BMW R 37 (1925-27) vs MV Agusta F4 750S EVO 3 (2003) vs Yamaha FZR 400RR (1991-95) vs Yamaha RS 100 (1978-79) vs Suzuki Boulevard C50T (2011-12) vs Harley-Davidson Harley Davidson FLS Softail Slim (2016-17) vs BMW R 1200GS LC Iconic Limited Edition (2016) vs Suzuki GSX 250E (1980)
Comparison technical specifications
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| Make: | BMW | MV Agusta | Yamaha | Yamaha | Suzuki | Harley-Davidson | BMW | Suzuki |
| Model: | R 37 | F4 750S EVO 3 | FZR 400RR | RS 100 | Boulevard C50T | Harley Davidson FLS Softail Slim | R 1200GS LC Iconic Limited Edition | GSX 250E |
| Years: | 1925-27 | 2003 | 1991-95 | 1978-79 | 2011-12 | 2016-17 | 2016 | 1980 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated, OHV | Four stroke, transverse four cylinder. DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Two stoke, torque induction, single | Four stroke, 45° V-Twin | Four stroke, Twin Cam 103B Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, DOHC, 4 valves per cylinder, Intake 40mm, outlet 34 mm | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 494 cc / 30.1 cu in. | 749.4 cc / 45.7 cu-in | 399 cc / 24.3 cu-in | 97 cc / 5.9 cu-in | 805cc / 49.1 cu-in | 1690 cc / 103.1 cub in. | 1170 cc / 71.4 cub in | 249 cc / 15.2 cu in |
| Bore x Stroke: | 68 x 68 mm | 73.8 x 43.8 mm | 56 x 40.5 mm | 52 x 45.6 mm | 83 x 74.4 mm | 98.4 x 111.1 mm | 101 x 73 mm | 60 х 44.2 mm |
| Compression Ratio: | 6.2:1 | 12.0:1 | 12.2:1 | 7.0 : 1 | 9.4:1 | 9.6:1 | 12.5:1 | 10.5:1 |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled | Air cooled | Liquid cooled | Air-cooled | Liquid / Air cooled | Air cooled |
| Induction: | 1 x BMW Spezial three valve ∅26 mm | Fuel Injection | Carburetor | VM20SH carburetor | Mikuni BDSR34 | Electronic Sequential Port Fuel Injection (ESPFI) | Throttle valve: 52 mm Carburetion: BMS-X Emission control: Closed-loop 3-way catalytic converter | 2 x 30mm Mikuni BS30SS carburetors |
| Ignition: | Bosch magneto ignition | Multipoint electronic | Analogue CDI (Capacitive Discharge Ign.) | Magneto, CB/coil | Electronic | Electronic | BMS-K | Electronic |
| Front Suspension: | Twin cantilever spring | Upside-down telescopic hydraulic fork with rebound-compression damping and spring preload adjustment 49mm diameter | 41mm Telescopic forks | Telescopic forks | Telescopic forks, coil spring oil damping | 41.3 mm telescopic, “beer can” covers | BMW Motorrad Telelever; stanchion 37 mm, central spring strut | Telescopic forks |
| Rear Suspension: | Rigid, spring loaded saddle | Progressive, with single sided swingarm, single shock absorber with rebound-compression damping and spring preload adjustment | Monoshock single shock preload adjustable. | Dual shocks | Link-type single shock, 7-way adjustable preload | Hidden, horizontal-mounted, coil-over | Cast aluminium single-sided swing arm with BMW Motorrad Paralever; WAD strut (travel-related damping), spring preload hydraulically adjustable (continuously variable) at handwheel, rebound damping adjustable at handwheel | Swinging arm, dual dampers, 5-way spring preload |
| Front Brakes: | ∅150mm Drum | 2x 310mm discs 6 piston calipers | 2x 298mm discs 2 piston calipers | Drum | Single disc, 2 piston caliper | Single 292 mm discs, 4 piston caliper | 2x 305mm Hydraulically actuated twin disc brake, BMW Motorrad Integral ABS (standard, part intergal, disengageable) | Single 275mm disc |
| Rear Brakes: | Block brake | Single 210mm disc 4 piston caliper | Single 210mm disc 2 piston caliper- | Drum | Drum | Single 292 mm disc, 2 piston caliper | Single 275mm disc, 2 piston caliper, BMW Motorrad Integral ABS (standard, part intergal, disengageable) | Drum |
| Front Tyre: | 26 x 3.00" | 120/65 ZR17 | 120/60 VR17 | 2.75-18 | 130/90-16M/C 67H, tube type | MT90B16 72H | 120/70 R19 | 3.60-18 |
| Rear Tyre: | 26 x 3.00" | 190/50 ZR17 | 160/60 VR17 | 3.00-18 | 170/80-15M/C 77H, tube type | MU85B16 77H | 170/60 R 17 | 4.10-18 |
| Fuel Capacity: | 14 liters / 3.6 USgal | 21 Litres / 5.8 US gal | 15 Litres / 3.9 gal | 10 Litres / 2.6 US gal | 15.5 Litres / 4.1 US gal | 18.9 Litres / 5.0 US gal | 20 Liters / 5.3 US gal | 12 Litres / 3.2 US gal / 2.6 Imp gal |