KTM 640 Duke II (1998-00) vs Triumph Speed Triple (2006)
Comparison technical specifications
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| Make: | KTM | Triumph |
| Model: | 640 Duke II | Speed Triple |
| Years: | 1998-00 | 2006 |
| Engine: | Four stroke, single Cylinder. SOHC, 4 valves, engine balancer | Four stroke, transverse three cylinder. DOHC, 4 valves per cylinder |
| Capacity: | 624.6 cc / 38.1 cu in | 1050 cc / 64.07 cu-in |
| Bore x Stroke: | 101 x 78 mm | 79 x 71.4 mm |
| Compression Ratio: | 11.5:1 | 12.0:1 |
| Cooling System: | Liquid cooled | Liquid-cooled |
| Lubrication: | 2 x Eaten oil pumps | Wet sump |
| Induction: | Mikuni BST 40 carburetor | Multipoint sequential electronic fuel injection |
| Ignition: | Kokusan contactless DC-CDI ignition with advanced system | Digital inductive type |
| Starting: | Electric & kick | Electric |
| Spark Plug: | NGK DRBEA | NGK, CR9EK |
| Max Power: | 40.1 kW / 55 hp @ 7000 rpm | 94.9 Nm / 131 hp @ 9100 rpm |
| Max Torque: | 60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm | 105 Nm / 10.7 kgf-m / 78 ft-lb @ 5100 rpm |
| Clutch: | Multi-disc in oil bath | Wet, multi-plate |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain, O-ring 5/8 x 1/4" | Chain |
| Frame: | Central chrome-moly steel frame | Tubular, fabricated aluminum alloy, perimeter |
| Front Suspension: | WP - 4054 Roma Top adjuster, preload, compression and rebound adjustable | 45 mm Upside down forks with dual rate springs and adjustable preload, compression and rebound damping |
| Front Wheel Travel: | 140 mm / 5.5 in | 120 mm / 4.7 |
| Rear Suspension: | Central shock absorber WP IBS with PRO-LEVER linkage to rear- swing-arm with needle bearing | Monoshock with adjustable preload, compression and rebound damping |
| Rear Wheel Travel: | 170 mm / 6.7 in | 140 mm / 5.7 in |
| Front Brakes: | Single 320 mm disc, 4 piston caliper | 2 x 320 mm Discs, 4 piston calipers |
| Rear Brakes: | Single 220 mm disc, 1 piston caliper | Single 220 mm disc, 2 piston caliper |
| Front Tyre: | 120/70 - ZR17 58H | 120/70 ZR17 |
| Rear Tyre: | 160/60 - ZR17 69H | 190/50 ZR17 |
| Wheelbase: | 1460 mm / 57.5 in | 1429 mm / 56.3 in |
| Seat Height: | 860 mm / 33.9 in | 815 mm / 32.1 in |
| Dry Weight: | 145 kg / 320lbs | 189 kg / 416.7 lbs |
| Fuel Capacity: | 11.3 L / 3.0 US gal / 2.4 Imp gal | 18 Litres / 4.89 gal |
| Standing ¼ Mile: | 12.5 sec | 11.8 sec |
| Top Speed: | 162 km/h / 101 mph | 248.7 km/h / 154.5 in |