Yamaha MT-125 (2018-19) vs Yamaha IT 425 (1980)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | MT-125 | IT 425 |
| Years: | 2018-19 | 1980 |
| Engine: | Four stroke, single cylinder, SOHC, 4-valves | Two stroke, single cylinder, read valve |
| Capacity: | 124.7 cc / 7.6 cub in. | 425 cc / 25.9 cu-in |
| Bore x Stroke: | 52 x 58.6 mm | 85 x 75 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 11.2:1 | 7.3;1 |
| Induction: | Electronic fuel injection | 38mm VM38SS Mikuni carburetor |
| Ignition: | TCI (digital) | CDI |
| Starting: | Electric | Kick |
| Max Power: | 11 kW / 15 hp @ 9000 rpm | 36.9 hp / 27.5 kW @ 6000 rpm (rear tyre |
| Max Torque: | 12.4 Nm / 1.25 kgf-m / 9.14 ft-lb | 31 lb-ft / 4.23 kg-m @ 5500 rpm |
| Transmission: | 6-Speed, constant mesh | 5 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Upside-down telescopic fork, 41 mm dia. | 43mm Telescopic adjustable forks, 300mm wheel travel |
| Front Wheel Travel: | 130 mm / 5.1 in. | 250 mm / 9.8 in |
| Rear Suspension: | Linked monoshock with spring preload adjustment | Mono shock, adjustable spring preload and rebound damping, 300mm wheel travel |
| Rear Wheel Travel: | 114 mm / 4.5 in. | 250 mm / 9.8 in |
| Front Brakes: | Hydraulic, single disc, 292 mm dia. | Drum |
| Rear Brakes: | Hydraulic, single disc, 230 mm dia. | Drum |
| Front Tyre: | 100/80-17 MC | 3.00 -21 |
| Rear Tyre: | 130/70-17 M | 150/80 -18 |
| Trail: | 89 mm / 3.5 in. | 125 mm / 4.9 in |
| Wheelbase: | 1355 mm / 53.3 in | 1430 mm / 56.2 in |
| Ground Clearance: | 140 mm / 5.5 in | 285 mm / 11.2 in |
| Fuel Capacity: | 11.5 Litres / 3.0 US gal | 13.6 Litres / 3.5 US gal |