Yamaha TZR 125 Naked (1990-91) vs Yamaha GTS1000 / ABS (1993-94) vs Yamaha YZF 600 R6 (2017) vs Yamaha FZR 1000 Geneses (1987)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha | Yamaha |
| Model: | TZR 125 Naked | GTS1000 / ABS | YZF 600 R6 | FZR 1000 Geneses |
| Years: | 1990-91 | 1993-94 | 2017 | 1987 |
| Engine: | Two stroke, single cylinder, read valve, | Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, 35° forward inclined transverse four cylinder, DOHC, 5 valves per cylinder. |
| Capacity: | 124 cc / 7.6 cu-in | 1002 cc / 61.2 cu-in | 599 cc / 36.5 cu-in | 989 cc / 60.9 cu-in |
| Bore x Stroke: | 56.4 x 50 mm | 75.5 X 56 mm | 67 x 42.5 mm | 75 x 56 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 5.9:1 | 10.8:1 | 13.1;1 | 11.2:1 |
| Induction: | Mikuni VM26SS carburetor | Electronic fuel infection. | Fuel injection with YCC-T and YCC-I | 4x 37mm BDS Mikuni carburetors |
| Starting: | Electric | Electric | Electric | |
| Max Power: | 26.hp / 19.3 kW @ 10200 rpm | 102 hp / 74.4 kW @ 9000 rpm | 87.1 kW / 116.7 hp @ 14500 rpm | 135 hp / 100.8 kW @ 10000 rpm |
| Max Torque: | 1.8 kgf-m / 13 lb-ft @ 10000 rpm | 106 Nm / 78.1 lb-ft @ 6500 rpm | 61.7 Nm / 45.5 lb-ft @ 10500 rpm | 10.4 kgf-m / 102 Nm @ 8500 rpm |
| Clutch: | Wet Plate | Wet, multiple discs, cable operated | Wet, slipper, cable operated | Wet, multiplate disc, hydraulic |
| Final Drive: | Chain | Chain | O-ring chain | Chain, 532 'O'-ring type |
| Front Suspension: | Telescopic fork | Single sided swingarm variable preload, compression and rebound damping | 43mm KYB telescopic forks | 41mm Telescopic infinite preload adjustable. |
| Front Wheel Travel: | 140 mm / 5.5 in | 116 mm / 4.5 in | 120 mm / 4.7 in | 130 mm / 5.1 in |
| Rear Suspension: | Monocross | Monocross variable preload, compression and rebound damping | KYB® piggyback shock, 4-way adjustable | Monoshock infinite preload adjust, 130mm wheel travel. |
| Rear Wheel Travel: | 100 mm / 3.9 in | 130 mm / 5.1 in | 120 mm / 4.7 in | 130 mm / 5.1 in |
| Front Brakes: | Single disc | Single 330mm disc 6 piston caliper with ABS | 2x 320mm discs 4 piston calipers | 2x 317 mm discs 4 piston calipers |
| Rear Brakes: | Drum | Single 282mm disc 2 piston caliper | Single 220mm disc 1 piston caliper | Single 264 mm disc 2 piston caliper |
| Front Tyre: | 90/90 16 | 130/60 ZR17 | 120/70 ZR17 | 120/70 VR17 |
| Rear Tyre: | 100/90 18 | 170/60 ZR17 | 180/55 ZR17 | 160/60 VR18 |
| Wet Weight: | 122.7 kg / 269 lbs | 278.2 kg / 613.3 lbs | 190 kg / 419 lbs | 225 kg / 496 lbs |