Harley-Davidson Harley Davidson XL 883 Sportster (2004-05) vs Triumph 6T Thunderbird (1954-62)
Comparison technical specifications
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| Make: | Harley-Davidson | Triumph |
| Model: | Harley Davidson XL 883 Sportster | 6T Thunderbird |
| Years: | 2004-05 | 1954-62 |
| Engine: | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. | Four stroke, vertical twin, OHV |
| Capacity: | 883 cc / 53.9 cub in. | 649 cc / 40.0 cu in |
| Bore x Stroke: | 76.2 x 96.8 mm | 71 x 82 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 8.8:1 | 8.5:1 (Export), 7.0:1 (UK) |
| Induction: | Carburetion (40 mm constant velocity with enrichener and accelerator pump) Air Cleaner/Filter Oval “racetrack”; | SU type MC2 |
| Ignition: | Digital CDI | Lucas RM14 |
| Starting: | Electric | Kick |
| Clutch: | Multi-plate clutch with diaphragm spring in oil bath | Wet, multiplate |
| Transmission: | 5 Speed | 4-Speed constant mesh |
| Final Drive: | Belt | Chain, 101 links |
| Frame: | Mild steel, tubular frame; circularsections; cast junctions Swingarm Mild steel, rectangular tube sections, stamped junctions; MIG welded | Brazed lug |
| Front Suspension: | 39mm Conventional cartridge forks | Telescopic fork, hydraulic damping |
| Rear Suspension: | Dual shocks Coil-over; preload dual-adjustable | Swingarm, 2 Griling dampers |
| Front Brakes: | Single 292mm disc 2 piston calipers | SLS drum, 8 in |
| Rear Brakes: | Single 292mm disc 1 piston calipers | SLS drum, 7 in |
| Wheelbase: | 1522 mm / 60 in | 1410 mm / 55.75 in |
| Seat Height: | 711.2 mm / 28 in | 775 mm / 31 in |
| Ground Clearance: | 112 mm / 4.4 om | 127 mm / 5.0 in |
| Dry Weight: | 222 kg / 489.0 lbs | 179 kg / 395 lbs |
| Fuel Capacity: | 17 Litres / 4.5 US gal | 13.6 L / 3.6 US gal / 3.0 Imp gal (US), 18 L / 4.8 US gal / 4.0 Imp gal (UK and export) |