The Yamaha RD 125 is a motorcycle model from 1976. It has a two-stroke parallel twin engine with a capacity of 124 cc and a cooling system of air-cooled. Its compression ratio is 6.8:1, and it uses 2x 18mm Teikei carburetors for induction. The bike has a maximum power of 17 hp at 8500 rpm and a maximum torque of 1.3 kgf-m at 8000 rpm. Its transmission is 5-speed with a final drive of chain gear ratio. The frame is steel tube with the engine used as a stressed member. The bike has 28 mm telescopic forks for front suspension and dual rear shock pre-load adjustable for rear suspension. The front brake is a single 240 mm disc, and the rear brake is a 130 mm drum. The bike has 2.75-18 front and 3.00-18 rear tires with a wheelbase of 1245 mm and a seat height of 749 mm. Its wet weight is 115 kg, and it has a fuel capacity of 11.5 Litres or 3.04 US gallons.
Technical specifications:
Make Model: Yamaha RD 125
| Year | 1976 |
|---|---|
| Engine | Two stroke, parallel twin |
| Capacity | 124 cc / 7.6 cu-in |
| Bore x Stroke | 43 43 mm |
| Cooling System | Air cooled |
| Compression Ratio | 6.8:1 |
| Induction | 2x 18mm Teikei carburetors |
| Ignition | Battery coil |
| Starting | Kick |
| Max Power | 17 hp / 12.4 kW @ 8500 rpm |
| Max Torque | 1.3 kgf-m @ 8000 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Gear Ratio | (1) 34.52 (2) 19.67 (3) 14.11 (4) 11.34 (5) 9.11 |
| Frame | steel tube engine used as a stressed member |
| Front Suspension | 28 mm telescopic forks |
| Rear Suspension | Dual rear shock pre-load adjustable |
| Front Brakes | Single240mm disc |
| Rear Brakes | 130 mm Drum |
| Front Tyre | 2.75-18 |
| Rear Tyre | 3.00-18 |
| Wheelbase | 1245 mm / 49.0 in |
| Seat Height | 749 mm / 29.5 in |
| Wet Weight | 115 kg / 255 lbs |
| Fuel Capacity | 11.5 Litres / 3.04 US gal |
