Triumph TR65 Thunderbird (1982-83)

The Triumph TR65 Thunderbird motorcycle was manufactured in 1982-83 and had a four stroke, parallel twin cylinder, OHV engine with a capacity of 649 cc / 39.6 cu in. It had a single 30 mm Amal carburetor for induction and was kick-started. The maximum power output was 31.3 kW / 42 hp @ 6500 rpm and the maximum torque was 50.1 Nm / 5.1 kgf-m / 37 ft-lb @ 5500 rpm. It had a 5-speed transmission and a chain final drive. The front suspension was a telescopic fork, while the rear suspension was dual Girling shocks with 5-way preload adjustment. The front brakes were a single 250 mm disc and the rear brakes were a 178 mm drum. The front tire was 3.25-19 and the rear tire was 4.00-18. The wet weight of the motorcycle was 185 kg / 408 lbs and the dimensions were length: 2220 mm / 87.4 in, wheelbase: 1422 mm / 60.0 in, and seat height: 787 mm / 31.0 in. The fuel capacity was 18.2 L / 4.8 US gal / 4.0 Imp gal and the average consumption was 5.2 L/100 km / 45 US mpg / 54 Imp mpg.

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Technical specifications:

Make Model: Triumph TR65 Thunderbird

Year: 1982 – 83

Engine: Four stroke, parallel twin cylinder, OHV

Capacity: 649 cc / 39.6 cu in

Bore x Stroke: 76 x 71.5 mm

Compression Ratio: 8.6:1

Cooling System: Air cooled

Induction: Single 30 mm Amal carburetor

Starting: Kick

Max Power: 31.3 kW / 42 hp @ 6500 rpm

Max Torque: 50.1 Nm / 5.1 kgf-m / 37 ft-lb @ 5500 rpm

Transmission: 5 Speed

Final Drive: Chain

Front Suspension: Telescopic fork

Rear Suspension: Dual Girling shocks, 5-way preload adjustment

Front Brakes: Single 250 mm disc

Rear Brakes: 178 mm Drum

Front Tyre: 3.25-19

Rear Tyre: 4.00-18

Wet Weight: 185 kg / 408 lbs

Dimensions: Length: 2220 mm / 87.4 in

Wheelbase: 1422 mm / 60.0 in

Seat Height: 787 mm / 31.0 in

Fuel Capacity: 18.2 L / 4.8 US gal / 4.0 Imp gal

Consumption Average: 5.2 L/100 km / 45 US mpg / 54 Imp mpg