BETA M4 Motard | BMW R 12 |
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engine specs | |
Type | |
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Air Cooled, Four Stroke, Single Cylinder, SOHC, 4 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 | |
349 cm3 | 1170 cm3 |
Bore X Stroke | |
3.11x2.8 in OR 79 mm | 4.0x2.9 in OR 102 mm |
Compression Ratio | |
9.5:1 | - |
Horsepower | |
25.8/6600 KW(hp)/RPM | 95/6500 KW(hp)/RPM |
Torque | |
21/6050 lb-ft/RPM OR 28/6050 Nm/RPM | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
Fuel System | |
Carburetor Mikuni BST 33 | - |
transmission specs | |
Gearbox | |
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6-speed | 6-speed |
Clutch | |
Wet multi-disc clutch | - |
Final Drive | |
Chain | Shaft |
chassis specs | |
Frame | |
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Frame iron double closed cradle | Tubular space frame in steel, engine self-supporting |
Front Suspension | |
Hydraulic fork with ΓΈ46 mm shaft | USD telescopic forks, 45 mm |
Rear Suspension | |
Monoshock with adjustable spring preload | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
Front Brake | |
Brake disc 310mm | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
Rear Brake | |
Brake disc 220mm | Single disc brake, 265 mm, 2-piston floating caliper |
dimension specs | |
Overall Length | |
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85 in OR 2159 mm | 86.6 in OR 2200 mm |
Overall Width | |
33.85 in OR 860 mm | 32.7 in OR 831 mm |
Seat Height | |
34.25 in OR 870 mm | 29.7 in OR 754 mm |
Ground Clearance | |
12 in OR 305 mm | - |
Weight | |
293 lbs OR 133 kg | 500 lbs OR 227 kg |
Fuel Capacity | |
2.6 gallons OR 9.8 L | 3.7 gallons OR 14.0 L |
Wheelbase | |
55.51 in OR 1410 mm | 59.8 in OR 1519 mm |
tyres specs | |
Front | |
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120/70x17 | 100/90-19 |
Rear | |
150/60x17 | 150/80-16 |