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Side-by-Side Bike Comparison · September 2026

Lifan KP 165 vs Roadmaster Rex

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

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⚡ Power Leader

LIFAN

Lifan KP 165

Engine 160 cc

Power 14 bhp

Mileage 40 kmpl

Brakes / ABS No

Price in BD ৳190,000

Details

💎 Best Value

Roadmaster

Roadmaster Rex

Engine 80 cc

Power 6 bhp

Mileage 60 kmpl

Brakes / ABS N/A

Price in BD ৳70,900

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

POWER & HARDWARE #1

Lifan KP 165 (Lifan KP 165)

The Performance Benchmark

Delivers class-leading punch with 14 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.

VALUE CHAMPION #2

Roadmaster Rex (Roadmaster Rex)

The Value Argument

Maximizes features per taka spent at ৳70,900. Ideal balance of equipment and accessible dealer pricing without sacrificing daily road manners.

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

02 / Engine Output Benchmarks

The Dyno Room

Peak Bhp & Torque Scaled

Peak Power Output (Bhp) Top: 14 Bhp

Lifan KP 165 (Lifan KP 165) 14 bhp @ 7000 rpm

Roadmaster Rex (Roadmaster Rex) 6 bhp @ 8000 rpm

Peak Torque Delivery (Nm) Top: 13 Nm

Lifan KP 165 (Lifan KP 165) 13 Nm @ 6500 rpm

Roadmaster Rex (Roadmaster Rex) 0 Nm

Claimed Top Speeds

115 km/h

Lifan KP 165 (Lifan KP 165)

80 km/h

Roadmaster Rex (Roadmaster Rex)

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.

LIFAN

Lifan KP 165 (Lifan KP 165)

7.5 / 10

Performance 9.5

Comfort 6.5

Tech & Features 6.8

Fuel Economy 8.3

Value for Money 6.5

Roadmaster

Roadmaster Rex (Roadmaster Rex)

8.2 / 10

Performance 7.5

Comfort 8.5

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	Lifan KP 165	Roadmaster Rex
Brand	Lifan	Roadmaster
CC	160	80
Regular Price	190000	70900
Bike Type	Standard	Commuter
Distributor/Seller	Rasel Industries Ltd	Roadmaster Motors LTD
Model Year	N/A	N/A
Brand Origin	China	N/A
Made In	China	N/A
Assemble In	Bangladesh	N/A
Launched Date	N/A	N/A

Engine 15

Engine Type	4 stroke, single cylinder, air cooled	4 – Stroke Single Cylinder
Displacement	165	79
Maximum Power	14 Bhp @ 7000 RPM	6 Bhp @ 8000 RPM
Maximum Torque	13 NM @ 6500 RPM	0 NM @ 0 RPM
Bore	62 mm	N/A
Stroke	57.8 mm	N/A
Compression Ratio	9.3:1	N/A
Valves	2	N/A
Fuel Supply	Carburetor	Carburetor
No of Cylinders	1	1
Engine Cooling	Air Cooled	Air Cooled
Starting Method	Electric	Kick & Electric
Engine Oil Grade	N/A	N/A
Engine Oil Capacity	N/A	N/A
Best Lube For	N/A	N/A

Transmission 4

Transmission Type	Manual	Manual
No of Gears	5	4
Clutch Type	Multiplate Wet Clutch	Wet multi-disc clutc
Drive Type	N/A	N/A

Mileage & Top Speed 2

Mileage	40 Kmpl (Approx)	60 Kmpl (Approx)
Top Speed	115 Kmph (Approx)	80 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	N/A	N/A
Front Suspension	USD (Up Side Down) Suspension	Telescopic
Rear Suspension	Monoshock	Twin-Spring loaded

Brakes 6

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

Wheels & Tyres 4

Front Tyre Size	100/80 – 17	2.50-17
Rear Tyre Size	110/80 – 17	2.75-17
Tyre Type	Tubeless	Tubetyre
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	2110 mm	1940 mm
Overall Width	760 mm	800 mm
Height	1270 mm	1300 mm
Ground Clearance	175 mm	N/A
Weight	136 kg	88.8 Kg
Fuel Tank Capacity	14 L	9.5L
Wheelbase	1360 mm	1200 mm
Seat Height	775 mm	N/A

Electricals 5

Battery Type	MF	MF
Battery Voltage	12 v	12v
Head Light	Projection	Halogen
Tail Light	LED	Halogen
Indicators	Halogen	Halogen

Features 8

Speedometer	Info-Not-Available	Analog
Odometer	Info-Not-Available	Analog
RPM Meter	Info-Not-Available	Digital
Handle Type	Pipe handle bar	Pipe handle bar
Seat Type	Single-Seat	Single-Seat
Passenger Grab Rail	Yes	Yes
Engine Kill Switch	Yes	No
Additional Feature	N/A	N/A