Yamaha TX 500 Sport (1975-76) vs Ducati 60 Sport / 65 Sport (1950-1953) vs Triumph America (2011) vs Yamaha TZR 125 Naked (1987-88)
Comparison technical specifications
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| Make: | Yamaha | Ducati | Triumph | Yamaha |
| Model: | TX 500 Sport | 60 Sport / 65 Sport | America | TZR 125 Naked |
| Years: | 1975-76 | 1950-1953 | 2011 | 1987-88 |
| Engine: | Four stole, parallel twin cylinder. DOHC | Four stroke, pullrod single cylinder, OHV | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder | Two stroke, single cylinder, read valve, |
| Capacity: | 498 cc / 30.5 cu-in | 65.4 cc / 3.99 cu in | 865 mm / 52.8 cu in | 124 cc / 7.6 cu-in |
| Bore x Stroke: | 73 х 59.6 mm | 44 x 43 mm | 90 x 68 mm | 56.4 x 50 mm |
| Cooling System: | Air cooled | Air cooled | Air-cooled | Liquid cooled |
| Compression Ratio: | 9.8:1 | 8:1 | 9.2:1 | 5.9:1 |
| Induction: | 2x 38mm Mikuni carburetor | Weber 16MFC or Dell'Orto MA16B | Multipoint sequential electronic fuel injection with SAI | Mikuni VM26SS carburetor |
| Ignition: | Battery and coil | 6V, 15W generator | Digital inductive type | CDI |
| Starting: | Electric & kick | Kick | Electric | Kick |
| Max Power: | 48 hp / 36.5 kW @ 8500 rpm | 1.9 kW / 2.5 hp @5500 rpm | 45 kW / 60 hp @ 6750 rpm | 26.hp / 19.3 kW @ 10200 rpm |
| Transmission: | 5 Speed | 3-Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain, X-ring | Chain |
| Front Suspension: | Telescopic fork. | Teleccopic fork | 41 mm Fork | Telescopic fork |
| Rear Suspension: | Dual shocks swing arm, preload adjustable! | Swingarm, dual shocks | Chrome spring twin shocks with adjustable preload | Monocross |
| Front Brakes: | Single 267mm disc | Drum | Single 310mm disc, 2 piston caliper, Nissen | Single disc |
| Rear Brakes: | Drum | Drum | Single 255mm disc, 2 piston caliper, Nissen | Drum |