Triumph Bonneville T40 vs Yamaha Aerox 155

Last Updated: October 13, 2026

Yamaha Aerox 155 price starts at Rs. 1.46 Lakh, which is Rs. 1.09 Lakh cheaper than the base variant of Triumph Bonneville T40, priced at Rs. 2.55 Lakh. On the performance front, the Bonneville T40 uses a 350cc engine producing 29 PS @ 7000 rpm and the Aerox 155 a 155cc engine producing 15 PS @ 8000 rpm. If you're deciding between the Bonneville T40 and Aerox 155, the Aerox 155 is the better pick for affordability and a lighter kerb weight, while the Bonneville T40 stands out for performance.

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Bonneville T40 vs Aerox 155 Comparison Summary

Specification Triumph Bonneville T40Yamaha Aerox 155
Ex-showroom price (base) Rs. 2.55 LakhRs. 1.46 Lakh
Mileage Not Available48.62 kmpl
Engine 350 cc155 cc
Max power 29 PS @ 7000 rpm15 PS @ 8000 rpm
Kerb weight 195 Kg126 Kg

Bonneville T40 vs Aerox 155 Key Highlights

Basic Info Triumph Bonneville T40 T4Yamaha Aerox 155 STD
Rating
1 review
156 reviews
Brand Name Triumph Yamaha
Ex-Showroom Price Rs. 2.55 Lakh Check On Road Price Rs. 1.46 Lakh Check On Road Price
Engine Type Liquid-cooled, single-cylinder, 4 valve, DOHC Liquid cooled, 4-stroke, SOHC, 4-valve
Max Power 29 PS @ 7000 rpm 15 PS @ 8000 rpm
Fuel Type Petrol Petrol
Colors
Triumph Bonneville T40 Colors
Yamaha Aerox 155 Colors
Braking Type Anti-lock Braking System Not Available
Wheel Size Front :-18 Inch,Rear :-17 Inch Front :-355.6 mm,Rear :-355.6 mm
Wheels Type (Pressed Steel/ Alloy) Spoke Alloy
ABS Dual Channel Single Channel
Starting Self Start Only Self Start Only
Speedometer Digital Digital
EMI
Rs. 6,982 @ 6% (36 months)
Rs. 4,215 @ 9.45% (36 months)
Insurance Rs. 12,978 Bonneville T40 Insurance Rs. 11,151 Aerox 155 Insurance
Brochure N/A
Download Brochure

Spark Plugs
Not Available
1 Per Cylinder
Valves (per cylinder)
4
2
Claimed Top Speed
132 kmph
111 kmph
Emission Norm Compliance
bs6
bs6.2
Flex Fuel Blend
E20
E20
Engine Type
Liquid-cooled, single-cylinder, 4 valve, DOHC
Liquid cooled, 4-stroke, SOHC, 4-valve
Engine Displacement
350 cc
155 cc
Gear Box
6 speed
V-Belt Automatic
Max Power
29 PS @ 7000 rpm
15 PS @ 8000 rpm
Max Torque
31.2 Nm @ 5500 rpm
13.9 Nm @ 6500 rpm
Bore
89.0 mm
58.0 mm
Stroke
56.1 mm
58.7 mm
Number Of Cylinders
1
1
Drive Type
Chain Drive
Belt Drive
Fuel System
Fuel Injection
Fuel Injection
Fuel Type
Petrol
Petrol
Ignition
Not Available
TCI
Compression Ratio
12.1:1
11.6:1

Front Brake
Disc
Disc
Rear Brake
Disc
Drum
Front Caliper
2 Piston
1 Piston
Rear Caliper
1 Piston
Not Available
Braking Type
Anti-lock Braking System
Not Available

Mileage (Overall)
Not Available
48.62 kmpl
0-100 Kmph (sec)
Not Available
18.51s
0-40 Kmph (sec)
Not Available
3.30s
Braking 60-0 km/h
Not Available
20.32m
City Mileage (Tested)
Not Available
48.62 kmpl
Highway Mileage (Tested)
Not Available
42.26 kmpl
Acceleration 0-40 kmph (sec)
Not Available
3.30s
Braking 80-0 km/h
Not Available
38.53m
Estimated Mileage
27.02 kmpl
Not Available
Fuel Gauge
Digital
Digital

Rear Suspension Preload Adjustment
Yes
Not Available
Rear Suspension Travel / Wheel Travel
130 mm
Not Available
Suspension-Front
43mm forks. 130mm wheel travel
Telescopic Fork
Suspension-Rear
Twin Shock with pre-load adjustment. 130mm wheel travel
Unit Swing

Front Tyre Pressure (Rider)
26 psi
29 psi
Front Tyre Pressure (Rider and Pillion)
Not Available
29 psi
Rear Tyre Pressure (Rider)
33 psi
33 psi
Rear Tyre Pressure (Rider and Pillion)
33 psi
33 psi
Tyre Size
Front :-100/90-18 Rear :-150/70 R17
Front :- 110/80-14, Rear :- 140/70-14
Wheel Size
Front :-18 Inch,Rear :-17 Inch
Front :-355.6 mm,Rear :-355.6 mm
Tyre Make
MRF
Not Available
Tyre Type
Tube
Tubeless
Radial Tyre
Yes
Not Available
Wheels Type (Pressed Steel/ Alloy)
Spoke
Alloy

Seat height
790 mm
790 mm
Fuel Tank Reserve Capacity
Not Available
1.3 L
Front Storage Compartment
Not Available
Yes
Gross Weight
379 kg
Not Available
Length*Width*Height
2120*818*1081 mm3
1980*700*1150 mm3
Wheelbase
1418 mm
1350 mm
Length
2120 mm
1980 mm
Ground Clearance
165 mm
145 mm
Height
1081 mm
1150 mm
Width
818 mm
700 mm
Fuel Tank Capacity
14.5 L
5.5 L
Kerb Weight
195 Kg
126 Kg
Tail Light
LED
LED
Front Brake Size
310 mm
230 mm
Rear Brake Size
255 mm
130 mm

Battery Type
Lead Acid
Not Available
Call/SMS Alerts
Yes
Yes
USB charging port
Yes
Yes
Music control
Yes
Not Available
Headlight
LED
LED
Battery Capacity
12V / 8AH
12V / 6AH
Pilot Lamps
Not Available
Yes
Seat Opening Switch
Not Available
Yes

Frame Type
Hybrid spine/perimeter, tubular steel
Underbone
Digital Display Type
LCD
LCD Connectivity
Malfunction Indicator
Yes
Yes
Trip Meter
Digital
Digital
Vehicle Location Tracking
Not Available
Yes
Pillion Seat
Not Available
Yes
Pillion Grab Rail
Yes
Yes
Calls and Messaging
Yes
Yes
Navigation assist
Yes
Not Available
Riding Modes
Road,Rain,Eco
Not Available
Traction Control
Yes
Yes
Kill Switch
Yes
Yes
Brightness Control
Not Available
Yes
No. of Tripmeters
Not Available
2
Rear Footpegs
Yes
Yes
Multi-function Lock
Yes
Not Available
Daytime Running Lamps
Not Available
Yes
Additional Features/Information
Not Available
VVA, Y-Connect, E20 Compatible, Oil Change Tripmeter, Hazard Warning, Smart Motor Generator System
Gear Position Indicator
Yes
Not Available
Average Fuel Economy Indicator
Not Available
Yes
ABS Type
Dual Channel
Single Channel
Navigation Type
Turn-by-turn
Not Available
Side Stand Warning
Yes
Yes
Physical Key
Yes
Not Available
Exhaust Heat Shield
Yes
Not Available
Front Footpegs
Forward-set
Not Available
Body
Metal
Not Available
Immobilizer
Yes
Not Available
ABS
Dual Channel
Single Channel
Body Type
Roadster Bikes
Not Available
Body Graphics
Not Available
Yes
Instrument Console Type
Digital
Digital
Bluetooth Connectivity
Yes
Bluetooth
Starting
Self Start Only
Self Start Only
Seat Type
Single
Split
Pass Beam Switch
Yes
Yes
Speedometer
Digital
Digital
Mobile Application
Not Available
Yes
Tachometer
Digital
Digital
Low Fuel Warning Lamp
Yes
Yes
External Fuel Filling
Not Available
Yes
Clock
Not Available
Yes
Low Oil Indicator
Not Available
Yes
Carry hook
Not Available
Yes
Underseat storage
Not Available
24.5 L
Cooling System
Liquid Cooled
Liquid Cooled
Key Shutter Lock
Not Available
Yes
Odometer
Digital
Digital
Navigation
Yes
Not Available
Service Due Indicator
Yes
Not Available
Saree Guard
Yes
Not Available
Hazard Light Switch
Yes
Yes

1st Service
Not Available
1000 Kms/30 Days
2nd Service
Not Available
4000 Kms/150 Days
3rd Service
Not Available
7000 Kms/270 Days
4th Service
Not Available
10000 Kms

Vehicle Warranty
Not Available
2 Years or 30,000 Km
Standard Warranty (Years)
Not Available
2
Standard Warranty (kilometers)
Not Available
30000

Pros and Cons

  • Positives
  • Negatives
Triumph Bonneville T40
  • Most powerful in segment at 29 PS
  • Cruise control, cornering ABS and traction control
  • 4-inch TFT with navigation
  • Liquid cooled engine
  • Low 790 mm seat height
  • Full LED lighting
Yamaha Aerox 155
  • Amazing performance
  • Incredible handling
  • Sporty looks
  • Generous under-seat storage
Triumph Bonneville T40
  • Expensive compared to rivals
  • Heavy at 195 kg
  • Tube tyres
  • Smaller service network
  • Lacks twin-cylinder character
Yamaha Aerox 155
  • Jarring ride quality
  • Brakes not powerful enough
  • No floor space
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Triumph Bonneville T40 Comparison with Similar Bikes

Latest News on Triumph Bonneville T40 and Yamaha Aerox 155

Triumph Bonneville T40 Vs Yamaha Aerox 155 FAQs

Which bike is cheaper Triumph Bonneville T40 vs Yamaha Aerox 155?
The Yamaha Aerox 155 is cheaper than Triumph Bonneville T40 by ₹1.09 Lakh.
Which bike offers better performance Triumph Bonneville T40 vs Yamaha Aerox 155?
For the T4 version, 350 cc Petrol engine of Bonneville T40 produces 29 PS @ 7000 rpm of power and 31.2 Nm @ 5500 rpm of torque. Whereas for the STD version, 155 cc Petrol engine of Aerox 155 produces 15 PS @ 8000 rpm of power and 13.9 Nm @ 6500 rpm of torque

Images of Triumph Bonneville T40 and Yamaha Aerox 155

Which one do you like more?
Bonneville T40
Bonneville T40
Aerox 155
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