MV Agusta F4 LH44 1000 (2019) vs Yamaha XS 650 / XS 650D (1977) vs Yamaha YBR 125 (2005-06)
Comparison technical specifications
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| Make: | MV Agusta | Yamaha | Yamaha |
| Model: | F4 LH44 1000 | XS 650 / XS 650D | YBR 125 |
| Years: | 2019 | 1977 | 2005-06 |
| Engine: | Four stroke, transverse four cylinder. DOHC, 4 radial valves per cylinder | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. | Four stroke, single cylinder, SOHC, 2 valves |
| Capacity: | 998 cc / 60.9 cu-in | 653 cc / 39.8 cu in | 124 cc / 7.6 cu-in |
| Bore x Stroke: | 79 x 50.9 mm | 75 x 74 mm | 54 x 54 mm |
| Compression Ratio: | 13.4:1 | 8.4:1 | 10.0:1 |
| Cooling System: | Cooling with separated liquid and oil radiators | Air cooled | Air cooled |
| Starting: | Electric | Electric and kick | Electric & kick |
| Max Power: | 143.5 kW / 195 hp @ 13400 rpm | 39.5 kW / 53 hp @ 7200 rpm | 10.1 hp / 7.4 kW @ 7800 rrpm |
| Max Torque: | 110.0 Nm / @ 9300 rpm | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm | 10 Nm @ 7400 rpm |
| Transmission: | Cassette style; six speed, constant mesh | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | 43 mm (1.69 in.) Öhlins USD front fork, NIX 30 type with TIN coating on inner tubes, left compression and right rebound manual adjustment, top out spring. | Telescopic forks | Telescopic forks |
| Rear Suspension: | Öhlins progressive, TTX36 twin tube rear shock absorber with piggyback resevoir, compression and rebound adjusted with anodized aluminium adjustment knobs Single sided swing arm material Aluminium alloy | Dual shock absorbers | Bottom link swingarm |
| Front Brakes: | 2x floating 320mm discs and aluminium flange, Front brake caliper Brembo radial-type, single-piece with 4 pistons Ø 34 mm (Ø 1.34 in.) | Twin hydraulic discs, 267 mm | Single 245mm disc |
| Rear Brakes: | Single 210mm disc Nissin with 4 pistons caliper | Drum | Drum |
| Front Tyre: | 120/70 ZR17 Pirelli DIABLO Supercorsa SP | 3.50H-19 4PR | 90/90-M21 |
| Rear Tyre: | 200/55 ZR17 Pirelli DIABLO Supercorsa SP | 4.00H-18 4PR | 90/90-M18 |
| Wheelbase: | 1430 mm / 56.2 in | 1435 mm / 56.5" | 1290 mm / 51 in |
| Seat Height: | 830 mm / 2.6 in | 810 mm / 31.9" | 780 mm / 31.0 in |
| Fuel Capacity: | 17 Litres / 4.4 US gal | 15 Litres / 4.0 US gal | 12 Litres / 3.4 US gal |