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Harley-Davidson Fat Boy Vs Triumph Rocket 3 Vs BMW R 1250 GS Adventure comparison


Harley-Davidson Fat Boy Vs Triumph Rocket 3 Vs BMW R 1250 GS Adventure Comparison: Which Bike is Better?

Trying to figure out which of these bikes or scooters to buy? Compare the Fat Boy Vs Rocket 3 Vs R 1250 GS Adventure on carandbike to make an informed buying decision as to which bike to buy in 2021. This comparison has been carried out on the basis of prices, engine specifications, mileage, and features of these two-wheelers.

Fat Boy Vs Rocket 3 Vs R 1250 GS Adventure – Which model is Cheapest?

The ex-showroom price of the Harley-Davidson Fat Boy in New Delhi starts at ₹ 18.25 Lakh and goes up to ₹ 20.1 Lakh for the fully-loaded model. On the other hand, BMW R 1250 GS Adventure price in New Delhi of base variant starts at ₹ 22.35 Lakh Lastly, the Triumph Rocket 3 starts at ₹ 18 Lakh and goes up to ₹ 18.4 Lakh for the fully-loaded model.

SummaryHarley-Davidson Fat BoyTriumph Rocket 3BMW R 1250 GS Adventure
Price₹ 18.25 Lakh₹ 18 Lakh₹ 22.35 Lakh
Body TypeCruiserCruiserSports
Mileage15.00 Km/l13.00 Km/l21.00 Km/l
Power65.00 bhp165.00 bhp134.00 bhp
Engine1745.0 CC2458.0 CC1254.0 CC
Fuel TypePetrolPetrolPetrol

Fat Boy Vs Rocket 3 Vs R 1250 GS Adventure – Which gives Better Mileage?

As for the claimed fuel efficiency, the Harley-Davidson Fat Boy base engine returns 15 Km/l. The BMW R 1250 GS Adventure base returns 21 Km/l. The Triumph Rocket 3 basic model, on the other hand, gives 13 Km/l.

Fat Boy Vs Rocket 3 Vs R 1250 GS Adventure – Which has a Better Engine Efficiency?

In the powertrain department, the Harley-Davidson Fat Boy gets bhp Petrol engine, whereas the BMW R 1250 GS Adventure comes in bhp Petrol engine. Lastly, the Triumph Rocket 3 is offered in bhp Petrol engine.


Engine CC 1745.0 cc2458.0 cc1254.0 cc
No Of Cylinder 234
Max Power 65 bhp @ 5500 rpm165 bhp @ 6000 rpm134 bhp @ 7750 rpm
Max Torque 144 Nm @ 3000 rpm221 Nm @ 4000 rpm143 Nm @ 6250 rpm
Valves Per Cylinder 24N/A
Fuel Delivery Electronic Sequential Port Fuel Injection (ESPFI)Fuel InjectedElectronic Intake Pipe Injection
Cooling System Air CooledWater CooledAir/liquid-cooled
Starting Mechanism Self StartSelf StartElectric Start
Bore 100 110.2 mm102.5 mm
Engine Type Milwaukee-Eight 107N/AN/A
Stroke 111.185.9 mm76 mm
Compression N/A10.8:1N/A
Exhaust N/AStainless 3-into-1 headers with 3 exit silencer / CAT boxN/A
Final Drive N/AShaft, bevel boxN/A
Emission control N/AN/AClosed-loop 3-way catalytic converter, emission standard EU-4
Hubraum N/AN/A1.254 ccm
Mixture control N/AN/AElectronic intake pipe injection

Fuel Consumption

Fuel Tank Capacity 19.1 L18.0 L30.0 L
Reserve Fuel Capacity 3.3 LN/A4.0 L
Mileage 15.00 Km/l13.00 Km/l21.00 Km/l
Overall Riding Range N/AN/AN/A
CO2 emission based on WMTC N/AN/A110 g/km

Dimension and Weight

Kerb Weight 304 kg291 kg268 kg
Length 2370 mm2400 mm2270 mm
Width 990 mm889 mm980 mm
Height 1095 mm1065 mm1460 mm
Wheelbase 1665 mm1677 mm1504 mm
Ground Clearance 115 mmN/AN/A
Seat Height 670 mm773 mm910 mm
Rake N/A27.9 ºN/A
Trail N/A134.9 mmN/A


No. Of Gears 6 Gears6 Gears6 Gears
Clutch Wet MultiplateWet, Multi-plate Hydraulically Operated, Torque AssistOil Lubricated Clutch, Hydraulically Operated
Compression Ratio 10.0:1N/A12.5 : 1
Drive N/AN/AShaft Drive
Gearbox N/AN/AConstant Mesh 6-Speed Gearbox With Helical Gear Teeth
Maximum Speed N/AN/AOver 200 km/h

Chassis and Suspension

Chassis Type N/AFull Aluminium FrameN/A
Front Suspension N/AShowa 47mm Upside-down 1 1 Cartridge Front Forks, Compression And Rebound Adjuster. 120mm TravelBMW Telelever, Ø 37 Mm, Central Spring Strut
Rear Suspension N/AFully Adjustable Showa Piggyback Reservoir RSU With Remote Hydraulic Preload Adjuster, 107mm Rear Wheel Travel.Cast Aluminum Single-sided Swing Arm With BMW Paralever; WAD Strut (travel-related Damping), Spring Pre-load Hydraulically Adjustable (continuously Variable) Via Handwheel, Rebound Damping Adjustable Via Handwheel
Swingarm N/ASingle-sided, cast aluminiumN/A
Castor N/AN/A95.4 mm
Steering Head Angle N/AN/A65.1°


Front Brake Type DiscDiscsDual Disc Brake, Floating Brake Discs, 4-piston Radial Calipers
Rear Brake Type DiscDiscsSingle Disc Brake, Double-piston Floating Caliper
Front Disc/Drum Size 300 mm320 mm305 mm
Rear Disc/Drum Size 292 mm300 mm276 mm
ABS N/AN/ABMW Motorrad Integral ABS (part-integral), Disengageable

Wheel and Tyres

Wheel Size 18 inches17 inches17 inches
Wheel Type Alloy WheelsAlloy WheelCross Spoke Wheels
Front Tyre 160/60R18,70V,BW150/80 R17 V120/70 R 19
Rear Tyre 240/40R18,79V,BW240/50 R16 V170/60 R 17


Battery Maintenance FreeN/A12 V / 11.8 Ah, Maintenance-free
Alternator N/AN/AThree-Phase Alternator (510 watts nominal power)

Standard Features

Gear Indicatorticktickcross
Fuel Warning Indicatortickticktick
Fuel Gaugetickticktick
Low Oil Indicatortickticktick
Low Battery Indicatortickticktick
Pillion Seattickticktick
Pillion Grabrailcrossticktick
Engine Kill Switchtickticktick
Tripmeter TypeDigitalDigitalDigital
Tripmeter Counttickticktick
Pass Lighttickticktick
3 Riding Modes-cross-
Four Riding Modes-tick-
Hill Hold Control-tick-
LED Headlight-cross-
Testatretta DVT (Desmodromic Variable Timing)-cross-
Traction Control & EBD-cross-
ASC (Automatic Stability Control)--tick
Compact Deltabox Chassis--cross
Cutting-Edge Crossplane Engine--cross
HSC (Hill Start Control) --tick
New Lift Control System--cross
New Quick Shift System--cross
TFT Rider Information Display With Connectivity--tick
YZF-M1 Level Controllability (IMU)--cross
YZR-M1 Inspired Cowling--cross

Additonal Features

High Volume Air Intake--cross

Key Features

Competitor of Harley-Davidson Fat Boy

Competitor of Triumph Rocket 3

Competitor of BMW R 1250 GS Adventure

Disclaimer: carandbike team has taken the utmost care to ensure the accuracy of the information provided above, however, we recommend that you contact the manufacturer or your nearest dealership to confirm the details. carandbike cannot be held liable for any direct or indirect damage/loss.