Yamaha TZR 250 (1987) vs Yamaha YZF 600 R6 (2017)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | TZR 250 | YZF 600 R6 |
| Years: | 1987 | 2017 |
| Engine: | Two stroke, parallel twin cylinders, read valve, | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 249 cc / 15.2 cu-in | 599 cc / 36.5 cu-in |
| Bore x Stroke: | 56.4 x 50 mm | 67 x 42.5 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 5.9:1 | 13.1;1 |
| Induction: | 2x Mikuni TM28SS carburetor | Fuel injection with YCC-T and YCC-I |
| Ignition: | CDI | TCI: Transistor Controlled Ignition |
| Starting: | Kick | Electric |
| Max Power: | 50 hp / 36.4 kW @ 10000 rpm | 87.1 kW / 116.7 hp @ 14500 rpm |
| Max Torque: | 35.5 Nm / 26.2 lb-ft @ 9750 rpm | 61.7 Nm / 45.5 lb-ft @ 10500 rpm |
| Transmission: | 6 speed | 6 Speed |
| Final Drive: | Chain | O-ring chain |
| Front Suspension: | Telescopic fork adjustable preload | 43mm KYB telescopic forks |
| Front Wheel Travel: | 140 mm / 5.5 in | 120 mm / 4.7 in |
| Rear Suspension: | Coil and gas spring preload 9-way preload position | KYB® piggyback shock, 4-way adjustable |
| Rear Wheel Travel: | 100 m / 3.9 in | 120 mm / 4.7 in |
| Front Brakes: | Single 320mm discs 2 piston calipers | 2x 320mm discs 4 piston calipers |
| Rear Brakes: | Single 210mm disc 1 piston caliper | Single 220mm disc 1 piston caliper |
| Front Tyre: | 100/80-17 | 120/70 ZR17 |
| Rear Tyre: | 120/80-17 | 180/55 ZR17 |
| Dimensions: | Length 2005 mm / 78.9 in Width 660 mm / 25.9 in | Length 2,040 mm / 80.3 in Width 706 mm / 27.8 in Height 1095 mm / 43.1 in |
| Wheelbase: | 1375 mm / 54.1 in | 1375 mm / 54.1 in |
| Seat Height: | 760 mm / 29.9in | 850 mm / 33.5 in |
| Wet Weight: | 140 kg / 308.6 lbs | 190 kg / 419 lbs |
| Fuel Capacity: | 16 Litres / 4.2 US gal | 17.5 Litres / 4.5 US gal |