Yamaha RZ 125S (1983-84) vs Honda CBF 125 Stunner (2015-)
Comparison technical specifications
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| Make: | Yamaha | Honda |
| Model: | RZ 125S | CBF 125 Stunner |
| Years: | 1983-84 | 2015- |
| Engine: | Two stroke, single cylinder | Four stroke, single cylinder, SOHC, 2 valve |
| Capacity: | 123 cc / 7.5 cu-in | 124.7 cc / 7.6 cu-in |
| Bore x Stroke: | 56 х 50 mm | 52.4 × 57.8 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 6.4:1 | 9.2:1 |
| Lubrication: | Autolube | Wet sump |
| Induction: | 24mm Mikuni carburetors | Fuel injection |
| Ignition: | Hitachi CDI | Digital CDI |
| Starting: | Kick | Electric & kick |
| Max Power: | 20 hp / 15.5 kW @ 9500 rpm | 11 hp / 8.1 kW @ 8000rpm |
| Max Torque: | 1.6 kgf-m / 16 Nm @ 9250 rpm | 11 Nm / 1.14 kg-m @ 6500rpm |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | 32mm Telescopic forks | Telescopic hydraulic fork |
| Rear Suspension: | Monocross linkage 6-way preload adjustment | 3 step spring loaded hydraulic shock absorver with recangular box type swing arm |
| Front Brakes: | Single 245mm disc | Single 130mm drum (optional 240mm disc) |
| Rear Brakes: | 130mm Drum | Single 130mm drum |
| Front Tyre: | 2.75-18-4PR | 80/100–17 |
| Rear Tyre: | 3.00-18-6PR | 130/70–17 |
| Dry Weight: | 98 kg / 216 lbs | 129 kg / 284 LBS |
| Fuel Capacity: | 13 Litres / 3.4 US gal | 10 Litres / 2.6 US gal |
| Consumption Average: | 64 mpg | 33.1 km/lit |
| Standing ¼ Mile: | 16.7 sec | 21.2 sec |
| Top Speed: | 81 mph / 130.3 km/h | 98.7 km/h |