Moto-Data

Triumph 6T Thunderbird (1963-66) vs Kawasaki GPZ 305 (1984-)

Comparison technical specifications


Add bike
1963 Triumph 6T Thunderbird
Remove bike
1984 Kawasaki GPZ 305
Remove bike
Make: Triumph Kawasaki
Model: 6T Thunderbird GPZ 305
Years: 1963-66 1984-
Engine: Four stroke, vertical twin, OHV Four stroke Parallel twin, SOHC, 2 valves per cylinder
Capacity: 649 cc / 40.0 cu in 306 cc / 18.7 cu-in
Bore x Stroke: 71 x 82 mm 61.0 x 52.4 mm
Cooling System: Air cooled Air cooled
Compression Ratio: 8.5:1 9.7:1
Induction: Amal Monobloc 2x 32mm Keihin CVi carburetors
Starting: Kick Electric
Max Power: 31 kW / 42 hp @ 6500 rpm 19.9 kW / 26.6 hp @ 10000 rpm
Clutch: Wet, multiplate Wet clutch
Transmission: 4-Speed constant mesh 6 Speed
Final Drive: Chain Belt
Front Suspension: Telescopic fork, 2 way hydraulic damping Telescopic forks
Rear Suspension: Swingarm, 2 hydraulic dampers Swing arm
Front Brakes: SLS drum, 8 in 2x disc
Rear Brakes: SLS drum, 7 in Drum
Wheelbase: 1384 mm / 54.5 in 1355 mm / 53.3 in
Seat Height: 825.5 mm / 32.5 in 784 mm / 30.8 in
Dry Weight: 165 kg / 363 lbs 147 kg / 324 lbs