ROYAL ENFIELD THUNDERBIRD 500 BMW R 12
engine specs
Type
Single cylinder, four stroke, Twinspark, air-cooledWater-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder
Displacement
499 cm31170 cm3
Bore X Stroke
3.3x3.5 in OR 84 mm4.0x2.9 in OR 102 mm
Compression Ratio
8.5:1-
Horsepower
27.2/5250 KW(hp)/RPM95/6500 KW(hp)/RPM
Torque
30/4000 lb-ft/RPM OR 41/4000 Nm/RPM81/6000 lb-ft/RPM OR 110/6000 Nm/RPM
Fuel System
Keihin Electronic Fuel Injection-
transmission specs
Gearbox
5-Speed Constant Mesh6-speed
Clutch
Wet multi-plate-
Final Drive
ChainShaft
chassis specs
Frame
Single downtube, using engine as stressed memberTubular space frame in steel, engine self-supporting
Front Suspension
Telescopic forks 41mm, 130mm travelUSD telescopic forks, 45 mm
Rear Suspension
Twin gas charged shock absorbers with 5-step adjustable preload, 80mm travelAluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable
Front Brake
280mm Disc, 2-Piston caliperTwin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers
Rear Brake
240mm Disc, Single piston caliperSingle disc brake, 265 mm, 2-piston floating caliper
dimension specs
Overall Length
81.1 in OR 2060 mm86.6 in OR 2200 mm
Overall Width
31.1 in OR 790 mm32.7 in OR 831 mm
Seat Height
30.5 in OR 775 mm29.7 in OR 754 mm
Weelbase
53.1 in OR 1349 mm-
Ground Clearance
5.5 in OR 140 mm-
Weight
430 lbs OR 195 kg500 lbs OR 227 kg
Fuel Capacity
5.3 gallons OR 20.1 L3.7 gallons OR 14.0 L
Wheelbase
53.1 in OR 1349 mm59.8 in OR 1519 mm
tyres specs
Front
90/90-19100/90-19
Rear
120/80-18150/80-16

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