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Side-by-Side Bike Comparison · September 2026

QJ Motor Monster SRK 180 vs Yamaha FZ 25

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

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💎 Best Value

QJ Motor

QJ Motor Monster SRK 180

Engine 180 cc

Power 18.2 bhp

Mileage 35 kmpl

Brakes / ABS Dual-ch. ABS

Price in BD ৳259,999

Details

⚡ Power Leader

Yamaha

Yamaha FZ 25

Engine 250 cc

Power 20.52 bhp

Mileage 40 kmpl

Brakes / ABS Dual-Channel

Price in BD ৳399,000

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

VALUE CHAMPION #1

QJ Motor Monster SRK 180 (QJ Motor Monster SRK 180)

The Value Argument

Maximizes features per taka spent at ৳259,999. Ideal balance of equipment and accessible dealer pricing without sacrificing daily road manners.

Best for: Budget-conscious riders looking for modern styling.

POWER & HARDWARE #2

Yamaha FZ 25 (Yamaha FZ 25)

The Performance Benchmark

Delivers class-leading punch with 20.52 bhp and sharp throttle response. Backed by Dual-Channel 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: 20.52 Bhp

QJ Motor Monster SRK 180 (QJ Motor Monster SRK 180) 18.2 bhp @ 9500 rpm

Yamaha FZ 25 (Yamaha FZ 25) 20.52 bhp @ 8000 rpm

Peak Torque Delivery (Nm) Top: 20.1 Nm

QJ Motor Monster SRK 180 (QJ Motor Monster SRK 180) 15.2 Nm @ 6000 rpm

Yamaha FZ 25 (Yamaha FZ 25) 20.1 Nm @ 6000 rpm

Claimed Top Speeds

140 km/h

QJ Motor Monster SRK 180 (QJ Motor Monster SRK 180)

130 km/h

Yamaha FZ 25 (Yamaha FZ 25)

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.

QJ Motor

QJ Motor Monster SRK 180 (QJ Motor Monster SRK 180)

8.9 / 10

Performance 9.1

Comfort 8.3

Tech & Features 9.4

Fuel Economy 9.1

Value for Money 8.8

Yamaha

Yamaha FZ 25 (Yamaha FZ 25)

8.5 / 10

Performance 9.5

Comfort 8.1

Tech & Features 7.4

Fuel Economy 9.5

Value for Money 7.8

06 / Full Technical Comparison

Specification Sheet

Show Differences Only

Bike Information 11

Bike Name	QJ Motor Monster SRK 180	Yamaha FZ 25
Brand	QJ Motor	Yamaha
CC	180	250
Regular Price	259999	399000
Bike Type	Naked Sports	Naked Sports
Distributor/Seller	Speedoz Limited	ACI Motors Limited
Model Year	2025	2025
Brand Origin	China	Japan
Made In	China	India
Assemble In	Bangladesh	Bangladesh
Launched Date	2025-05-01	2025-04-11

Engine 15

Engine Type	4 Stroke, SOHC 4 Valve, liquid Cooled	4 – Stroke Single Cylinder
Displacement	174.6	249
Maximum Power	18.2 Bhp @ 9500 RPM	20.52 Bhp @ 8000 RPM
Maximum Torque	15.2 NM @ 6000 RPM	20.1 NM @ 6000 RPM
Bore	64.0 mm	74.0 mm
Stroke	55.9 mm	58.0 mm
Compression Ratio	N/A	9.8:1
Valves	2	2
Fuel Supply	EFI	Fuel Injection
No of Cylinders	1	1
Engine Cooling	Liquid Cooled	Oil Cooled
Starting Method	Electric	Electric
Engine Oil Grade	10W40	10W40
Engine Oil Capacity	1 L (Without Filter)	1.55 L (Without Filter)
Best Lube For	Mobil Racing 4T 10W40	Mobil Racing 4T 10W40

Transmission 4

Transmission Type	Manual	Manual
No of Gears	6	5
Clutch Type	Info Not Available	Wet Multiple-disc
Drive Type	Chain Drive	Chain Drive

Mileage & Top Speed 2

Mileage	35 Kmpl (Approx)	40 Kmpl (Approx)
Top Speed	140 Kmph (Approx)	130 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	N/A	Diamond
Front Suspension	Telescopic Upside-Down	Telescopic Forks
Rear Suspension	7 Step Adjustable Monoshock	7-Step Adjustable Monocross Suspension

Brakes 6

Front Brake Type	Disc Brake	Single Disc
Rear Brake Type	Disc Brake	Disc Brake
Front Brake Diameter	260 mm	282 mm
Rear Brake Diameter	220 mm	220 mm
Anti-Lock Braking System (ABS)	Dual Channel ABS	Dual-Channel
Braking System	Dual Channel ABS	Dual Channel ABS

Wheels & Tyres 4

Front Tyre Size	100/80-17	100/80-17
Rear Tyre Size	130/70-17	140/70-17
Tyre Type	Tubeless	Tubeless
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	1970 Mm	2015 Mm
Overall Width	785 Mm	775 Mm
Height	1070 Mm	1075 Mm
Ground Clearance	190 Mm	160 Mm
Weight	145 Kg	153 Kg
Fuel Tank Capacity	10 L	14L
Wheelbase	1345 Mm	1360 Mm
Seat Height	790 Mm	795 Mm

Electricals 5

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

Features 8

Speedometer	Digital	Digital
Odometer	Analog	Digital
RPM Meter	Digital	Digital
Handle Type	Pipe handle bar	Pipe handle bar
Seat Type	Single-Seat	Split-Seat
Passenger Grab Rail	Yes	Yes
Engine Kill Switch	N/A	Yes
Additional Feature	N/A	N/A