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Side-by-Side Bike Comparison · September 2026

Yamaha Aerox 155 vs Znen T9

Technical comparison of performance curves, real-world dyno numbers, verified ratings, and full dynamic spec sheets.

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⚡ Power Leader

Yamaha

Yamaha Aerox 155

Engine 150 cc

Power 14.8 bhp

Mileage 40 kmpl

Brakes / ABS Single-Channel

Price in BD ৳525,000

Details

⚡ Power Leader

Znen

Znen T9

Engine 150 cc

Power 14.8 bhp

Mileage 40 kmpl

Brakes / ABS No

Price in BD ৳270,000

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

POWER & HARDWARE #1

Yamaha Aerox 155 (Yamaha Aerox 155)

The Performance Benchmark

Delivers class-leading punch with 14.8 bhp and sharp throttle response. Backed by Single-Channel for riders demanding confidence in high-speed and emergency scenarios.

Best for: Highway tours, enthusiast riding, emergency brake safety.

POWER & HARDWARE #2

Znen T9 (Znen T9)

The Performance Benchmark

Delivers class-leading punch with 14.8 bhp and sharp throttle response. Backed by No for riders demanding confidence in high-speed and emergency scenarios.

Best for: Highway tours, enthusiast riding, emergency brake safety.

02 / Engine Output Benchmarks

The Dyno Room

Peak Bhp & Torque Scaled

Peak Power Output (Bhp) Top: 14.8 Bhp

Yamaha Aerox 155 (Yamaha Aerox 155) 14.8 bhp @ 8000 rpm

Znen T9 (Znen T9) 14.8 bhp @ 9000 rpm

Peak Torque Delivery (Nm) Top: 13.9 Nm

Yamaha Aerox 155 (Yamaha Aerox 155) 13.9 Nm @ 6500 rpm

Znen T9 (Znen T9) 10.5 Nm @ 9000 rpm

Claimed Top Speeds

120 km/h

Yamaha Aerox 155 (Yamaha Aerox 155)

120 km/h

Znen T9 (Znen T9)

Dyno takeaway: Engine cooling hardware (liquid vs oil vs air) and gear ratios determine how long peak power can be sustained on open highway runs.

03 / Multi-Vector Scorecard

AI Analysis Engine

Rule-Based Specs Synthesizer

AI Engine Recommendation

Comparing power-to-weight, braking safety gear, real mileage data, and dealer price points across this matchup. Use the 5-point radar breakdown below to balance your budget against your daily riding style.

Yamaha

Yamaha Aerox 155 (Yamaha Aerox 155)

8.3 / 10

Performance 9.5

Comfort 8

Tech & Features 7.4

Fuel Economy 9.5

Value for Money 7.1

Znen

Znen T9 (Znen T9)

8.3 / 10

Performance 9.5

Comfort 7

Tech & Features 6.8

Fuel Economy 9.5

Value for Money 8.8

06 / Full Technical Comparison

Specification Sheet

Show Differences Only

Bike Information 11

Bike Name	Yamaha Aerox 155	Znen T9
Brand	Yamaha	Znen
CC	150	150
Regular Price	525000	270000
Bike Type	Maxi Scooter	Maxi Scooter
Distributor/Seller	ACI Motors Limited	Znen Bangladesh
Model Year	2023	N/A
Brand Origin	Japan	N/A
Made In	India	N/A
Assemble In	India	N/A
Launched Date	2023-11-28	N/A

Engine 15

Engine Type	VVA, Liquid cooled, 4-stroke, SOHC, 4-valve	4 – Stroke Single Cylinder
Displacement	155	149.6
Maximum Power	14.8 Bhp @ 8000 RPM	14.8 Bhp @ 9000 RPM
Maximum Torque	13.9 NM @ 6500 RPM	10.5 NM @ 9000 RPM
Bore	58 mm	N/A
Stroke	58.7 mm	N/A
Compression Ratio	11.6:1	10.2:1
Valves	4	N/A
Fuel Supply	Fuel Injection	Carburetor
No of Cylinders	1	N/A
Engine Cooling	Liquid Cooled	Air Cooled
Starting Method	Electric	Kick & Electric
Engine Oil Grade	10W40	10W40
Engine Oil Capacity	900 ml (Without Filter)	900 ml (Without Filter)
Best Lube For	Mobil Racing 4T 10W40	Mobil Racing 4T 10W40

Transmission 4

Transmission Type	Auto	Auto
No of Gears	N/A	N/A
Clutch Type	Dry,Centrifugal Automatic	Automatic Clutch
Drive Type	Chain Drive	Belt Drive

Mileage & Top Speed 2

Mileage	40 Kmpl (Approx)	40 Kmpl (Approx)
Top Speed	120 Kmph (Approx)	120 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	Under Bone	N/A
Front Suspension	Telescopic	Telescopic
Rear Suspension	Unit swing	Twin Shock

Brakes 6

Front Brake Type	Single Disc	Single Disc
Rear Brake Type	Drum Brake	Disc Brake
Front Brake Diameter	230 mm	N/A
Rear Brake Diameter	130 mm	N/A
Anti-Lock Braking System (ABS)	Single-Channel	No
Braking System	Single-Channel (ABS)	Disc

Wheels & Tyres 4

Front Tyre Size	110/80 R14	120/80-14
Rear Tyre Size	140/70 R14	130/60-13
Tyre Type	Tubeless	Tubeless
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	1980 mm	2150 mm
Overall Width	700 mm	785 mm
Height	1150 mm	1325 mm
Ground Clearance	145 mm	N/A
Weight	126 kg	N/A
Fuel Tank Capacity	5.5 litres	14 L
Wheelbase	1350 mm	1560 mm
Seat Height	790 mm	N/A

Electricals 5

Battery Type	mf	MF
Battery Voltage	12V 6Ah	12v
Head Light	LED	Twin
Tail Light	LED	LED
Indicators	LED	LED

Features 8

Speedometer	Digital	Info-Not-Available
Odometer	Digital	Info-Not-Available
RPM Meter	Digital	Info-Not-Available
Handle Type	Conventional	Conventional
Seat Type	Single-Seat	Split-Seat
Passenger Grab Rail	Info-Not-Available	Yes
Engine Kill Switch	Info-Not-Available	Yes
Additional Feature	VVA, Y-connect, Side stand cut off, Automatic Stop & Start System (SSS), Traction Control System, Hazard Warning, Clock	N/A