Gilera KZ 125 (1988-89) vs Yamaha SR 500 (1974-75)
Comparison technical specifications
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| Make: | Gilera | Yamaha |
| Model: | KZ 125 | SR 500 |
| Years: | 1988-89 | 1974-75 |
| Engine: | Two stroke, single cylinder, reed valve | Four stroke, single cylinder, SOHC, 2 valves per cylinder. |
| Capacity: | 124 ccc / 7.6 cu-in | 499 cc / 30.4 cu-in |
| Bore x Stroke: | 56 x 50.5 mm | 87 х 84 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 13.0;1 | 9.0:1 |
| Induction: | 28 Dell'Orto PHBH carburetors | 34mm Mikuni VM34SS carburetor |
| Ignition: | CDI | CDI |
| Starting: | Electric | Kick |
| Max Power: | 29.3 hp / 21.8 kW @ 9900 rpm | 31.5 hp / 23.5 kW @ 6500 rpm |
| Max Torque: | 18 Nm / 13.2 lb-ft @ 10250 rpm | 36.3 Nm / 26.8 lb-ft @ 5500 rpm |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Diagonal double cradle tubular steel | Half-duplex cradle |
| Front Suspension: | Fork traditional 36mm. Antidive adjustable | 35mm telescopic forks |
| Rear Suspension: | Hydraulic shock absorber adjustable in spring preload Court Cosso | Dual shock, 5-way adjustable spring preload. |
| Front Brakes: | Single 240mm disc 2 piston caliper | Single 200mm disc |
| Rear Brakes: | Single 240mm disc | 150mm drum |
| Front Tyre: | 100/80-16 | 3.50 S19 |
| Rear Tyre: | 120/80-16 | 4.00 S18 |
| Seat Height: | 760 mm / 29.9 in | 810 mm / 32 in |
| Wet-Weight: | 126 kg / 277.7 lbs | 173 kg / 381.4 lbs |
| Fuel Capacity: | 12 Litres / 3.1 US gal | |
| Consumption average: | 19.9 km/lit | 63 mpg |
| Standing ¼ Mile: | 15.8 sec / 133.1 km/h | 15.3 sec |
| Top Speed: | 152.6 km/h / 95 mph | 95 mph / 152.8 km/h |