Husqvarna FE 450 (2018-2019) vs Yamaha RD 125 (1973) vs KTM 990 Super Duke (2012) vs BMW K100 RS (1985)
Comparison technical specifications
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| Make: | Husqvarna | Yamaha | KTM | BMW |
| Model: | FE 450 | RD 125 | 990 Super Duke | K100 RS |
| Years: | 2018-2019 | 1973 | 2012 | 1985 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Two stroke, parallel twin | Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder | Four stroke, horizontal in line four cylinder, DOHC, 2 valves per cylinder |
| Capacity: | 449 cc / 27.4 cu-in | 124 cc / 7.6 cu-in | 999.8 cc / 60.9 cu-in | 987 cc / 60.2 cub. in |
| Bore x Stroke: | 95 x 63.4 mm | 43 х 43 mm | 101 x 62.4mm | 67 x 70 mm |
| Compression Ratio: | 11.8:1 | 6.8:1 | 11.5:1 | 10.2:1 |
| Cooling System: | Liquid cooling system, continuous circulation of cooling liquid with water pump | Air cooled | Liquid cooling, | Liquid cooled |
| Induction: | Fuel Injection | 2x 18mm Teikei carburetors | Electronic fuel injection / electric | Electronic injection, Bosch LE-Jetronic |
| Ignition: | Keihin EMS | Battery coil | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment | Electronic injection, Bosch LE-Jetronic |
| Starting: | Electric | Kick | Electric | Electric |
| Max Power: | NA | 17 hp / 12.4 kW @ 8500 rpm | 88 kW / 120 hp @ 9000 rpm | 65.6 kW / 90 hp @ 8000 rpm |
| Max Torque: | NA | 1.3 kgf-m @ 8000 rpm | 100 Nm @ 7000 rpm | 86 Nm / 8.8 kgf-m / 63 ft-lb @ 6000 rpm |
| Transmission: | 6 speed, claw shifted | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain X-Ring 5/8 x 1/4 in | Chain | Chain, X-Ring 5/8 x 5/16" | Shaft |
| Frame: | 25CrMo4 steel central-tube frame | steel tube engine used as a stressed member | Chromium-Molybdenum trellis frame, powder-coated Subframe Aluminium Handlebar Aluminium Ø 28/22 mm (1.89"), tapered | Tubular space frame, engine serving as load bearing component |
| Front Suspension: | 48mm WP-USD Xplor with preload adjuster | 28 mm telescopic forks | 48mm WP Upside down adjustable | Telescopic fork with hydraulic shock absorber |
| Rear Suspension: | WP Monoshock with linkage | Dual rear shock pre-load adjustable | WP shock, fully adjustable | Monolever swinging arm |
| Front Brakes: | Single 260 mm Magura two-piston floating calliper | 150 mm Drum | 2x 320mm discs 4 piston calipers | 2 x ∅285 mm discs, 2 piston calipers |
| Rear Brakes: | Single 220 mm Magura single-piston floating calliper | 130 mm Drum | Single 240mm disc 1 piston caliper | Single ∅285 mm disc, 1 piston caliper |
| Front Tyre: | 90/90-21 | 2.75-18 | 120/70 ZR17 | 100/90-V18 |
| Rear Tyre: | 140/90-18 | 3.00-18 | 180/55 ZR17 | 130/90-V17 |
| Wheelbase: | 1482±10 mm / 58.3 in | 1245 mm / 49.0 in | 1438 mm / 56.6 in | 1516 m /59.7 in. |
| Seat Height: | 970 mm / 38.2 in | 749 mm / 29.5 in | 855 mm / 33.6 in | 810 mm / 31.90 in. (760 mm / 29.9 in for low seat model) |
| Fuel Capacity: | 8.5 Litres / 2.3 US gal | 11.5 Litres / 3.04 US gal | 18.5 Litres / 4.8 gal | 22 Liters / 5.8 US gal |