The Yamaha TDR 125 was a two-stroke, single-cylinder motorcycle built between 1989 and 1992, with a liquid-cooled engine that had a capacity of 124 cc. It had a 6.6:1 compression ratio and a 28mm Mikuni TM carburetor with electronic ignition. The TDR 125 had a maximum power output of 25 hp at 9500 rpm and a maximum torque of 2.1 kgf-m at 9500 rpm. It had a six-speed transmission and a chain final drive.
The front suspension consisted of 38mm telescopic forks, while the rear suspension was a monoshock with five-way adjustable preload. The front brakes were a single 282mm disc with a two-piston caliper, and the rear brakes were a single 220mm disc with a one-piston caliper. The TDR 125 had a wheelbase of 1405mm, a seat height of 850mm, and a ground clearance of 270mm. Its dry weight was 135kg, and it had an 11-liter fuel tank.
The TDR 125 had a consumption average of 23 km/lit and was able to brake from 60 to 0 km/h in 13.6 meters or from 100 to 0 km/h in 38.3 meters. Its standing quarter-mile time was 15.9 seconds with a top speed of 140 km/h. Overall, the Yamaha TDR 125 was a sporty and powerful motorcycle that was reliable and fun to ride.
Technical specifications:
Make Model: Yamaha TDR 125
| Year | 1989 – 92 |
|---|---|
| Engine | Two stroke, single cylinder |
| Capacity | 124 cc / 7.6 cu-in |
| Bore x Stroke | 56 x 50.7 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 6.6:1 |
| Induction | 28mm Mikuni TM carburetor |
| Ignition | Electronic |
| Starting | Electric |
| Max Power | 25 hp / 18.6 kW @ 9500 rpm |
| Max Torque | 2.1 kgf-m / 15.1 lb-ft @ 9500 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | 38mm Telescopic forks |
| Rear Suspension | Monoshock with 5-way adjustable preload |
| Front Brakes | Single 282mm disc 2 piston caliper, |
| Rear Brakes | Single 220mm disc 1 piston caliper. |
| Front Tyre | 100/90-18 |
| Rear Tyre | 130/80-17 |
| Wheelbase | 1405 mm / 55.3 in |
| Seat Height | 850 mm / 33.4 in |
| Ground Clearance | 270 mm / 10.6 in |
| Dry Weight | 135 kg / 297.6 lbs |
| Fuel Capacity | 11 Litres / 2.9 US gal |
| Consumption Average | 23 km/lit |
| Braking 60 – 0 / 100 – 0 | 13.6 m / 38.3 m |
| Standing 1/4 Mile | 15.9 sec /127.2 km/h |
| Top Speed | 140 km/h / 86.9 mph |
