YAMAHA SZR 660 | BMW R 12 |
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engine specs | |
Type | |
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Liquid Cooled, Four Stroke, Single Cylinder, SOHC, 5 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 | |
659 cm3 | 1170 cm3 |
Bore X Stroke | |
3.93x3.30 in OR 100 mm | 4.0x2.9 in OR 102 mm |
Compression Ratio | |
9.2:1 | - |
Horsepower | |
48/6500 KW(hp)/RPM | 95/6500 KW(hp)/RPM |
Torque | |
41/5500 lb-ft/RPM OR 56/5500 Nm/RPM | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
Fuel System | |
Carburetor | - |
transmission specs | |
Gearbox | |
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5-Speed | 6-speed |
Clutch | |
Wet multi-plate | - |
Final Drive | |
Chain | Shaft |
chassis specs | |
Frame | |
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- | Tubular space frame in steel, engine self-supporting |
Front Suspension | |
Telescopic Forks | USD telescopic forks, 45 mm |
Rear Suspension | |
Monoshock | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
Front Brake | |
Single 320 Mm Disc 4 Piston Caliper | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
Rear Brake | |
Single 210mm Disc 2 Piston Caliper | Single disc brake, 265 mm, 2-piston floating caliper |
dimension specs | |
Overall Length | |
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80.3 in OR 2040 mm | 86.6 in OR 2200 mm |
Overall Width | |
29.1 in OR 739 mm | 32.7 in OR 831 mm |
Seat Height | |
30.3 in OR 770 mm | 29.7 in OR 754 mm |
Weight | |
375 lbs OR 170 kg | 500 lbs OR 227 kg |
Fuel Capacity | |
3.7 gallons OR 14.0 L | 3.7 gallons OR 14.0 L |
Wheelbase | |
- | 59.8 in OR 1519 mm |
tyres specs | |
Front | |
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110/70-17 | 100/90-19 |
Rear | |
150/60-17 | 150/80-16 |