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Side-by-Side Bike Comparison · September 2026

Roadmaster Rapido vs Speeder NSX 165R V3

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

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💎 Best Value

Roadmaster

Roadmaster Rapido

Engine 150 cc

Power 13.6 bhp

Mileage 35 kmpl

Brakes / ABS No

Price in BD ৳135,900

Details

⚡ Power Leader

Speeder

Speeder NSX 165R V3

Engine 165 cc

Power 21.5 bhp

Mileage 40 kmpl

Brakes / ABS Dual-ch. ABS

Price in BD ৳369,900

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

VALUE CHAMPION #1

Roadmaster Rapido (Roadmaster Rapido)

The Value Argument

Maximizes features per taka spent at ৳135,900. 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

Speeder NSX 165R V3 (Speeder NSX 165R V3)

The Performance Benchmark

Delivers class-leading punch with 21.5 bhp and sharp throttle response. Backed by Dual-ch. ABS 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: 21.5 Bhp

Roadmaster Rapido (Roadmaster Rapido) 13.6 bhp @ 8500 rpm

Speeder NSX 165R V3 (Speeder NSX 165R V3) 21.5 bhp @ 10500 rpm

Peak Torque Delivery (Nm) Top: 17.5 Nm

Roadmaster Rapido (Roadmaster Rapido) 12.2 Nm @ 6000 rpm

Speeder NSX 165R V3 (Speeder NSX 165R V3) 17.5 Nm @ 9000 rpm

Claimed Top Speeds

120 km/h

Roadmaster Rapido (Roadmaster Rapido)

140 km/h

Speeder NSX 165R V3 (Speeder NSX 165R V3)

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 Rapido (Roadmaster Rapido)

8.2 / 10

Performance 8.2

Comfort 7.5

Tech & Features 7.4

Fuel Economy 9.1

Value for Money 8.8

Speeder

Speeder NSX 165R V3 (Speeder NSX 165R V3)

8.3 / 10

Performance 9.5

Comfort 6.7

Tech & Features 9.4

Fuel Economy 9.5

Value for Money 6.5

06 / Full Technical Comparison

Specification Sheet

Show Differences Only

Bike Information 11

Bike Name	Roadmaster Rapido	Speeder NSX 165R V3
Brand	Roadmaster	Speeder
CC	150	160
Regular Price	135900	369900
Bike Type	Naked Sports	Sports
Distributor/Seller	Roadmaster Motors LTD	—
Model Year	N/A	N/A
Brand Origin	N/A	N/A
Made In	N/A	N/A
Assemble In	N/A	N/A
Launched Date	N/A	N/A

Engine 15

Engine Type	4 – Stroke Single Cylinder	4-stroke, Single cylinder, Liquid-cooled, EFI
Displacement	150	165
Maximum Power	13.6 Bhp @ 8500 RPM	21.5 Bhp @ 10500 RPM
Maximum Torque	12.2 NM @ 6000 RPM	17.5 NM @ 9000 RPM
Bore	N/A	58.5 mm
Stroke	N/A	58.8 mm
Compression Ratio	N/A	11.1
Valves	N/A	2222
Fuel Supply	Carburetor	EFI
No of Cylinders	1	1
Engine Cooling	Air Cooled	Liquid Cooled
Starting Method	Kick & Electric	Electric
Engine Oil Grade	N/A	20W50
Engine Oil Capacity	N/A	1 L (Without Filter)
Best Lube For	N/A	Mobil Super 4T 20W50

Transmission 4

Transmission Type	Manual	Manual
No of Gears	5	6
Clutch Type	Wet Multiple-disc	Wet-multiplate
Drive Type	N/A	Chain Drive

Mileage & Top Speed 2

Mileage	35 Kmpl (Approx)	40 Kmpl (Approx)
Top Speed	120 Kmph (Approx)	140 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	N/A	N/A
Front Suspension	Inverted Telescopic Fork	Telescopic USD (Golden USD)
Rear Suspension	Monoshock	Monoshock

Brakes 6

Front Brake Type	Single Disc	Dual Disc
Rear Brake Type	Disc Brake	Disc Brake
Front Brake Diameter	240 mm	300 mm
Rear Brake Diameter	220 mm	240 mm
Anti-Lock Braking System (ABS)	No	Dual Channel ABS
Braking System	CBS Braking	Dual Channel ABS

Wheels & Tyres 4

Front Tyre Size	110/60-17	110/70 – 17
Rear Tyre Size	130/60-17	150/70 – 17
Tyre Type	Tubeless	Tubeless
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	2050 mm	2040 mm
Overall Width	830 mm	770 mm
Height	1290 mm	1130 mm
Ground Clearance	170 mm	160 mm
Weight	138 Kg	153 Kg
Fuel Tank Capacity	12L	18L
Wheelbase	1330 mm	1380 mm
Seat Height	N/A	770 mm

Electricals 5

Battery Type	MF	MF
Battery Voltage	12v	12V, 9Ah
Head Light	LED	LED Projector
Tail Light	LED	LED
Indicators	LED	Halogn

Features 8

Speedometer	Digital	Digital
Odometer	Digital	Digital
RPM Meter	Digital	Digital
Handle Type	Pipe handle bar	Three part handle bar
Seat Type	Single-Seat	Split-Seat
Passenger Grab Rail	Yes	Info-Not-Available
Engine Kill Switch	Yes	Yes
Additional Feature	N/A	Traction Control