Triumph Tiger 650 TR6R (1973) vs Honda CB 650SC Nighthawk (1982-83) vs KTM 390 Duke (2024)
Comparison technical specifications
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| Make: | Triumph | Honda | KTM |
| Model: | Tiger 650 TR6R | CB 650SC Nighthawk | 390 Duke |
| Years: | 1973 | 1982-83 | 2024 |
| Engine: | Four stroke, parallel twin cylinder, OHV | Four stroke, transverse four cylinder, SOHC, 2 valves per cylinder. | Four stroke, single cylinder, DOHC with finger followers, 4 valves |
| Capacity: | 649 cc / 39.6 cu in | 626 cc / 38.2 cu-in | 398.7 cc / 24.3 cu-in |
| Bore x Stroke: | 76 x 71.5 mm | 59.8 x 55 mm | 89 x 64 mm |
| Compression Ratio: | 9.0:1 | 9.0:1 | |
| Induction: | 30 mm Amal concentric carburetor, R930 | 4x Keihin 26mm carburetors | Bosch fuel injection |
| Starting: | Kick | Electric | Electric |
| Max Power: | 31.3 kW / 42 hp @ 6500 rpm | 50 hp / 37 kW @ 8000 | 33 kW / 44.3 hp |
| Max Torque: | 50.1 Nm / 5.1 kgf-m / 37 ft-lb @ 5500 rpm | 49 Nm / 36 lb-ft @ 6500 | 39 Nm / 28.7 lb-ft |
| Clutch: | Wet, multiplate | Wet multi-plate | PASC antihopping clutch, mechanically operated |
| Transmission: | 4-Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain 520-X Ring |
| Frame: | Welded frame with large diameter oil-containing main tube | Tubular steel full cradle | Steel trellis frame, powder coated |
| Front Suspension: | Telescopic fork, 2-way hydraulic damping | Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive | 43mm WP APEX 43 |
| Rear Suspension: | Swingarm, dual shocks, hydraulically damped, adjustable preload | Dual Showa shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping | WP APEX - Monoshock |
| Front Brakes: | Drum, 2LS, 200 mm / 8" | 2x 275mm discs 2 piston calipers | Single 320 mm disc, 4 piston radial fixed caliper |
| Rear Brakes: | Drum, 1LS, 180 mm / 7" | 180mm Drum | Single 240 mm disc, 2 piston floating caliper |
| Front Tyre: | 3.25 x 19 K70 | 3.50 -19 | |
| Rear Tyre: | 4.00 x 18 K70 | 130/90 -16 | |
| Wheelbase: | 1420 mm / 56 in | 1509 mm / 59.4 in | |
| Ground Clearance: | 178 mm / 7 in | 145 mm / 5.7 in | |
| Seat Height: | 790 mm / 31 in | 780 mm / 30.7 in | 800/820 mm / 31.5/32.3 in |
| Fuel Capacity: | 18.2 L / 4.8 US gal / 4.0 Imp gal | 13.6 Litres / 3.6 US gal |