Suzuki GSX-R 400 (1986) vs Suzuki DR 650S (2015-16) vs Suzuki Boulevard C90T (2019) vs Suzuki DR 600S / R (1988-89)
Comparison technical specifications
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| Make: | Suzuki | Suzuki | Suzuki | Suzuki |
| Model: | GSX-R 400 | DR 650S | Boulevard C90T | DR 600S / R |
| Years: | 1986 | 2015-16 | 2019 | 1988-89 |
| Engine: | Four stroke, transverse four cylinder, DOHC 4 valves per cylinder. TSCC | Four stroke, single cylinder. SOHC, 4 Valve per cylinder. | Four stroke, 54° V-twin, SOHC, 3 valves per cylinder | Four stroke, single cylinder, SOHC, 4 valves |
| Capacity: | 398 cc / 24.3 cu-in | 644 cc / 39.3 cu in | 1462 cc / 89.2 cu-in | 589 cc / 35.9 cu in |
| Bore x Stroke: | 53 x 45.2 mm | 100 x 82 mm | 96 x 101 mm | 94 x 85 mm |
| Cooling System: | Liquid cooled | Air/oil cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 11.5:1 | 9.5:1 | 9.5:1 | 8.5:1 |
| Induction: | 2 x AS27VW carburetors | Mikuni BST40 | Fuel injected | 38mm Mikuni flatside carburetor |
| Ignition: | CDI | Electronic Ignition | Digital transistorized | CDI |
| Starting: | Electric | Electric | Electric | Kick |
| Max Power: | 44 kW / 59 hp @ 11000 rpm | 32 kW / 43.5 hp / @ 6400 rpm (at rear tyre 27.9 kW / 37.4 hp @ 6500 rpm) | 49.2 kW / 66 hp @ 4800 rpm | 32 kW / 44 hp @ 6500 rpm |
| Max Torque: | 39.2 Nm / 4.0 kgf-m / 28.9 lb-ft @ 9000 rpm | 54 Nm / 5.51 kg-m / 39.8 lb-ft@ 4600 rpm | 115 Nm /11.7 kgf-m / 84.8 ft-lbs @ 2800 rpm | 49.5 Nm / 5.04 kg-m / 36.5 lb-ft @ 5000 rpm |
| Transmission: | 6 Speed, constant mesh | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain, 525 links | Shaft | Chain |
| Frame: | Aluminum angular pipe double cradle | Steel, single cradle frame | Double cradle steel frame | Semi-double cradle |
| Front Suspension: | Telescopic forks | Telescopic, leading axle, oil damped | Telescopic, coil springs, oil damped | 39 mm Kayaba forks, air adjustable |
| Rear Suspension: | Full floater swing arm, non-adjustable | Link-type, fully adjustable spring preload, gas/oil damped, adjustable compression damping | Link type, coil spring, oil damped | Single Kayaba shock, adjustable spring preload |
| Front Brakes: | 2 x Discs, 4 piston calipers | Single 280 mm disc, 2 piston caliper | Dual 300 mm discs, 4 piston caliper | Single 240mm disc |
| Rear Brakes: | Single disc, 2 piston caliper | Single 230 mm disc, 2 piston caliper | Single 180 mm disc, 2 piston caliper | 130mm Drum |
| Front Tyre: | 110/90-16 | 90/90-21 | 130/80-17M/C 65H, tubeless | 100/80-21 |
| Rear Tyre: | 140/90-18 | 120/90-17 | 200/60-16M/C 79H, tubeless | 130/80-17 |
| Dimensions: | Length 2090 mm / 82.3 in Width 710 mm / 28.0 in Height 1185 mm / 46.7 in | Length 2255 mm / 88.8 in Width 865 mm / 34.1 in Height 1195 mm / 47.0 in | Length: 2560 mm / 100.8 in Width: 990 mm / 39.0 in | Length 2215 mm / 87.2 in Width 875 mm / 34.4 in Height 1235 mm / 48.6 in |
| Wheelbase: | 1425 mm / 56.1 in | 1490 mm / 58.7 in | 1675 mm / 65.9 in | 1465 mm / 57.7 in |
| Seat Height: | 780 mm / 30.7 in | 885 mm / 34.8 in. | 720 mm / 28.3 in | 925 mm / 36.4 in |
| Fuel Capacity: | 15 Litres / 3.96 US gal / 3.3 Imp gal | 13 Liter / 3.4 US gal / 2.9 Imp gal (CA model 12 Liter / 3.2 US gal / 2.6 Imp gal) | 18 Litres / 4.8 US gal | 21 Litres / 5.5 US gal / 4.6 Imp gal |