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Yamaha RD 125

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Make Model

Yamaha RD 125

Year

1973

Engine

Two stroke, parallel twin

Capacity

124 cc / 7.6 cu-in
Bore x Stroke 43 х 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

150 mm Drum

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

Standing ¼ Mile  

18.2 sec

Top Speed

81 mph