The Vespa 125 GTR, produced from 1968 to 1978, had a two-stroke, single-cylinder engine with a capacity of 123.4cc/7.5 cub in, producing a maximum power of 4.6 kW/6.3 hp at 5000 rpm. It had a Dell’Orto SHB 16/16 carburetor, disc valve induction, and contact breaker and coil ignition. With a four-speed grip-shift, constant mesh transmission, it had a direct drive final drive. The frame was a pressed sheet steel, streamlined monocoque structure. The Vespa 125 GTR had front and rear drum brakes, and interchangeable wheels. The dimensions were 1795 mm/70.7 in in length, 710 mm/30.0 in in width, and had a wheelbase of 1220 mm/48.0 in. It weighed 90 kg/198 lbs, and had a fuel capacity of 7.7 L/2.0 US gal. With an average consumption of 2 L/100 km/50 km/l/117 US mpg, it had a top speed of 92 km/h/57 mph. The Vespa 125 GTR was available in blue, China blue, coral red, metallic moon white, and polaris grey. A total of 45,658 units were produced.
Technical specifications:
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 |
