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Side-by-Side Bike Comparison · September 2026

Kawasaki Z900 vs Roadmaster Rapido

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

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⚡ Power Leader

Kawasaki

Kawasaki Z900

Engine 948 cc

Power 123.3 bhp

Mileage 17 kmpl

Brakes / ABS Dual-ch. ABS

Price in BD Price TBA

Details

💎 Best Value

Roadmaster

Roadmaster Rapido

Engine 150 cc

Power 13.6 bhp

Mileage 35 kmpl

Brakes / ABS No

Price in BD ৳135,900

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

POWER & HARDWARE #1

Kawasaki Z900

The Performance Benchmark

Delivers class-leading punch with 123.3 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.

VALUE CHAMPION #2

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.

02 / Engine Output Benchmarks

The Dyno Room

Peak Bhp & Torque Scaled

Peak Power Output (Bhp) Top: 123.3 Bhp

Kawasaki Z900 123.3 bhp @ 9500 rpm

Roadmaster Rapido (Roadmaster Rapido) 13.6 bhp @ 8500 rpm

Peak Torque Delivery (Nm) Top: 98.6 Nm

Kawasaki Z900 98.6 Nm @ 7700 rpm

Roadmaster Rapido (Roadmaster Rapido) 12.2 Nm @ 6000 rpm

Claimed Top Speeds

240 km/h

Kawasaki Z900

120 km/h

Roadmaster Rapido (Roadmaster Rapido)

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.

Kawasaki

Kawasaki Z900

8.5 / 10

Performance 9.5

Comfort 7.8

Tech & Features 9.4

Fuel Economy 7.7

Value for Money 8

Roadmaster

Roadmaster Rapido (Roadmaster Rapido)

7.9 / 10

Performance 6.4

Comfort 7.5

Tech & Features 7.4

Fuel Economy 9.5

Value for Money 8.8

06 / Full Technical Comparison

Specification Sheet

Show Differences Only

Bike Information 11

Bike Name	Kawasaki Z900	Roadmaster Rapido
Brand	Kawasaki	Roadmaster
CC	948	150
Regular Price	—	135900
Bike Type	Naked / Streetfighter	Naked Sports
Distributor/Seller	Asian Motorbikes	Roadmaster Motors LTD
Model Year	2026	N/A
Brand Origin	Japan	N/A
Made In	—	N/A
Assemble In	—	N/A
Launched Date	—	N/A

Engine 15

Engine Type	4 Stroke, DOHC, 16 Valve, In-Line Four	4 – Stroke Single Cylinder
Displacement	948	150
Maximum Power	123.3 Bhp (125 PS) @ 9500 RPM	13.6 Bhp @ 8500 RPM
Maximum Torque	98.6 NM @ 7700 RPM	12.2 NM @ 6000 RPM
Bore	73.4 mm	N/A
Stroke	56.0 mm	N/A
Compression Ratio	11.8:1	N/A
Valves	16 valve	N/A
Fuel Supply	Fuel Injection (DFI with Dual Throttle Valves)	Carburetor
No of Cylinders	4	1
Engine Cooling	Liquid Cooled	Air Cooled
Starting Method	Electric	Kick & Electric
Engine Oil Grade	N/A	N/A
Engine Oil Capacity	3.8 Litres	N/A
Best Lube For	N/A	N/A

Transmission 4

Transmission Type	Manual	Manual
No of Gears	6	5
Clutch Type	Wet, Multiple-Disc, Assist & Slipper Clutch	Wet Multiple-disc
Drive Type	Chain Drive	N/A

Mileage & Top Speed 2

Mileage	17.5 Kmpl (Approx)	35 Kmpl (Approx)
Top Speed	240 Km/h (Approx)	120 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	Steel Trellis Frame	N/A
Front Suspension	41 mm Inverted Fork with Rebound Damping and Spring Preload Adjustability	Inverted Telescopic Fork
Rear Suspension	Horizontal Back-Link with Rebound Damping and Spring Preload Adjustability	Monoshock

Brakes 6

Front Brake Type	Dual Disc Brake	Single Disc
Rear Brake Type	Disc Brake	Disc Brake
Front Brake Diameter	300 mm	240 mm
Rear Brake Diameter	250 mm	220 mm
Anti-Lock Braking System (ABS)	Dual Channel ABS	No
Braking System	Dual Channel ABS	CBS Braking

Wheels & Tyres 4

Front Tyre Size	120/70 ZR17 M/C (58W)	110/60-17
Rear Tyre Size	180/55 ZR17 M/C (73W)	130/60-17
Tyre Type	Tubeless	Tubeless
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	2070 mm	2050 mm
Overall Width	825 mm	830 mm
Height	1080 mm	1290 mm
Ground Clearance	145 mm	170 mm
Weight	212 Kg	138 Kg
Fuel Tank Capacity	17 Liters	12L
Wheelbase	1455 Mm	1330 mm
Seat Height	820 mm	N/A

Electricals 5

Battery Type	Lead Acid (Maintenance Free)	MF
Battery Voltage	12V	12v
Head Light	Led	LED
Tail Light	Led	LED
Indicators	Led	LED

Features 8

Speedometer	Digital	Digital
Odometer	Digital	Digital
RPM Meter	Digital	Digital
Handle Type	Single piece handle bar	Pipe handle bar
Seat Type	Split Seat	Single-Seat
Passenger Grab Rail	Yes	Yes
Engine Kill Switch	Yes	Yes
Additional Feature	4.3-inch Colour TFT Meter, Bluetooth Smartphone Connectivity (Rideology App), Kawasaki Traction Control (KTRC), Integrated Riding Modes (Sport, Road, Rain, Rider), Power Modes (Full / Low), Assist & Slipper Clutch, Gear Position Indicator.	N/A

07 / Video & Photo Showcase

Media & Gallery

Click to view popup

Kawasaki Z900

Kawasaki

0 Photos

No photos or videos available for this bike

Roadmaster Rapido (Roadmaster Rapido)

Roadmaster

2 Photos

HD Photos 2 images

No walkaround video available for this bike

08 / Real-World Trade-Offs

Strengths & Trade-offs

Pros vs Cons

Kawasaki

Kawasaki Z900

Strengths

✓ 125 PS inline-four engine delivers strong, linear power with a thrilling top-end rush.
✓ 98.6 Nm torque provides excellent flexibility and mid-range punch.
✓ Aggressive Sugomi styling gives it a proper supernaked stance.
✓ Rider-friendly electronics including traction control, riding modes and a TFT display with Bluetooth connectivity.
✓ Assist and slipper clutch keeps lever effort light and rear-wheel hop in check.

Trade-offs

✕ 212 kg kerb weight feels heavy in tight city traffic compared with smaller nakeds.
✕ Real-world mileage of around 17.5 kmpl makes it costly to run daily.
✕ Naked design offers no wind protection at highway speeds.
✕ Limited pillion comfort because of the sporty seat design.
✕ High purchase and maintenance costs in Bangladesh due to import duties and parts availability.

09 / Frequently Asked Questions

Frequently Asked Questions

From compared bikes

Kawasaki Z900 What is the Kawasaki Z900?

The Kawasaki Z900 is a supernaked motorcycle from Kawasaki's Z series, featuring the brand's Sugomi design language, a 948cc inline-four engine and a comprehensive electronics package.

Kawasaki Z900 What is the engine capacity of the Kawasaki Z900?

The Kawasaki Z900 has a 948cc liquid-cooled, four-cylinder inline engine.

Kawasaki Z900 How much power does the Kawasaki Z900 produce?

The Kawasaki Z900 produces a maximum power of approximately 125 PS (123.3 bhp) at 9,500 RPM.

Kawasaki Z900 What is the maximum torque of the Kawasaki Z900?

The Kawasaki Z900 produces approximately 98.6 Nm of maximum torque at 7,700 RPM.

Kawasaki Z900 How many gears does the Kawasaki Z900 have?

The Kawasaki Z900 comes with a 6-speed transmission with an assist and slipper clutch.

Kawasaki Z900 What is the Kawasaki Z900's top speed?

The Kawasaki Z900 is reported to have a top speed of around 240 km/h. Actual top speed can vary depending on riding conditions and specifications.

Kawasaki Z900 What is the mileage of the Kawasaki Z900?

The Kawasaki Z900 offers an approximate mileage of 17.5 kmpl, depending on riding style and road conditions.