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R18
BMW R18 vs Jawa 42 Bobber vs Ampere Primus




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  • Primus Standard

  • R18 Standard

  • 42 Bobber Mystic Copper

Power & Performance
Fuel Type Electric Petrol Petrol
Max Power 4,000 W 89.84 bhp @ 4750 rpm 29.92 bhp
Max Torque -- 158 Nm @ 3000 rpm 32.74 Nm
Emission Standard -- BS6 BS6
Cylinders -- 2 1
Bore-- 107.1 mm 81 mm
Valves Per Cylinder -- 4 4
Stroke -- 100 mm 65 mm
Displacement(cc) -- 1802 334
Spark Plugs -- 1 Per Cylinder 1 Per Cylinder
Ignition -- Electric CDI
Compression Ratio -- 9.6 :1 11:1
Cooling System -- Air/Oil Cooled Liquid Cooled
Transmission Automatic 6 Speed Manual 6 Speed Manual
Transmission Type -- Shaft Drive Chain Drive
Gear Shifting Pattern -- 1 Down 5 Up 1 Down 5 Up
Clutch -- Single-disk dry clutch Wet Multiplate
Fuel Delivery System -- Fuel Injection Electronic Fuel Injection
Fuel Tank Capacity -- 16 litres 12.5 litres
Reserve Fuel Capacity -- 4 litres 2.2 litres
Riding Range 107 Km 272 Km 420 Km
Mileage Owner Reported -- -- 30 kmpl
Top Speed 77 Kmph 180 Kmph 130 Kmph
Company Claimed Mileage -- 17 kmpl 30 kmpl
Wheels & Suspension +
Braking System CBS Dual Channel ABS Dual Channel ABS
Front Brake Type Drum Disc Disc
Front Brake Size -- 300 mm 280 mm
Rear Brake Type Drum Disc Disc
Rear Brake Size -- 300 mm 240 mm
Calliper Type No Front - 4 Piston Rear - 4 Piston Caliper Floating Caliper
Wheel Type Alloy Spoke Spoke
Front Wheel Size 12 inch 19 inch 18 inch
Rear Wheel Size 12 inch 19 inch 17 inch
Front Tyre Size -- 120/70 R 19 100/90 - 18
Rear Tyre Size -- 180/65 B16 140/70 - 17
Tyre Type Tubeless Tubeless Tubed
Radial Tyres No Yes No
Front Tyre Pressure (Rider) -- 42 psi 23 psi
Rear Tyre Pressure (Rider) -- 46 psi 28 psi
Front Tyre Pressure (Rider & Pillion) -- 42 psi 23 psi
Rear Tyre Pressure (Rider & Pillion) -- 46 psi 28 psi
Front Suspension Telescopic Telescopic fork Telescopic Fork
Rear Suspension Dual Shocker Steel swinging fork with central shock strut Mono Shock Absorber, Gas filled with 7 Step Adjustable Preload
Dimensions +
Kerb Weight 130 kg 345 kg 185 kg
Overall Length 1,912 mm 2440 mm 2122 mm
Overall Width 705 mm 964 mm NA
Overall Height 1,133 mm 1232 mm 1165 mm
Wheelbase 1,400 mm 1731 mm 1485 mm
Ground Clearance 150 mm --
Seat Height -- 690 mm 740 mm
Chassis Type Underbone Double-cradle steel frame with screwed-on underbeams Double cradle Tubular Frame
Features +
Odometer Digital Digital Digital
DRLs (Daytime running lights) Yes Yes --
Mobile App Connectivity Yes No No
GPS & Navigation Yes No No
USB charging port Yes No No
Front storage box Yes No No
Under seat storage 22 ltr No No
AHO (Automatic Headlight On) -- Yes Yes
Speedometer Digital Analogue Digital
Fuel Guage -- Yes Yes
Tachometer No Digital --
Stand Alarm Yes No --
No. of Tripmeters 1 2 1
Tripmeter Type Digital Digital Digital
Low Fuel Indicator -- Yes Yes
Low Oil Indicator -- Yes Yes
Low Battery Indicator Yes No Yes
Pillion Seat Yes No No
Start Type Electric Start Electric Start Electric Start
Shift Light No Yes --
Clock Yes Yes Yes
Electric System -- Permanent magnet generator 600 W (nominal capacity) --
Battery -- 12 V / 26 Ah maintenance-free 10 A
Headlight Type LED LED Head Lamp LED
Brake/Tail Light Halogen Bulb LED Tail Lamp LED
Turn Signal Halogen Bulb Yes LED
Pass Light Yes Yes Yes
Additional Features Drive Mode Riding Modes LCD Screen
Manufacturer Warranty 3 Year 2 Year
Battery Charging Time 5 Hrs -- --
Rated Power 3400 W -- --
Fast Charging Time Optional -- --
Carrying Capacity 150 Kg -- --
Battery Capacity 3 kWh -- --
Battery Type Lithium-ion -- --
Motor Type PMS Motor -- --
Charger Output 51.2V, 15A -- --
Regenerative Breaking No -- --
Reverse Mode Yes -- --
Touch Screen Display No -- --
Central Locking System No -- --
Artificial Sound No -- --
Parking Assist No -- --
Hill Assist No -- --
Anti Theft System No -- --
Geo Fencing No -- --
Start Stop Button Yes -- --
Rating +
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Colors +
Colors
Havelock Blue
Himalayan White
Royal Orange
Buck Black
Black Storm Metallic
Classic chrome
First Edition
Mineral white metallic
Gravity Blue Metallic
Black Storm Metallic (Transcontinental)
Galaxy dust metallic, Titan silver 2 metallic
Manhattan metallic matt
Jasper Red
Moonstone White
Mystic Copper
Black Mirror

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