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Side-by-Side Bike Comparison · September 2026

Roadmaster Rex vs TVS Raider 125

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

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💎 Best Value

Roadmaster

Roadmaster Rex

Engine 80 cc

Power 6 bhp

Mileage 60 kmpl

Brakes / ABS N/A

Price in BD ৳70,900

Details

⚡ Power Leader

TVS

TVS Raider 125

Engine 125 cc

Power 12.72 bhp

Mileage 50 kmpl

Brakes / ABS No

Price in BD ৳169,900

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

VALUE CHAMPION #1

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.

POWER & HARDWARE #2

TVS Raider 125 ( TVS Raider 125)

The Performance Benchmark

Delivers class-leading punch with 12.72 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: 12.72 Bhp

Roadmaster Rex (Roadmaster Rex) 6 bhp @ 8000 rpm

TVS Raider 125 ( TVS Raider 125) 12.72 bhp @ 8000 rpm

Peak Torque Delivery (Nm) Top: 11.5 Nm

Roadmaster Rex (Roadmaster Rex) 0 Nm

TVS Raider 125 ( TVS Raider 125) 11.5 Nm @ 6500 rpm

Claimed Top Speeds

80 km/h

Roadmaster Rex (Roadmaster Rex)

110 km/h

TVS Raider 125 ( TVS Raider 125)

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.

Roadmaster

Roadmaster Rex (Roadmaster Rex)

8.3 / 10

Performance 7.7

Comfort 8.5

Tech & Features 6.8

Fuel Economy 9.5

Value for Money 8.8

TVS

TVS Raider 125 ( TVS Raider 125)

7.8 / 10

Performance 9.5

Comfort 6.6

Tech & Features 7.4

Fuel Economy 8.9

Value for Money 6.5

06 / Full Technical Comparison

Specification Sheet

Show Differences Only

Bike Information 11

Bike Name	Roadmaster Rex	TVS Raider 125
Brand	Roadmaster	TVS
CC	80	125
Regular Price	70900	169900
Bike Type	Commuter	Commuter
Distributor/Seller	Roadmaster Motors LTD	TVS Auto Bangladesh Limited
Model Year	N/A	2022
Brand Origin	N/A	India
Made In	N/A	India
Assemble In	N/A	Bangladesh
Launched Date	N/A	2022-03-06

Engine 15

Engine Type	4 – Stroke Single Cylinder	Air & oil-cooled 3V engine
Displacement	79	124.76
Maximum Power	6 Bhp @ 8000 RPM	12.72 Bhp @ 8000 RPM
Maximum Torque	0 NM @ 0 RPM	11.5 NM @ 6500 RPM
Bore	N/A	53.5 mm
Stroke	N/A	55.5 mm
Compression Ratio	N/A	10.3:1
Valves	N/A	2
Fuel Supply	Carburetor	Carburetor
No of Cylinders	1	1
Engine Cooling	Air Cooled	Air & Oil Cooled
Starting Method	Kick & Electric	Electric
Engine Oil Grade	N/A	10W30
Engine Oil Capacity	N/A	1 L (Without Filter)
Best Lube For	N/A	Mobil Super Moto 10W30

Transmission 4

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

Mileage & Top Speed 2

Mileage	60 Kmpl (Approx)	50 Kmpl (Approx)
Top Speed	80 Kmph (Approx)	110 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	N/A	Double Cradle
Front Suspension	Telescopic	Hydraulic Telescopic
Rear Suspension	Twin-Spring loaded	5 Step Adjustable Monoshock, Gas Charged

Brakes 6

Front Brake Type	Single Disc	Disc Brake
Rear Brake Type	Drum Brake	Drum Brake
Front Brake Diameter	N/A	240 mm
Rear Brake Diameter	N/A	130 mm
Anti-Lock Braking System (ABS)	N/A	No
Braking System	N/A	Syncronised Braking Technology

Wheels & Tyres 4

Front Tyre Size	2.50-17	80/100 - 17
Rear Tyre Size	2.75-17	100/90 - 17
Tyre Type	Tubetyre	Tubeless
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	1940 mm	2080 Mm
Overall Width	800 mm	767 Mm
Height	1300 mm	1028 Mm
Ground Clearance	N/A	180 Mm
Weight	88.8 Kg	120 Kg
Fuel Tank Capacity	9.5L	10L
Wheelbase	1200 mm	1326 Mm
Seat Height	N/A	790 Mm

Electricals 5

Battery Type	MF	mf
Battery Voltage	12v	12V 4Ah
Head Light	Halogen	LED
Tail Light	Halogen	LED
Indicators	Halogen	Halogen

Features 8

Speedometer	Analog	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	No	Yes
Additional Feature	N/A	LCD Display, i-touch