Kawasaki KMX 125 (1994-96) vs Maico 490 Alpha 1 (1982) vs Yamaha XVS 650 V-Star Custom (2016-17) vs Aprilia SX 50 (2010-12)
Comparison technical specifications
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| Make: | Kawasaki | Maico | Yamaha | Aprilia |
| Model: | KMX 125 | 490 Alpha 1 | XVS 650 V-Star Custom | SX 50 |
| Years: | 1994-96 | 1982 | 2016-17 | 2010-12 |
| Engine: | Two stroke, single cylinder | Single cylinder, two stroke | Four stroke, 70°V-twin cylinder, SOHC, 2 valve per cylinder | Single cylinder, two stroke |
| Capacity: | 124 cc / 7.6 cu-in | 488 cc / 29.8 cub in. | 649 cc / 39.6 cu-in | 49.9 cc / 3.04 cu in |
| Bore x Stroke: | 54 х 54.4 mm | 86.5 x 83 mm | 81 x 63mm | 39.9 x 40 mm |
| Cooling System: | Liquid cooled | Air cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 7.8:1 | 12:1 | 9.0:1 | 11.5:1 |
| Ignition: | CDI | Motoplat pointless electronic | Digital TCI | Electronic CDI |
| Starting: | kcik | Kick start | Electric | Kick |
| Transmission: | 6 Speed | 5-Speed, constant mesh | 5 Speed | 6 speed |
| Final Drive: | Chain | Chain | Shaft | Chain |
| Front Suspension: | Telescopic forks | Leading axle, air/spring fork | 41mm forks | Hydraulic fork, Ø 40 mm |
| Rear Suspension: | Swing arm | Corte & Cosso reservoir single gas shock adjustable for damping and preload | Adjustable link Monocross | High strength steel swingarm, hydraulic monoshock |
| Front Brakes: | Single 230mm disc | Single leading shoe, drum 136 mm | Single 298mm disc | Single stainless steel disc, Ø 260 mm, floating caliper |
| Rear Brakes: | Single 210mm disc | Single leading shoe, drum 160 mm | 200mm Drum | Single disc, Ø 180 mm, floating caliper |
| Front Tyre: | 2.75-21 | 3.00 x 21 in., Metzeler, moto cross | 100/90-19 | 100/80 ZR17 |
| Rear Tyre: | 4.10-18 | 4.50 x 18 in., Metzeler, moto cross | 170/80-15 | 130/70 ZR17 |
| Wheelbase: | 1375 mm / 54.1 in | 1510 mm / 59.5 in. | 1610mm / 63.4 in | 1400 mm / 55.1 in |
| Seat Height: | 865 mm / 34.1 in | 960 mm / 37.7 in. | 695 mm / 27.4 in | 835 mm / 32.9 in |
| Dry-Weight: | 96 kg / 211.6 lbs | 108 kg / 237 lbs | 214 kg / 471 lbs | 98 kg / 216 lbs |
| Fuel Capacity: | 9.3 Litres / 2.4 US gal | 9.5 L / 2.5 US gal | 16 Liters / 4.2 US gal | 7 L / 1.85 US gal |