KTM 640 LC4 Adventure (2002-03) vs Vespa 125, P125X, PX 125, PX 125 Arcobleno/Lusso, PK125 S, GTS Super (1977-97) vs Honda CBR 1000RR Fireblade Tricolour HRC (2012) vs Yamaha SR 500 (1974-75)
Comparison technical specifications
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| Make: | KTM | Vespa | Honda | Yamaha |
| Model: | 640 LC4 Adventure | 125, P125X, PX 125, PX 125 Arcobleno/Lusso, PK125 S, GTS Super | CBR 1000RR Fireblade Tricolour HRC | SR 500 |
| Years: | 2002-03 | 1977-97 | 2012 | 1974-75 |
| Engine: | Four stroke, single Cylinder. SOHC, 4 Valve per cylinder, | Two stroke, single cylinder | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder. | Four stroke, single cylinder, SOHC, 2 valves per cylinder. |
| Capacity: | 624.6 cc / 38.1 cu in | 123.4 cc 7.5 cub in | 998 cc / 60.9 cu-in | 499 cc / 30.4 cu-in |
| Bore x Stroke: | 101 x 78 mm | 52.5 x 57.0 mm | 76 x 55.1 mm | 87 х 84 mm |
| Compression Ratio: | 11.0:1 | 9.2:1 | 12.3:1 | 9.0:1 |
| Ignition: | Contactless DC-CDI ignition with digital advanced system, KOKUSAN | Flywheel alternator, with built in H.T. coil | Computer-controlled digital transistorised with electronic advance | CDI |
| Starting: | Kick & electric | Kick start | Electric | Kick |
| Max Power: | 35.7 kW / 49 hp @ 7500 rpm | 5.9 kW / 8 hp @ 5800 rpm | 175.6 hp / 131.0 kW @ 12000 rpm | 31.5 hp / 23.5 kW @ 6500 rpm |
| Max Torque: | 52 Nm / 5.3 kgf-m / 38.4 lb-ft @ 5500 rpm | 10.5 kW / 1.07 kgf-m / 7.7 ft/lb @ 4500 rpm | 115 Nm / 11.73 kg-m @ 8500 rpm | 36.3 Nm / 26.8 lb-ft @ 5500 rpm |
| Transmission: | 5 Speed, claw shifted | 4 Speed, grip-shift, constant mesh | 6 Speed | 5 Speed |
| Final Drive: | Chain | Direct drive | #530 O-ring - sealed chain | Chain |
| Frame: | Central chrome-moly-steel frame | Pressed sheet steel, streamlined monocoque structure | Diamond; aluminium composite twin-spar | Half-duplex cradle |
| Front Suspension: | 50 mm WP upside-down forks | Helical spring and double acting hydraulic dampers | 43mm inverted HMAS cartridge-type telescopic fork with stepless preload, compression and rebound adjustment, | 35mm telescopic forks |
| Rear Suspension: | WP monoshock | Helical spring and double acting hydraulic dampers | Unit Pro-Link with gas-charged HMAS damper featuring 10-step preload and stepless compression and rebound damping adjustment, | Dual shock, 5-way adjustable spring preload. |
| Front Brakes: | Single 300mm disc, 4piston floating caliper | Drum, 125 mm | 2x 320mm discs 4 piston calipers, Combined ABS and sintered metal pads | Single 200mm disc |
| Rear Brakes: | Single 220mm disc, 1 piston floating caliper | Drum, 125 mm | Single 220mm disc, Combined ABS and sintered metal pads | 150mm drum |
| Front Tyre: | 90/90 - 21 54S Enduro 3 | 3.5 x 10" | 120/70ZR-17 | 3.50 S19 |
| Rear Tyre: | 140/80 - 18 70R Enduro 3 | 3.5 x 10" | 190/50ZR-17 | 4.00 S18 |
| Wheelbase: | 1510 mm / 59.4 in | 1250 mm / 49.2 in | 1407 mm / 55.4 in | 1405 mm / 55.3 in |
| Dry Weight: | 154 kg / 340 lbs | 112 kg / 247 lbs | 173 kg / 381.3 lbs | 158 kg / 348 lbs |
| Fuel Capacity: | 28 L / 7.4 US gal / 6.2 Imp gal | 8 L / 2.1 US gal | 17.7 Liters / 4.7 gal | 12 Litres / 3.1 US gal |