Vespa 125 GTR Make Model | Vespa 125 GTR | Year | 1968-78 | Production | 45 658 units | Engine | Two stroke, ingle cylinder | Capacity | 123.4 cc / 7.5 cub in | Bore x Stroke | 52.5 x 57 mm | Compression | 7.3:1 | Carburetor | Dell'Orto SHB 16/16 | Cooling | Air cooled, centrifugal fan | Fuel Mixture | 1:50 | Induction | Disc valve | Ignition | Contact breaker & coil | Starting | Kick start | Battery | 6V | Clutch | Wet, multiplate | Max Power | 4.6 kW / 6.3 hp @ 5000 rpm | Transmission | 4 Speed, grip-shift, constant mesh | Gear Ratios | 1st 15.46 / 2nd 10.79 / 3rd 7.69 / 4th 5.49:1 | Final Drive | Direct drive | Frame | Pressed sheet steel, streamlined monocoque structure | Front Brakes | Drum | Rear Brakes | Drum | Wheels | Interchangeable | Front Tyre | 3.5 x 10" | Rear Tyre | 3.5 x 10" | Dimensions | Length: 1795 mm / 70.7 in Width: 710 mm / 30.0 in | Wheelbase | 1220 mm / 48.0 in | Dry Weight | 90 kg / 198 lbs | Fuel Capacity | 7.7 L / 2.0 US gal | Consumption average | 2 L/100 km / 50 km/l / 117 US mpg | Top Speed | 92 km/h / 57 mph | Colours | Blue, China Blue, Coral Red, Metallic Moon White, Polaris Grey | Sources | Wikipedia, Vespafan.ch | |