Triumph Speed 400 vs Yamaha Aerox 155

Autocar India

Triumph Speed 400

Standard

2.40 lakh

Yamaha Aerox 155

Standard

1.45 lakh

Engine & Transmission

Fuel Type/ Propulsion

Petrol
Petrol

Engine Displacement

349 cc
155 cc

Valvetrain

4 Valves/Cyl
4 Valves/Cyl

Fueling

Electronic Fuel Injection
–

Cooling

Liquid Cooled
Liquid Cooled

Engine Type

1 cylinder
1 cylinder

Aspiration

Naturally Aspirated
–

Max Engine Power

37 Hp @ 8500 rpm
14.75 bhp @ 8000 rpm

Max Engine Torque

32 Nm @ 7000 rpm
13.9 Nm @ 6500 rpm

Bore

89 mm
58 mm

Stroke

56.1 mm
58.7 mm

Spark Plugs

1 Per Cylinder
1 Per Cylinder

Number of Gears

6
–

Slipper clutch

–

Reverse gear

N/A
–

Transmission Type

Manual
Automatic

Gearbox Type

Manual
–

Clutch

Assist And Slipper Clutch
–

Fuel & Performance

Fuel Tank Size

13 L
5.5 L

Official Fuel Economy

None kmpl
40 kmpl

Reserve Fuel Capacity

2.6 L
1.3 L

Auto Start/Stop

User Reported Mileage

27.58 kmpl
39.97 kmpl

City Fuel Economy as Tested

–
50.3 kmpl

Highway Fuel Economy as Tested

–
57.2 kmpl

Top Speed

–
115 kph

0-60kph

–
5.28 sec

0-100kph

–
18.6 sec

60-0kph

–
20.75 m

0-80kph

–
9.77 sec

0-40kph

–
2.71 sec

Chassis & Suspension

Chassis name

Hybrid Spine/Perimeter
Underbone

Chassis type

Hybrid spine/perimeter, tubular steel, bolt-on rear subframe
Underbone

Front Suspension Type

43mm upside down Big Piston forks. 140mm wheel travel
Telescopic fork

Rear Suspension Type

Gas monoshock RSU with external reservoir and pre-load adjustment. 120mm wheel travel
Unit swing

Rear Suspension Adjustability

–

Front Brakes

Disc
Disc

Rear Brakes

Disc
Drum

Wheel Type

Alloy
Alloy

Wheel Construction

Alloy
Alloy

Tyre type

Tubeless
Tubeless

Front Tyre Size

110/80 - R17
110/80 - 14

Rear Tyre Size

150/70 - R17
140/70 - 14

Radial tyres

N/A
–

Calliper Type

Front - 4 Piston, Rear - 1 Piston
Front - 1 Piston, Rear - Piston

Front Wheel Size

17 inch
14 inch

Rear Wheel Size

17 inch
14 inch

Front Brake Type

Disc
Disc

Front Brake Size

300 mm
230 mm

Rear Brake Type

Disc
Drum

Rear Brake Size

230 mm
130 mm

Dimensions

Width

829 mm
700 mm

Height

1096 mm
1150 mm

Wheelbase

1386 mm
1350 mm

Seat height

803 mm
790 mm

Kerb Weight

179 kg
126 kg

Length

–
1980 mm

Ground Clearance

–
145 mm

Safety

Combined Braking System

–

Anti-Lock Brakes (ABS)

Dual channel
Single Channel

Cornering ABS

–

Hazard lights

Side-stand indicator

–

Side-stand engine cut-off

Traction control

Wheelie control

–

Engine brake control

–

Slide-control

–

Inertial Measurement Unit (IMU)

–

Adaptive Cruise Control

–

Cornering Headlamps

–

Tyre-Pressure Monitoring System

–

Blind Spot Monitor

–

Lane keep assist

–

Features

Pass-light switch

Digital Fuel Guage

Keyless Lock

Start Type

Electric Start
Electric Start

Headlight Bulb Type

LED
LED

Headlamp Type

LED
LED

Low Oil Indicator

No. of Tripmeters

2
2

Odometer

Pillion Backrest

Electric Start

Pillion Footrest

Daytime Running Lights

Pillion Grabrail

Pillion Seat

Quickshifter

–

Tripmeter

Clock

Brake/Tail Light

LED
LED

Tripmeters Type

Digital
Digital

Shift Light

–

Antilock Braking System

Dual Channel ABS
Single Channel ABS

Turn Signal

Stand Alarm

Engine-kill switch

USB Charging Port

–

Navigation

Cruise Control

Low Battery Indicator

–

Stepped Seat

–

Underseat storage light

–

Bluetooth Connectivity

–

Battery

–
12V,6.0 Ah

Instrumentation

TFT colour Instrument cluster

–

Instrument console

Semi-Digital
Digital

Tachometer

Low Fuel Level Warning

Tachometer Type

Digital
Digital

Gear Indicator

–

Engine/Motor temperature gauge

–

Touchscreen

Trip Meter

Average Speed

Fuel gauge

–

Distance to Empty Range

–

Service due indicator

Ambient temperature gauge

–