BMW R 60 US (1968) vs Yamaha YZF 600 R6 (2010) vs Yamaha YBR 125 (2005-06) vs Yamaha FJR 1300E / ES (2014)
Comparison technical specifications
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| Make: | BMW | Yamaha | Yamaha | Yamaha |
| Model: | R 60 US | YZF 600 R6 | YBR 125 | FJR 1300E / ES |
| Years: | 1968 | 2010 | 2005-06 | 2014 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, single cylinder, SOHC, 2 valves | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 593 cc / 36 cu-in | 599 cc / 36.5 cu-in | 124 cc / 7.6 cu-in | 1298 cc / 79.2 cu-in |
| Bore x Stroke: | 72 x 73 mm | 67 x 42.5 mm | 54 x 54 mm | 79 x 66.2 mm |
| Compression Ratio: | 7.5:1 | 13.1;1 | 10.0:1 | 10.8:1 |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Liquid cooled |
| Induction: | 2 x 24mm Bing slide carburetors | 41 mm Mikuni throttle body F.I. | Carburetor | Electronic Fuel Injection |
| Ignition: | Bosch Magneto | TCI | CDI | TCI: Transistor Controlled Ignition |
| Starting: | Kick | Electric | Electric & kick | Electric |
| Max Power: | 22.4 kW / 30 hp @ 5800 rpm | 123.7 hp / 91 kW @ 14500 rpm | 10.1 hp / 7.4 kW @ 7800 rrpm | 145 hp / 105.7 kW @ 8500 rpm |
| Max Torque: | 49 Nm / 36 lb-ft @ 5000 rpm | 65.7 Nm / 6.6 kgf-m / 47.7 ft-lb @ 11500 rpm | 10 Nm @ 7400 rpm | 125 Nm / 13.7kgf-m @ 6000 rpm |
| Transmission: | 4 Speed | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Shaft | O-ring chain | Chain | Shaft |
| Frame: | Double loop tubular frame with bolt on rear section | Deltabox aluminium frame with revised rigidity balance | Steel double cradle | Aluminium, twin spar |
| Front Suspension: | Telescopic hydraulic forks | Fully adjustable 41 mm inverted cartridge fork, | Telescopic forks | 48mm upside-down telescopic fork w/adjustable preload, compression and rebound damping; |
| Front Wheel Travel: | 208 mm / 8.2 in | 115 mm / 4.5 in | 120 mm / 4.7 in | 137 mm / 5.3 in |
| Rear Suspension: | Long swinging arm with strut | Fully adjustable link Monocross; 4-way adjustable, | Bottom link swingarm | Single shock, link-type, w/adjustable preload and rebound damping; |
| Rear Wheel Travel: | 125 mm / 4.9 in | 119.4 mm / 4.7 in | 105 mm / 4.1 in | 129 mm / 4.9 in |
| Front Brakes: | 200mm Drum | 2x 310mm discs 4 piston calipers | Single 245mm disc | 2x 320mm discs 4 piston calipers |
| Rear Brakes: | 200mm Drum | Single 220mm disc 1 piston caliper | Drum | Single 283mm disc 2 piston caliper |
| Front Tyre: | 3.50-18 | 120/70 ZR17 | 90/90-M21 | 120/70 ZR17 |
| Rear Tyre: | 4.00-18 | 180/55 ZR17 | 90/90-M18 | 180/55 ZR17 |
| Wheelbase: | 1488 mm / 58.6 in | 1375 mm / 54.1 in | 1290 mm / 51 in | 1544.3 mm / 60.8 in |
| Seat Height: | 845 mm / 33.3 in | 850 mm / 33.5 in | 780 mm / 31.0 in | 805 mm - 825.5 mm / 31.7 in - 32.5 in. |
| Wet Weight: | 207 kg / 457 lbs | 189 kg / 415.8 lbs. | 106 kg / 234 lbs | 292 kg / 644 lbs |
| Fuel Capacity: | 24 Litres / 6.5 US gal | 17.5 Liters / 3.7 gal | 12 Litres / 3.4 US gal | 25 Liters / 6.6 gal |