Yamaha YZF-R 15 V4.0 (2024) vs Yamaha XS 1100SF Special (1979)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | YZF-R 15 V4.0 | XS 1100SF Special |
| Years: | 2024 | 1979 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve with variable valve actuation | Four stroke transverse four cylinder, DOHC, 2 valves per cylinder. |
| Capacity: | 155.1 cc / 9.14 cu-in | 1101 cc / 67.2 cu-in |
| Bore x Stroke: | 58.0 ? 58.7 mm | 71.5 x 68.6 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 11.6:1 | 9.2:1 |
| Induction: | Fuel Injection | 4x Mikuni BS 34SS Carburettor |
| Lubrication: | Wet sump | Wet sump |
| Ignition: | TCI | TCI additional vacuum adjusted! / electric kick starter - Witch is separated from the engine, for emergency mounting only |
| Starting: | Electric | Electric |
| Max Power: | 13.5 kW / 18.4 hp @ 10000 rpm | 95 hp / 70.8 kW @ 8500 rpm |
| Max Torque: | 14.2 Nm / 10.5 lb-ft @ 7800 rpm | 9.2 kgf-m / 66.5 lb-ft @ 6500 rpm |
| Clutch: | Wet Multiple-disc | Wet, multi-disc (8 drive plates, 7 driven plates) |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Shaft |
| Front Suspension: | Up-sidedown Telescopic fork | Telescopic fork. |
| Front Wheel Travel: | 130 mm / 5.1 in | 175 mm / 6.8 in |
| Rear Suspension: | Aluminum swingarm with monoshock | Dual shocks Swing arm, preload adjustable |
| Rear Wheel Travel: | 118 mm / 4.6 in | 80 mm / 3.1 in |
| Front Brakes: | Single 282mm disc 2 piston caliper | 2x 298mm discs |
| Rear Brakes: | Single 220mm disc 1 piston caliper | Single 298mm disc |
| Front Tyre: | 100/80 -17M/C 52P | 3.50-19 |
| Rear Tyre: | 140/70 -R17M/C 66H | 4.50-16 |
| Trail: | 98 mm / 3.8 in | 130 mm / 5.1 in |
| Wet Weight: | 141 kg / 311 lbs | 258 kg / 568.7 lbs |
| Fuel Capacity: | 11 Litres / 2.9 US gal | 15 Litres / 3.9 US gal |