KTM 640 LC4 Supercomp (1999) vs Yamaha WR 250F (2022) vs Yamaha FJ-09 / MT-09 Tracer / Tracer 900 (2015-16)
Comparison technical specifications
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| Make: | KTM | Yamaha | Yamaha |
| Model: | 640 LC4 Supercomp | WR 250F | FJ-09 / MT-09 Tracer / Tracer 900 |
| Years: | 1999 | 2022 | 2015-16 |
| Engine: | Four stroke, single Cylinder. SOHC, 4 valves, engine balancer | Four stroke, single cylinder, DOHC, 4 valve Titanium | Four stroke, transverse three cylinder, DOHC, 12 Valve |
| Capacity: | 624.6 cc / 38.1 cu in | 249 cc / 15.2 cu-in | 847 cc / 51.6 cu-in |
| Bore x Stroke: | 101 x 78 mm | 77 x 53.6 mm | 78 x 59.1 mm |
| Compression Ratio: | 11.5:1 | 13.8:1 | 11.5 :1 |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled |
| Lubrication: | 2 x Eaten oil pumps | Wet sump | Wet sump |
| Induction: | Mikuni BST 40 carburetor | Fuel Injection | Electronic Fuel Injection |
| Ignition: | Kokusan contactless DC-CDI ignition with advanced system | TCI: Transistor Controlled Ignition | Transistorized coil ignition |
| Starting: | Electric & kick | Electric / Kick | Electric |
| Clutch: | Multi-disc in oil bath | Wet, multiple disc | Wet, multiple-disc |
| Transmission: | 5 Speed | Synchronized, 6 speed | 6 Speed |
| Final Drive: | Chain, O-ring 5/8 x 1/4" | Chain | Chain |
| Frame: | Central chrome-moly steel frame | Semi-double cradle | Diamond frame |
| Front Suspension: | White Power – Up Side Down 4357 MXMA fork | Inverted fork, adjustable | 41mm fork; adjustable preload and rebound damping |
| Front Wheel Travel: | 275 mm / 10.8 in | 310 mm / 12.2 in | 137 mm / 5.4 in |
| Rear Suspension: | Central shock absorber (WP BAVP3612) with PRO-LEVER linkage to rear- swing-arm with needle bearing | Swing Arm, Arm Link Suspension | Rear Single shock; adjustable preload and rebound damping |
| Rear Wheel Travel: | 300 mm / 11.8 in | 317 mm / 12.4 in | 130 mm / 5.1 in |
| Front Brakes: | Single 300 mm disc, 4 piston caliper | Single 270mm floating wave disc 2 piston caliper | 2x 298mm discs |
| Rear Brakes: | Single 220 mm disc, 1 piston caliper | Single 245mm disc 1 piston caliper | Single 245mm disc |
| Front Tyre: | 90/90 - 21 | 90/90-21 54M | 120/70-ZR17M/C |
| Rear Tyre: | 130/80 - 18 | 130/90-18 69M | 180/55-ZR17M/C |
| Wheelbase: | 1510 mm / 59.4 in | 1480 mm / 58.2 in | 1440 mm / 56.7 in |
| Ground Clearance: | 310mm / 12.2 in | 320 mm / 12.5 in | 135 mm / 5.3 in |
| Seat Height: | 925 mm / 36.4 in | 955 mm / 37.5 in | 845 mm - 860 mm / 33.3 in - 33.9 in |
| Fuel Capacity: | 11 L / 2.9 US gal / 2.3 Imp gal | 7.9 Litres / 2.1 gal | 18 Litres / 4.8 US gal |