Yamaha YBR 125 Custom (2007-) vs Yamaha RD 125 (1976)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | YBR 125 Custom | RD 125 |
| Years: | 2007- | 1976 |
| Engine: | Four stroke, single cylinder, SOHC, 2 valves | Two stroke, parallel twin |
| Capacity: | 124 cc / 7.6 cu-in | 124 cc / 7.6 cu-in |
| Bore x Stroke: | 54 x 54 mm | 43 х 43 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 10.0:1 | 6.8:1 |
| Induction: | Fuel infection | 2x 18mm Teikei carburetors |
| Ignition: | CDI | Battery coil |
| Starting: | Electric & kick | Kick |
| Max Power: | 10.1 hp / 7.4 kW @ 7800 rrpm | 17 hp / 12.4 kW @ 8500 rpm |
| Max Torque: | 10 Nm @ 7400 rpm | 1.3 kgf-m @ 8000 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Steel double cradle | steel tube engine used as a stressed member |
| Front Suspension: | Telescopic forks | 28 mm telescopic forks |
| Rear Suspension: | Bottom link swingarm | Dual rear shock pre-load adjustable |
| Front Brakes: | Single 245mm disc | Single240mm disc |
| Rear Brakes: | Drum | 130 mm Drum |
| Front Tyre: | 90/90-M21 | 2.75-18 |
| Rear Tyre: | 90/90-M18 | 3.00-18 |
| Wheelbase: | 1290 mm / 51 in | 1245 mm / 49.0 in |
| Seat Height: | 780 mm / 31.0 in | 749 mm / 29.5 in |
| Wet Weight: | 106 kg / 234 lbs | 115 kg / 255 lbs |
| Fuel Capacity: | 12 Litres / 3.4 US gal | 11.5 Litres / 3.04 US gal |