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Side-by-Side Bike Comparison · September 2026

Bajaj Discover 125 Disc vs Roadmaster Prime 100

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

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⚡ Power Leader

Bajaj

Bajaj Discover 125 Disc

Engine 125 cc

Power 10.8 bhp

Mileage 50 kmpl

Brakes / ABS No

Switch Variant

Price in BD ৳160,600

Details

💎 Best Value

Roadmaster

Roadmaster Prime 100

Engine 100 cc

Power 6 bhp

Mileage 60 kmpl

Brakes / ABS No

Price in BD ৳76,900

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

POWER & HARDWARE #1

Bajaj Discover 125 Disc ( Bajaj Discover 125 Disc)

The Performance Benchmark

Delivers class-leading punch with 10.8 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.

VALUE CHAMPION #2

Roadmaster Prime 100 (Roadmaster Prime 100)

The Value Argument

Maximizes features per taka spent at ৳76,900. 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: 10.8 Bhp

Bajaj Discover 125 Disc ( Bajaj Discover 125 Disc) 10.8 bhp @ 8000 rpm

Roadmaster Prime 100 (Roadmaster Prime 100) 6 bhp @ 8000 rpm

Peak Torque Delivery (Nm) Top: 10.8 Nm

Bajaj Discover 125 Disc ( Bajaj Discover 125 Disc) 10.8 Nm @ 5500 rpm

Roadmaster Prime 100 (Roadmaster Prime 100) 6.5 Nm @ 5000 rpm

Claimed Top Speeds

90 km/h

Bajaj Discover 125 Disc ( Bajaj Discover 125 Disc)

90 km/h

Roadmaster Prime 100 (Roadmaster Prime 100)

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.

Bajaj

Bajaj Discover 125 Disc ( Bajaj Discover 125 Disc)

7.7 / 10

Performance 9.5

Comfort 6.6

Tech & Features 6.8

Fuel Economy 8.9

Value for Money 6.8

Roadmaster

Roadmaster Prime 100 (Roadmaster Prime 100)

8.2 / 10

Performance 7.9

Comfort 8.2

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	Bajaj Discover 125 Disc	Roadmaster Prime 100
Brand	Bajaj	Roadmaster
CC	125	100
Regular Price	160600	76900
Bike Type	Commuter	Commuter
Distributor/Seller	Uttara Motors Limited	Roadmaster Motors LTD
Model Year	2014	N/A
Brand Origin	India	N/A
Made In	India	N/A
Assemble In	Bangladesh	N/A
Launched Date	N/A	N/A

Engine 15

Engine Type	4 stroke, DTs-i	4 – Stroke Single Cylinder
Displacement	125	99
Maximum Power	10.8 Bhp @ 8000 RPM	6 Bhp @ 8000 RPM
Maximum Torque	10.8 NM @ 5500 RPM	6.5 NM @ 5000 RPM
Bore	50 mm	N/A
Stroke	58.6 mm	N/A
Compression Ratio	9.8:1	N/A
Valves	2	N/A
Fuel Supply	Carburetor	Carburetor
No of Cylinders	1	1
Engine Cooling	Air Cooled	Air Cooled
Starting Method	Kick & Electric	Kick & Electric
Engine Oil Grade	20W50	N/A
Engine Oil Capacity	1 L (Without Filter)	N/A
Best Lube For	Mobil Super 4T 20W50	N/A

Transmission 4

Transmission Type	Manual	Manual
No of Gears	5	4
Clutch Type	Wet Multiplate	Multi - disc wet clu
Drive Type	Chain Drive	N/A

Mileage & Top Speed 2

Mileage	50 Kmpl (Approx)	60 Kmpl (Approx)
Top Speed	90 Kmph (Approx)	90 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	Single Down Tube	N/A
Front Suspension	Telescopic Fr.fork & Antifriction bush (Stroke 130 mm)	Telescopic
Rear Suspension	Nitrox/Gas Filled Rear Shockabsorbers (Stroke 110 mm)	Mechanical Spring

Brakes 6

Front Brake Type	Single Disc	Drum Brake
Rear Brake Type	Drum Brake	Drum Brake
Front Brake Diameter	200 mm	N/A
Rear Brake Diameter	130 mm	N/A
Anti-Lock Braking System (ABS)	No	No
Braking System	Single disc	N/A

Wheels & Tyres 4

Front Tyre Size	2.75-17M/C 41P	2.75-17
Rear Tyre Size	3.00-17×17, 50P	3.00-17
Tyre Type	Tubeless	Tubeless
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	1980 mm	1980 mm
Overall Width	714 mm	860 mm
Height	1078 mm	1260 mm
Ground Clearance	170 mm	160 mm
Weight	120 kg	102 Kg
Fuel Tank Capacity	N/A	15L
Wheelbase	1306 mm	1290 mm
Seat Height	805 mm	N/A

Electricals 5

Battery Type	mf	MF
Battery Voltage	12v	12v
Head Light	12V 35/35W (Halogen)	12V 35/35W (Halogen)
Tail Light	Halogen	Halogen
Indicators	Halogen	Halogen

Features 8

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