Aprilia RX 125 Make Model. | Aprilia RX 125 | Year | 1985 - 87 | Engine | Single cylinder, two stroke | Capacity | 124.8 cc / 7.6 cu in | Bore x Stroke | 54 x 54.5 mm | Compression Ratio | 11.5:1 | Cooling System | Liquid cooled | Starting | Electric and kick | Maximum Power | 24.8 kW / 33.3 hp @ 10750 rpm | Transmission | 6 Speed | Final Drive | Chain | Front Suspension | Hydraulic telescopic fork | Rear Suspension | Swingarm with single shock absorber | Front Brakes | Single disc | Rear Brakes | Drum | Front Tyre | 3.00-21 | Rear Tyre | 4.00-18 | Dry Weight | 91 kg / 201 lbs | Fuel Capacity | 8.5 L / 2.2 US gal | Top Speed | 130 km/h / 80.8 mph | |