Yamaha XS 1100 Martini (1979) vs Yamaha TDM 900A (2006-07) vs Yamaha XTZ 250 Lander (2006-08) vs Yamaha XS 650F (1979) vs Harley-Davidson Harley Davidson XL 883N Sportster Iron (2020)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha | Yamaha | Harley-Davidson |
| Model: | XS 1100 Martini | TDM 900A | XTZ 250 Lander | XS 650F | Harley Davidson XL 883N Sportster Iron |
| Years: | 1979 | 2006-07 | 2006-08 | 1979 | 2020 |
| Engine: | Four stroke transverse four cylinder, DOHC, 2 valves per cylinder. | Four stroke, parallel twin cylinder, DOHC, 5 valves per cylinder | Four stroke, single cylinder. SOHC, 2 valve | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. |
| Capacity: | 1101 cc / 67.2 cu-in | 897 cc / 54.7 cu-in | 249 cc / 15.2 cu-in | 653 cc / 39.8 cu in | 883 cc / 53.9cu in/ |
| Bore x Stroke: | 71.5 x 68.6 mm | 92 x 67.5 mm | 74.0 x 58.0mm | 75 x 74 mm | 76.2 x 96.8 mm |
| Cooling System: | Air cooled | Liquid cooled | Air /oil cooled | Air cooled | Air cooled |
| Compression Ratio: | 9.2:1 | 10.4:1 | 9.5: 1 | 8.4:1 | 9.0:1 |
| Induction: | 4x Mikuni BS 34SS Carburettor | Electronic Fuel Injection | Injection | 2 x Mikuni BS38 carburetors | Electronic sequential port fuel injection |
| Ignition: | TCI additional vacuum adjusted! / electric kick starter - Witch is separated from the engine, for emergency mounting only | TCI | TCI | Battery, induction coil | Digital CDI |
| Starting: | Electric | Electric | Electric | Electric and kick | Electric |
| Max Torque: | 9.2 kgf-m / 66.5 lb-ft @ 6500 rpm | 88.8 Nm / 9.1 kgf-m @ 6000 rpm | 21 Nm / 2.09 kgf-m @ 6500 rpm | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm | 73 Nm / 7.44 kgf-m / 53.8 ft/lb @ 3750 rpm |
| Transmission: | 5 Speed | 6 speed | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Chain | Chain | Chain | Belt |
| Front Suspension: | Telescopic fork. | Telescopic fork | 35mm telescopic fork | Telescopic forks | 39mm Fork |
| Rear Suspension: | Dual shocks Swing arm, preload adjustable | Swingarm Link-type | Swingarm w/rebound-adjustable single shock | Dual shock absorbers | Coil-over, dual-adjustable preload |
| Front Brakes: | 2x 298mm discs | 2 x 298mm discs with ABS | Single 245mm disc | Twin hydraulic discs, 267 mm | Single ∅300mm disc, 2 x ∅38mm piston calipers |
| Rear Brakes: | Single 298mm disc | Single 248mm disc with ABS | Single 203mm disc | Drum | Single ∅260mm disc, 2 x ∅38mm piston calipers |
| Front Tyre: | 3.50-19 | 120/70 ZR18 | 80/90 -21 | 3.50H-19 4PR | 100/90B19 57H |
| Rear Tyre: | 4.50-17 | 160/60 ZR17 | 120/80-18 | 4.00H-18 4PR | 150/80B16 77H |
| Fuel Capacity: | 22 Litres / 5.8 gal | 20 Litres / 5.2 US gal | 11 Litres / 2.9 US gal | 15 Litres / 4.0 US gal | 12.5 Litres / 3.3 US gal |