YAMAHA XS-1 BMW R 12
engine specs
Type
Air Cooled, Four Stroke, Parallel Twin Cylinder, SOHC, 2 Valves Per CylinderWater-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder
Displacement
343 cm31170 cm3
Bore X Stroke
2.9x2.9 in OR 74 mm4.0x2.9 in OR 102 mm
Compression Ratio
8.4:1-
Horsepower
53/7200 KW(hp)/RPM95/6500 KW(hp)/RPM
Torque
39.8/6800 lb-ft/RPM OR 54/6800 Nm/RPM81/6000 lb-ft/RPM OR 110/6000 Nm/RPM
Fuel System
2xMikuni Carburetors-
transmission specs
Gearbox
5 Speed6-speed
Final Drive
ChainShaft
chassis specs
Frame
-Tubular space frame in steel, engine self-supporting
Front Suspension
Telescopic ForksUSD telescopic forks, 45 mm
Rear Suspension
Dual Shock AbsorbersAluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable
Front Brake
DrumTwin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers
Rear Brake
DrumSingle disc brake, 265 mm, 2-piston floating caliper
dimension specs
Overall Length
-86.6 in OR 2200 mm
Overall Width
-32.7 in OR 831 mm
Seat Height
-29.7 in OR 754 mm
Weight
-500 lbs OR 227 kg
Fuel Capacity
-3.7 gallons OR 14.0 L
Wheelbase
-59.8 in OR 1519 mm
tyres specs
Front
3.50-19100/90-19
Rear
4.00-18150/80-16

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