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.
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
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