Ariel 4F Square Four 600 (1932-36) vs BMW R 1200GS LC Adventure (2014)
Comparison technical specifications
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| Make: | Ariel | BMW |
| Model: | 4F Square Four 600 | R 1200GS LC Adventure |
| Years: | 1932-36 | 2014 |
| Engine: | Four stroke, parallel twin, OHC | Four stroke, two cylinder horizontally opposed Boxer, DOHC, 4 valves per cylinder, intake 40mm, outlet 34 mm |
| Capacity: | 601 cc / 36.7 cu in | 1170 cc / 71.4 cub in. |
| Bore x Stroke: | 56 x 61 mm | 101 x 73 mm |
| Cooling System: | Air cooled | Liquid / Air cooled |
| Compression Ratio: | 6.9:1 | 12.5:1 |
| Induction: | Carburetor | Throttle valve 52 mm Carburetion BMS-X Emission control Closed-loop 3-way catalytic converter |
| Starting: | Kick start | Electric |
| Max Power: | 17 kW / 23 hp @ 5600 rpm (1939 model) | 92 kW / 125 hp @ 7750 rpm |
| Transmission: | 4-Speed, Burman | 6 Speed |
| Final Drive: | Chain | Shaft |
| Frame: | Brazed-lug tubular semi-cradle construction, duplex down-tube | Tubular steel bridge frame, engine self-supporting |
| Front Suspension: | Ariel centre spring girders | BMW Motorrad Telelever; diameter 37 mm, central spring strut |
| 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 |
| Front Brakes: | Drum, 7 in | 2x 305mm Hydraulically actuated twin disc brake, BMW Motorrad Integral ABS (standard, part intergal, disengageable) |
| Rear Brakes: | Drum, 7 in | Single 275mm disc 2 piston caliper, BMW Motorrad Integral ABS (standard, part intergal, disengageable) |
| Front Rim: | 3.25 x 19 | 3.00 x 19 |
| Rear Rim: | 3.25 x 19 | 4.50 x 17 |
| Wheelbase: | 1384mm / 54.5 in | 1507 mm / 59.3 in |
| Dry Weight: | 168 kg / 370 lbs | 220 kg / 485 lbs |