Yamaha RD125 (1976)

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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

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