Jawa 42 Fj vs Yamaha R15 V4 - Which is Better?
Royal Enfield

Jawa 42 FJ vs Yamaha R15 V4

Choosing between the Jawa 42 FJ vs Yamaha R15 V4? BikeJunction is here to help! The 42 FJ starts at ₹ 1.84 Lakh, while the R15 V4 is priced at ₹ 1.69 Lakh (ex-showroom). You can easily compare all the required parameters for your new two-wheeler. These two-wheelers have powerful motors with good performance. Among them, the 42 FJ offers 29.62 Nm @ 6000 rpm torque. The R15 V4 gives 14.2 Nm @ 7500 rpm torque. Apart from all this, you can pick from 5 colour options for the 42 FJ and 7 for the R15 V4. you will get a more extensive comparison of Jawa 42 FJ and Yamaha R15 V4, which will definitely clear your confusion between these two-wheelers.

Jawa 42 FJ vs Yamaha R15 V4 Comparison Overview

Key Highlights42 FJR15 V4
Price₹ 1.84 Lakh₹ 1.69 Lakh
Displacement334 cc155 cc
Power28.76 bhp @ 7500 rpm18.15 bhp @ 10000 rpm
Mileage30 kmpl45 kmpl
Top Speed_140 km/h
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Engine
Max Power
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Highest power the engine/motor can produce.

28.76 bhp @ 7500 rpm 18.15 bhp @ 10000 rpm
Max Torque
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The highest twisting force the engine generates, which affects acceleration and pulling power.

29.62 Nm @ 6000 rpm 14.2 Nm @ 7500 rpm
Battery TypeN/A 12V, 4.0Ah
Compression Ratio
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Compression ratio is how much the engine squeezes air-fuel before ignition. Higher ratios mean more power; lower ratios improve durability.

11 : 1 11.6 : 1
Emission Type
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Pollution level compliance of the engine.

BS6 Phase 2 BS-VI
Engine Type
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Design and working of the two-wheeler's engine.

N/A Liquid-cooled, 4-stroke, SOHC, 4-valve
Displacement
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Engine cylinder capacity measured in cc.

334 155
Bore
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Bore is the diameter of a bike’s engine cylinder. A larger bore allows more fuel-air mix, increasing power and speed.

81 mmN/A
No Of CylindersN/A 1
Range
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The maximum distance an electric two-wheeler can travel on a full charge.

N/A 495 Km
Stroke
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Stroke is the piston’s movement inside the engine cylinder. Longer strokes give more torque, shorter strokes give more speed and higher RPM.

65 mm58 mm
Speed
Top SpeedN/A 140 Km/h
Tyres & Wheels
Tyre SizeFront: 100/90-18, 56H / Rear: 140/70-17, 66H Front : 100/80-17M/C 52P , Rear : 140/70R17M/C 66H
Wheel SizeFront: 18 inch , Rear: 17 inch Front :431.8 MM,Rear :431.8 MM
Wheels TypeSpoke N/A
Tubeless Tyre
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A tyre without an inner tube, reducing puncture risks and maintaining air longer.

Tubed Yes
Ignition
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The system that starts the engine, usually via a key, button, or smart start.

CDI N/A
Wheelbase
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The distance from the center of the front wheel to the center of the rear wheel, affecting stability, handling, and riding comfort.

1440 mm1325 mm
Radial Tyre
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A tyre with strong sidewalls and better grip, durability, and heat resistance.

N/A Yes
Front Tyre Pressure Rider23 psiN/A
Front Tyre Pressure Rider And Pillion23 psiN/A
Rear Tyre Pressure Rider28 psiN/A
Rear Tyre Pressure Rider And Pillion23 psiN/A
Brakes
Rear BrakeDISC WITH FLOATING CALIPER AND ABS Disc
Abs
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(Anti-locking Braking System) Prevents wheel locking during hard braking, improving control and safety.

N/A Dual Channel
Front BrakeDISC WITH FLOATING CALIPER AND ABS Disc
Braking TypeDual Channel ABS N/A
Front Brake Diameter320 mm282 mm
Rear Brake Diameter240 mm220 mm
Fuel
Fuel SupplyElectronic Fuel Injection Fuel Injection
Fuel TypePetrol N/A
Fuel Capacity12 L11 L
Body
Body Type
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The overall design and shape of the bike (e.g., cruiser, sports, scooter).

Cruiser Bikes Sports Bikes
Drive Type
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How power is sent to the wheels (e.g., chain, belt, shaft).

N/A Chain Drive
Frame
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The main structure holding the bike together.

Double Cradle Deltabox
Ground Clearance
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Distance between the bike’s lowest part and the ground.

178 mm170 mm
HeightN/A 1135 mm
Kerb Weight
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Bike’s weight with fuel and fluids.

194.6 Kg141 Kg
LengthN/A 1990 mm
Passenger Footrest
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A component which support foots of the passenger.

N/A Yes
Saddle Height
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Distance from the ground to the seat.

N/A 815 mm
Seat Height
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Distance from the ground to the seat.

800 mm815 mm
Total Weight
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Maximum weight the bike can carry, including riders and luggage.

184 KgN/A
WidthN/A 725 mm
Electrical Accessories
Charging Point
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A port to charge devices or the two-wheeler's battery.

N/A Yes
Mobile Connectivity
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A feature to connect your phone to the two-wheeler's system.

N/A Yes
Bluetooth Connectivity
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Wireless connection for calls, music, and navigation.

N/A Yes
Switches & Controls
Riding Modes
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Different settings (e.g., Sport, Eco, Rain) that adjust performance and power delivery.

N/A Track Mode / Street Mode
Starting
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The method to start the bike (e.g., electric start, kick start, or both).

Electric Start Electric starter
Traction Control
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A system that prevents wheel slip by adjusting power during acceleration on slippery surfaces.

N/A Yes
Meter
Display
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A screen that shows important riding information like speed, fuel, and trip details.

Digital Yes
TechometerN/A Digital
ClockN/A Yes
Clutch & Gear
Clutch
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A device that connects and disconnects the engine from the wheels for smooth gear shifts.

Assist And Slipper Clutch Wet, multiple-disc
Gear Box1 Down 5 Up 6 Speed
Transmission
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The entire system that transfers engine power to the wheels (includes clutch and gearbox).

Chain Drive Constant mesh
Lights
Head LightLED Bi-functional LED (Class D)
Turn Signal Lamp
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Flashing lights on a two-wheeler that indicate the rider's turning or lane-changing direction.

N/A LED
Led Tail Light
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Energy-efficient, bright rear light.

Yes N/A
Low Fuel Indicator
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A warning light when fuel is low.

Yes N/A
Battery
Battery Capacity
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Total energy the battery can store.

N/A 12 V/ 4 Ah
Shockers
Suspension FrontTelescopic Forks, Ø 41 mm Telescopic upside Down Fork (USD Fork)
Suspension RearTwin Shock Absorber With 5-step Adjustable Pre-load Linked-Type Monocross Suspension
Seat
Seat Type
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The design of the seat that affects comfort and seating position.

Single Split
Stepup SeatN/A N/A
Others
Mobile Application
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A companion app to monitor bike stats, location, and settings.

N/A Yes
Call Sms Alerts
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Notifies you of incoming calls or messages on the bike’s screen.

Yes N/A
OtaN/A N/A

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