The Yamaha RD125LC is a two-stroke, single-cylinder motorcycle with a capacity of 123 cc and a compression ratio of 6.4:1. It has a maximum power output of 20 hp at 9500 rpm and a maximum torque of 1.6 kgf-m at 9250 rpm. The bike features a six-speed transmission, chain final drive, and front and rear suspension consisting of 32mm telescopic forks and a monocross linkage with 6-way preload adjustment. The front brakes are a single 245mm disc, while the rear brakes are a 130mm drum. The motorcycle measures at a length of 1990 mm, width of 735 mm, and height of 1190 mm with a dry weight of 98 kg. It has a fuel capacity of 13 litres and a consumption average of 64 mpg. The standing 1/4 mile time is 16.7 seconds, and the top speed is 81 mph. The bike was produced from 1981-82.
Technical specifications:
Make Model: Yamaha RD / RZ 125LC
| Year | 1981 – 82 |
|---|---|
| Engine | Two stroke, single cylinder |
| Capacity | 123 cc / 7.5 cu-in |
| Bore x Stroke | 56 50 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 6.4:1 |
| Lubrication | Autolube |
| Oil Capacity | 1.1 L |
| Induction | 24mm Mikuni carburetors |
| Ignition | Hitachi CDI |
| Starting | Kick |
| Max Power | 20 hp / 15.5 kW @ 9500 rpm |
| Max Torque | 1.6 kgf-m / 16 Nm @ 9250 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | 32mm Telescopic forks |
| Rear Suspension | Monocross linkage 6-way preload adjustment |
| Front Brakes | Single 245mm disc |
| Rear Brakes | 130mm Drum |
| Front Tyre | 2.75-18-4PR |
| Rear Tyre | 3.00-18-6PR |
| Dimensions | Length 1990 mm / 78.3 in Width 735 mm / 28.9 in Height 1190 mm / 46.8 in |
| Wheelbase | 1295 mm / 50.9 in |
| Seat Height | 775 mm / 30.5 in |
| Ground Clearance | 185 mm / 7.2 in |
| Dry Weight | 98 kg / 216 lbs |
| Fuel Capacity | 13 Litres / 3.4 US gal |
| Consumption Average | 64 mpg |
| Standing 1/4 Mile | 16.7 sec |
| Top Speed | 81 mph / 130.3 km/h |
