Yamaha IT 250 (1980-81) vs Kawasaki ZX-6R Ninja (2020)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki |
| Model: | IT 250 | ZX-6R Ninja |
| Years: | 1980-81 | 2020 |
| Engine: | Two stroke, single cylinder, read valve | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 246 cc / 15.07 cu-in | 636 cc / 38.8 cub in |
| Bore x Stroke: | 70 x 64 mm | 67.0 x 45.1mm |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 9.8;1 | 12.9:1 |
| Induction: | 30mm Mikunis carburetor | DFI with four 38mm Keihin throttle bodies and oval sub-throttles |
| Ignition: | CDI | TCBI with digital advance |
| Starting: | Kick | Electric |
| Max Power: | 32.2 hp @ 7500 rpm | NA |
| Max Torque: | 22.6 / 3.12 kg-m @ 7500 rpm | NA |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | 520 series X-ring chain |
| Frame: | Single-downtube, full-cradle chrome-moly frame with aluminum box-section swing arm | Tubular, diamond frame |
| Front Suspension: | Air-assisted, oil-damped fork | 41mm inverted Showa BP-SFF fork with top-out springs, stepless compression and rebound damping, adjustable spring preload |
| Rear Suspension: | Aluminum-bodied monoshock with adjustable damping and preload producing | Bottom-link Uni-Trak with gas-charged shock, top-out spring and pillow ball upper mount, stepless compression damping, 25-way adjustable rebound damping, fully adjustable spring preload |
| Rear Wheel Travel: | 270 mm / | 150 mm / 5.9 in |
| Front Brakes: | Drum 130 x 22mm shoes | 2 x 310mm petal rotors with dual radial-mount, Nissin four-piston, monobloc calipers and available KIBS ABS |
| Rear Brakes: | Drum 150 x 25mm shoes | Single 220mm petal rotor with single-piston caliper and KIBS ABS |
| Front Tyre: | 90/90 -21 | 120/70 ZR17 |
| Rear Tyre: | 12/90 -18 | 180/55 ZR17 |
| Rake: | 29° | 24.5° |
| Trail: | 125 mm / 4.9 in | 103 mm / 4.0 in |
| Wheelbase: | 1450 mm / 57.0 in | 1400 mm / 55.1 in |
| Wet Weight: | 106.5 kg / 234.7 lbs | 192 kg / 430 lbs |
| Fuel Capacity: | 13 Litres / 3.4 US gal | 17 Litres 4.5 US gal |