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Side-by-Side Bike Comparison · September 2026

Roadmaster Prime 100 vs Runner AD-80S

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

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💎 Best Value

Roadmaster

Roadmaster Prime 100

Engine 100 cc

Power 6 bhp

Mileage 60 kmpl

Brakes / ABS No

Price in BD ৳76,900

Details

⚡ Power Leader

RUNNER

Runner AD-80S

Engine 80 cc

Power 6.14 bhp

Mileage 60 kmpl

Brakes / ABS No

Price in BD ৳84,000

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

VALUE CHAMPION #1

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.

POWER & HARDWARE #2

Runner AD-80S (Runner AD-80S)

The Performance Benchmark

Delivers class-leading punch with 6.14 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.

02 / Engine Output Benchmarks

The Dyno Room

Peak Bhp & Torque Scaled

Peak Power Output (Bhp) Top: 6.14 Bhp

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

Runner AD-80S (Runner AD-80S) 6.14 bhp @ 8000 rpm

Peak Torque Delivery (Nm) Top: 6.5 Nm

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

Runner AD-80S (Runner AD-80S) 5.7 Nm @ 6000 rpm

Claimed Top Speeds

90 km/h

Roadmaster Prime 100 (Roadmaster Prime 100)

70 km/h

Runner AD-80S (Runner AD-80S)

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 Prime 100 (Roadmaster Prime 100)

8.5 / 10

Performance 9.4

Comfort 8.2

Tech & Features 6.8

Fuel Economy 9.5

Value for Money 8.8

RUNNER

Runner AD-80S (Runner AD-80S)

8.6 / 10

Performance 9.5

Comfort 8.4

Tech & Features 6.8

Fuel Economy 9.5

Value for Money 8.6

06 / Full Technical Comparison

Specification Sheet

Show Differences Only

Bike Information 11

Bike Name	Roadmaster Prime 100	Runner AD-80S
Brand	Roadmaster	Runner
CC	100	80
Regular Price	76900	84000
Bike Type	Commuter	Commuter
Distributor/Seller	Roadmaster Motors LTD	Runner Automobiles Limited
Model Year	N/A	N/A
Brand Origin	N/A	Bangladesh
Made In	N/A	Bangladesh
Assemble In	N/A	Bangladesh
Launched Date	N/A	N/A

Engine 15

Engine Type	4 – Stroke Single Cylinder	Four stroke Petrol engine
Displacement	99	79
Maximum Power	6 Bhp @ 8000 RPM	6.14 Bhp @ 8000 RPM
Maximum Torque	6.5 NM @ 5000 RPM	5.7 NM @ 6000 RPM
Bore	N/A	47 mm
Stroke	N/A	49.5 mm
Compression Ratio	N/A	8.8 : 1
Valves	N/A	2
Fuel Supply	Carburetor	Carburetor
No of Cylinders	1	1
Engine Cooling	Air Cooled	Air Cooled
Starting Method	Kick & Electric	Kick & Electric
Engine Oil Grade	N/A	20W50
Engine Oil Capacity	N/A	600 ml (With Out Filter)
Best Lube For	N/A	Mobil Super 4T 20W50

Transmission 4

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

Mileage & Top Speed 2

Mileage	60 Kmpl (Approx)	60 Kmpl (Approx)
Top Speed	90 Kmph (Approx)	70 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	N/A	Fabricated Spine
Front Suspension	Telescopic	Hydraulic Telescopic
Rear Suspension	Mechanical Spring	Coil spring Hydraulic

Brakes 6

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

Wheels & Tyres 4

Front Tyre Size	2.75-17	2.50-17
Rear Tyre Size	3.00-17	2.75-17
Tyre Type	Tubeless	Tubetyre
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	1980 mm	1,880 mm
Overall Width	860 mm	865 mm
Height	1260 mm	1170 mm
Ground Clearance	160 mm	179 mm
Weight	102 Kg	86.7 kg
Fuel Tank Capacity	15L	9 Liters
Wheelbase	1290 mm	1235 mm
Seat Height	N/A	N/A

Electricals 5

Battery Type	MF	MF
Battery Voltage	12v	12V
Head Light	12V 35/35W (Halogen)	35W/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	Info-Not-Available	No
Additional Feature	N/A	N/A