Suzuki Boulevard C109RT (2010-12) vs KTM 990 Super Duke (2006) vs Suzuki Boulevard S40 (2017-18)
Comparison technical specifications
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| Make: | Suzuki | KTM | Suzuki |
| Model: | Boulevard C109RT | 990 Super Duke | Boulevard S40 |
| Years: | 2010-12 | 2006 | 2017-18 |
| Engine: | Four stroke, 54° V-Twin | Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder | Four stroke, single cylinder, SOHC |
| Capacity: | 1786 cc / 108.8 cu. in | 999.8 cc / 60.9 cu-in | 652 cc / 39.8 cu-in |
| Bore x Stroke: | 112 x 90.5mm | 101 x 62.4mm | 94 x 94.0 mm |
| Cooling System: | Liquid cooled | Liquid cooling, | Air cooled |
| Compression Ratio: | 10.5:1 | 11.5:1 | 8.5:1 |
| Lubrication: | Semi-dry sump | Dry-sump lubrication with 2 rotor pumps | Wet sump |
| Induction: | EFI, 2 x 56 mm throttle bodies | Electronic fuel injection / electric | Mikuni BS40 |
| Ignition: | Electronic ignition (Transistorised) | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment | Transistorized |
| Starting: | Electric | Electric | Electric |
| Max Power: | 92 kW / 123 hp @ 6200 rpm | 88 kW / 120 hp @ 9000 rpm | 23 kW / 31 hp @5400 rpm |
| Max Torque: | 160 Nm / 16.3 kgf-m / 118 lb.ft @ 3200 rpm | 100 Nm @ 7000 rpm | 50 Nm / 5.1 kgf-m / 37 lb-ft @3400 rpm |
| Clutch: | Wet multi-plate type | Wet multi-disc clutch, operated hydraulically | Wet, multiple discs, cable operated |
| Transmission: | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | Shaft | Chain, X-Ring 5/8 x 5/16" | Belt |
| Front Suspension: | Telescopic, coil spring, oil damped, 49 mm | 48mm WP Upside down adjustable | Telescopic 38 mm stanchions, coil spring, oil damped |
| Rear Suspension: | Link type, coil spring, oil damped, adjustable spring preload | WP shock, fully adjustable | Twin shock, 5-way adjustable spring preload |
| Front Wheel Travel: | 130 mm / 5.1 in | 135 mm / 5.3 in | 140 mm / 5.5 in |
| Front Brakes: | 2 x 310 mm discs, 3 piston calipers | 2x 320mm discs 4 piston calipers | 265 mm Single disc |
| Rear Brakes: | Single 274mm disc, 2 piston caliper | Single 240mm disc 1 piston caliper | Drum, rod operated |
| Front Tyre: | 150/80R16 | 120/70 ZR17 | 100/90-19 57H, tube type |
| Rear Tyre: | 240/55R16 | 180/55 ZR17 | 140/80-15 67H, tube type |
| Wheelbase: | 1755 mm / 68.3 in | 1438 mm / 56.6 in | 1480 mm / 58.3 in |
| Seat Height: | 705 mm / 27.7 in | 855 mm / 33.6 in | 700 mm / 27.6 in |
| Ground Clearance: | 135 mm / 5.3 in | 165 mm / 6.4 in | 135mm / 5.3 in |
| Fuel Capacity: | 19 L / 5.0 US gal | 18.5 Litres / 4.8 gal | 10.5 Litres / 2.6 US gal |