Aprilia ETX 125 Make Model. | Aprilia ETX 125 | Year | 1986 - 87 | Engine | Two stroke single cylinder | Capacity | 123.6 cc / 7.54 cu in | Bore x Stroke | 54 x 54 mm | Compression Ratio | 15.5:1 | Cooling System | Liquid cooled | Transmission | 6 Speed | Maximum Power | 13.6 kW / 18.3 hp @ 8250 rpm | Final Drive | Chain | Frame | Single steel beam cradle | Front Suspension | Hydraulic telescopic front fork, Marzocchi ?35 mm | Rear Suspension | Swingarm with single shock absorber | Front Brakes | Single disc, ?230 mm | Rear Brakes | Drum, ?125 mm | Front Tyre | 2.75-21 | Rear Tyre | 4.00-18 | Dry Weight | 113 kg / 249 lbs | Fuel Capacity | 10 L / 2.6 US gal | Top Speed | 121.5 km/h / 75.5 mph | |