URAL Arctic | BMW R 12 |
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engine specs | |
Type | |
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air-cooled, four-stroke, opposed twin cylinder, OHV, 2 valves per cylinder | Water-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder |
Displacement | |
749 cm3 | 1170 cm3 |
Bore X Stroke | |
3.1x3.1 in OR 79 mm | 4.0x2.9 in OR 102 mm |
Compression Ratio | |
8.6:1 | - |
Horsepower | |
41/5500 KW(hp)/RPM | 95/6500 KW(hp)/RPM |
Torque | |
42/4300 lb-ft/RPM OR 57/4300 Nm/RPM | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
Fuel System | |
2x32mm Keihin L22AA | - |
transmission specs | |
Gearbox | |
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4-speed, manual, reverse | 6-speed |
Clutch | |
dry, double-disc | - |
Primary Drive | |
chain | - |
Final Drive | |
shaft | Shaft |
chassis specs | |
Frame | |
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steel | Tubular space frame in steel, engine self-supporting |
Front Suspension | |
leading link with Sachs hydraulic shock absorbers | USD telescopic forks, 45 mm |
Rear Suspension | |
dual, adjustable Sachs shocks | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
Front Brake | |
full floating disc, Brembo | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
Rear Brake | |
mechanical drum | Single disc brake, 265 mm, 2-piston floating caliper |
dimension specs | |
Overall Length | |
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101.6 in OR 2581 mm | 86.6 in OR 2200 mm |
Overall Width | |
66.9 in OR 1699 mm | 32.7 in OR 831 mm |
Seat Height | |
30.9 in OR 785 mm | 29.7 in OR 754 mm |
Ground Clearance | |
5.9 in OR 150 mm | - |
Weight | |
739 lbs OR 335 kg | 500 lbs OR 227 kg |
Fuel Capacity | |
5 gallons OR 18.9 L | 3.7 gallons OR 14.0 L |
Wheelbase | |
- | 59.8 in OR 1519 mm |
tyres specs | |
Front | |
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Duro HF-308, 4.0×19 | 100/90-19 |
Rear | |
Duro HF-308, 4.0×19 | 150/80-16 |