliper, single channel ABS | Single 267mm disc 2 piston caliper | Hydraulic, single disc, 250 mm Ø | 2x 298mm discs 4 piston calipers |
| Rear Brakes: | Single disc 1 piston caliper | Single 220mm disc 1 piston caliper | Hydraulic, single disc, 230 mm Ø | Single 245mm disc 2 piston caliper |
| Front Tyre: | 100/80-17 | 110/70 -17 | 80/100 -21 | 120/70 ZR17 |
| Rear Tyre: | 140/60-R17 | 140/70 -17 | 120/80 -18 | 180/55 ZR17 |
| Wheelbase: | 1330 mm / 52.3 in | 1330 mm / 52.3 in | 1420 mm . 55.9 in. | 1433 mm / 56.4 in |
| Seat Height: | 790 mm / 31.1 in | 815 mm / 32 in | 930 mm / 36.6 in | 795 mm / 31.3 in |
| Fuel Capacity: | 12 Litres / 3.17 US gal | 11 Litres / 2.9 US gal | 7.6 Litres / 2 US gal | 19 Litres / 5.0 gal |