Yamaha TX 750 (1972) vs Kawasaki Z 305LTD () vs Hyosung GT 250R (2015-17) vs BMW R 1150GS (1999)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki | Hyosung | BMW |
| Model: | TX 750 | Z 305LTD | GT 250R | R 1150GS |
| Years: | 1972 | 2015-17 | 1999 | |
| Engine: | Four stroke, parallel twin cylinders, SOHC 2 valve per cylinder | Four stroke, parallel twin, SOHC, 2 Valve per cylinder. | Four stroke, 75° V twin, DOHC, 4 per valve cylinder. | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder |
| Capacity: | 743 cc / 45.3 cu-in | 305 cc / 18.6 cu-in | 248 cc / 15.2 cu-in | 1130 cc / 69 cu in |
| Bore x Stroke: | 80 x 74 mm | 61.0 x 52.4 mm | 57 x 48.8 mm | 101 x 70.5 mm |
| Cooling System: | Air cooled | Air cooled | Oil / Air | Air/Oil cooled |
| Compression Ratio: | 8.8:1 | 9.7:1 | 10.2:1 | 10.3:1 |
| Induction: | Carburetor | 2x 32mm Mikuni carburetor | Electronic fuel Injection | Bosch Motronic MA 2.4 Fuel injection |
| Ignition: | Breaker point | Digital CDI | Electronic ignition MA 2.2 Bosch Motronic | |
| Starting: | Electric & Kick | Electric | Electric | Electric |
| Max Power: | 63 hp / 45.9 kW @ 6100 rpm | 30 hp / 22.3 kW @ 9000 rpm | 20.6 kW / 27.6 hp @10500 rpm | 62.5 kW / 85 hp @ 6750 rpm (rear tyre 58.9 kW / 79 hp @ 6750 rpm) |
| Max Torque: | 7 kgf-m / 50.6 lb-ft @ 6000 rpm | 2.5 kg-m / 18.0 lb-ft @ 7000 rpm | 21.1 Nm / 15.5 lb-ft @7000 rpm | 98 Nm / 10.0 kgf-m / 71 lb-ft @ 5250 rpm |
| Transmission: | 5 Speed | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Belt | Chain | Shaft |
| Front Suspension: | Telescopic forks | Telescopic forks | 41mm Upside down Telescopic | Light. Telelever with central spring strut, progressive coil spring, twin-tube gas-filled shock, |
| Rear Suspension: | Dual shock | Swing arm | Swing arm with Progressive linkage Hydraulic Mono shock absorber (Preload adjustable) | Patented BMW Paralever swing arm & shaft drive, single shock with variable rebound and damping adjustments |
| Front Brakes: | Single or dual 300mm disc 2 piston calipers (In Japan, the United States, and other markets the bike had a single disc, although the lugs needed to mount a second disc were in place. ) | Single 255mm disc | Single 300mm disc 2 piston caliper | 2 x 304mm discs, 4 piston calipers |
| Rear Brakes: | 180mm Drum | Drum | Single 230mm disc 2 piston caliper | Single 276mm disc, 2 piston caliper |
| Front Tyre: | 3.50-19 | 3.00 -18 | 110/70 -17 | 110/80 R19 |
| Rear Tyre: | 4.00-18 | 120/90-16 | 150/70 -17 | 150/70 R17 |
| Wheelbase: | 1455 mm / 57.3 in | 1355 mm / 53.3 in | 1435 mm / 56.5 in | 1,501 mm / 59.1 in |
| Seat Height: | 810 mm / 32 in | 750 mm / 29.5 in | 790 mm / 32.6 in | 850 mm / 33.5 in |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 16.5 Litres / 4.3 US gal | 17 Litres / 4.4 US gal | 22 Litres / 5.8 US gal |