Vespa 125 GTR (1968-78) vs Gilera KZ 125 (1986-87)
Comparison technical specifications
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| Make: | Vespa | Gilera |
| Model: | 125 GTR | KZ 125 |
| Years: | 1968-78 | 1986-87 |
| Engine: | Two stroke, ingle cylinder | Two stroke, single cylinder, reed valve |
| Capacity: | 123.4 cc / 7.5 cub in | 124 ccc / 7.6 cu-in |
| Bore x Stroke: | 52.5 x 57 mm | 56 x 50.5 mm |
| Induction: | Disc valve | 28 Dell'Orto PHBH carburetors |
| Ignition: | Contact breaker & coil | CDI |
| Starting: | Kick start | Electric |
| Clutch: | Wet, multiplate | Multi-disc oil bath |
| Max Power: | 4.6 kW / 6.3 hp @ 5000 rpm | 29.3 hp / 21.8 kW @ 9900 rpm |
| Transmission: | 4 Speed, grip-shift, constant mesh | 6 Speed |
| Final Drive: | Direct drive | Chain |
| Frame: | Pressed sheet steel, streamlined monocoque structure | Diagonal double cradle tubular steel |
| Front Brakes: | Drum | Single 240mm disc 2 piston caliper |
| Rear Brakes: | Drum | Single 240mm disc |
| Front Tyre: | 3.5 x 10" | 100/80-16 |
| Rear Tyre: | 3.5 x 10" | 120/80-16 |
| Fuel Capacity: | 7.7 L / 2.0 US gal | |
| Consumption average: | 2 L/100 km / 50 km/l / 117 US mpg | 19.9 km/lit |
| Top Speed: | 92 km/h / 57 mph | 152.6 km/h / 95 mph |