Ariel 4F Square Four 600 (1932-36) vs BMW R 1200GS LC Adventure (2014) vs Ducati Streetfighter V4 S (2020)
Comparison technical specifications
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| Make: | Ariel | BMW | Ducati |
| Model: | 4F Square Four 600 | R 1200GS LC Adventure | Streetfighter V4 S |
| Years: | 1932-36 | 2014 | 2020 |
| Engine: | Four stroke, parallel twin, OHC | Four stroke, two cylinder horizontally opposed Boxer, DOHC, 4 valves per cylinder, intake 40mm, outlet 34 mm | Four stroke, Desmosedici Stradale 90° V4, rearward-rotating crankshaft, 4 Desmodromically actuated valves per cylinder |
| Capacity: | 601 cc / 36.7 cu in | 1170 cc / 71.4 cub in. | 1103 cc / 67.3 cu in |
| Bore x Stroke: | 56 x 61 mm | 101 x 73 mm | 81 x 53.5 mm |
| Cooling System: | Air cooled | Liquid / Air cooled | Liquid cooled |
| Compression Ratio: | 6.9:1 | 12.5:1 | 14.0:1 |
| Induction: | Carburetor | Throttle valve 52 mm Carburetion BMS-X Emission control Closed-loop 3-way catalytic converter | Electronic fuel injection system. Twin injectors per cylinder. Full ride-by-wire elliptical throttle bodies |
| Starting: | Kick start | Electric | Electric |
| Max Power: | 17 kW / 23 hp @ 5600 rpm (1939 model) | 92 kW / 125 hp @ 7750 rpm | 208 hp / 153 kW @ 12,750 rpm |
| Transmission: | 4-Speed, Burman | 6 Speed | 6 speed with Ducati Quick Shift (DQS) up/down EVO 2 |
| Final Drive: | Chain | Shaft | Chain, front sprocket 15, rear sprocket 42 |
| Frame: | Brazed-lug tubular semi-cradle construction, duplex down-tube | Tubular steel bridge frame, engine self-supporting | Aluminum alloy "Front Frame" |
| Front Suspension: | Ariel centre spring girders | BMW Motorrad Telelever; diameter 37 mm, central spring strut | Öhlins NIX30 43 mm fully adjustable fork with TiN treatment. Electronic compression and rebound damping adjustment with Öhlins Smart EC 2.0 event-based mode. |
| Rear Suspension: | Rigid, spring loaded saddle | 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 | Fully adjustable Ohlins TTX36 unit. Electronic compression and rebound damping adjustment with Öhlins Smart EC 2.0 event-based mode. Aluminium single-sided swingarm. |
| Front Brakes: | Drum, 7 in | 2x 305mm Hydraulically actuated twin disc brake, BMW Motorrad Integral ABS (standard, part intergal, disengageable) | 2 x 330 mm semi-floating discs, radially mounted Brembo Monobloc Stylema® (M4.30) 4-piston callipers with Bosch Cornering ABS EVO |
| Rear Brakes: | Drum, 7 in | Single 275mm disc 2 piston caliper, BMW Motorrad Integral ABS (standard, part intergal, disengageable) | 245 mm disc, 2-piston calliper with Bosch Cornering ABS EVO |
| Wheelbase: | 1384mm / 54.5 in | 1507 mm / 59.3 in | 1488 mm / 58.6 in |
| Dry Weight: | 168 kg / 370 lbs | 220 kg / 485 lbs | 178 kg / 392 lbs |