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Roadmaster Rex vs GoBike KN1 Plus
Complete specifications comparison to help you choose
Motorcycle Comparison
Roadmaster Rex
৳70,900
VS
GoBike KN1 Plus
৳136
Complete Specifications Comparison
Basic Information
Engine Type
4-stroke, single
N/A (Electric)
Engine Type
4-stroke, single
N/A (Electric)
Controller Type
N/A
N/A
Controller Type
N/A
N/A
Transmission Type
Manual
N/A (Direct Drive)
Transmission Type
Manual
N/A (Direct Drive)
Clutch Type
Wet, multi-plate
N/A
Clutch Type
Wet, multi-plate
N/A
Drive Type
Chain
N/A
Drive Type
Chain
N/A
Brand
Roadmaster
GoBike
Brand
Roadmaster
GoBike
Model
Roadmaster Rex
GoBike KN1 Plus
Model
Roadmaster Rex
GoBike KN1 Plus
Bike Name
Roadmaster Rex
GoBike KN1 Plus
Bike Name
Roadmaster Rex
GoBike KN1 Plus
Model Year
2025
2025
Model Year
2025
2025
Category/Type
Commuter
Scooter
Category/Type
Commuter
Scooter
Country of Origin
Bangladesh
N/A
Country of Origin
Bangladesh
N/A
Assembly Location
Bangladesh
India
Assembly Location
Bangladesh
India
Status
Available
N/A
Status
Available
N/A
Colors Available
Red, Black, Blue
Black
Colors Available
Red, Black, Blue
Black
Battery Type
N/A
Lithium-ion
Battery Type
N/A
Lithium-ion
Charger Type
N/A
On-board Charger
Charger Type
N/A
On-board Charger
Seat Type
Single-piece
N/A
Seat Type
Single-piece
N/A
Handle Type
Standard
N/A
Handle Type
Standard
N/A
Frame Type
Tubular steel
N/A
Frame Type
Tubular steel
N/A
Swingarm Type
Dual
N/A
Swingarm Type
Dual
N/A
Engine & Performance
Displacement (cc)
80.0
N/A
Displacement (cc)
80.0
N/A
Maximum Power
6.00
4.00
Maximum Power
6.00
4.00
Maximum Torque
N/A
N/A
Maximum Torque
N/A
N/A
Peak Power
6.0
N/A
Peak Power
6.0
N/A
Number of Cylinders
1
N/A
Number of Cylinders
1
N/A
Valve Configuration
SOHC
N/A
Valve Configuration
SOHC
N/A
Valves Per Cylinder
2
N/A
Valves Per Cylinder
2
N/A
Bore
N/A
N/A
Bore
N/A
N/A
Stroke
N/A
N/A
Stroke
N/A
N/A
Bore x Stroke
N/A
N/A
Bore x Stroke
N/A
N/A
Compression Ratio
N/A
N/A
Compression Ratio
N/A
N/A
Cooling System
Air-cooled
N/A
Cooling System
Air-cooled
N/A
Fuel Supply System
Carburetor
N/A
Fuel Supply System
Carburetor
N/A
Ignition System
Kick & Electric
N/A
Ignition System
Kick & Electric
N/A
Engine Layout
Single-cylinder
N/A
Engine Layout
Single-cylinder
N/A
Engine Oil Grade
N/A
N/A
Engine Oil Grade
N/A
N/A
Valve Adjustment Interval
N/A
N/A
Valve Adjustment Interval
N/A
N/A
Starting System
Kick & Electric
N/A
Starting System
Kick & Electric
N/A
Engine Kill Switch
No
N/A
Engine Kill Switch
No
N/A
Power-to-Weight Ratio
N/A
N/A
Power-to-Weight Ratio
N/A
N/A
Power Consumption
N/A
N/A
Power Consumption
N/A
N/A
Motor Power
N/A
Approx. 3 kW (4 HP) (inferred)
Motor Power
N/A
Approx. 3 kW (4 HP) (inferred)
Emission Standard
N/A
N/A
Emission Standard
N/A
N/A
Battery Power
N/A
N/A
Battery Power
N/A
N/A
Power Mode Indicator
No
N/A
Power Mode Indicator
No
N/A
Fuel & Mileage
Engine Oil Capacity
N/A
N/A
Engine Oil Capacity
N/A
N/A
Fuel Tank Capacity
9.5
N/A
Fuel Tank Capacity
9.5
N/A
Fuel Economy
N/A
N/A
Fuel Economy
N/A
N/A
Average Mileage
60.0
N/A
Average Mileage
60.0
N/A
Mileage City
60
N/A
Mileage City
60
N/A
Mileage Highway
65
N/A
Mileage Highway
65
N/A
Load Capacity
N/A
N/A
Load Capacity
N/A
N/A
Battery Capacity
N/A
3.5
Battery Capacity
N/A
3.5
Range
570 km
N/A
Range
570 km
N/A
Range Indicator
No
N/A
Range Indicator
No
N/A
Range Per Charge (Eco)
N/A
N/A
Range Per Charge (Eco)
N/A
N/A
Range Per Charge (Normal)
N/A
N/A
Range Per Charge (Normal)
N/A
N/A
Range Per Charge (Sport)
N/A
N/A
Range Per Charge (Sport)
N/A
N/A
Low Fuel Warning
No
N/A
Low Fuel Warning
No
N/A
Performance & Speed
Top Speed
90
80
Top Speed
90
80
Acceleration (0-60)
N/A
N/A
Acceleration (0-60)
N/A
N/A
Acceleration (0-100)
N/A
N/A
Acceleration (0-100)
N/A
N/A
Quick Shifter
No
N/A
Quick Shifter
No
N/A
Launch Control
N/A
N/A
Launch Control
N/A
N/A
Traction Control
No
N/A
Traction Control
No
N/A
Transmission & Drive
Number of Gears
4
N/A
Number of Gears
4
N/A
Gear Pattern
1-N-2-3-4
N/A
Gear Pattern
1-N-2-3-4
N/A
Gear Ratios
N/A
N/A
Gear Ratios
N/A
N/A
Primary Drive
Chain
N/A
Primary Drive
Chain
N/A
Final Drive
Chain
N/A
Final Drive
Chain
N/A
Drive Chain/Belt Type
Chain
N/A
Drive Chain/Belt Type
Chain
N/A
Chain/Belt Life
N/A
N/A
Chain/Belt Life
N/A
N/A
Dimensions & Weight
Overall Length
1940
N/A
Overall Length
1940
N/A
Overall Width
800
N/A
Overall Width
800
N/A
Overall Height
1300
N/A
Overall Height
1300
N/A
Wheelbase
1200
N/A
Wheelbase
1200
N/A
Ground Clearance
N/A
N/A
Ground Clearance
N/A
N/A
Seat Height
1300
N/A
Seat Height
1300
N/A
Step-up Seat Height
N/A
N/A
Step-up Seat Height
N/A
N/A
Kerb Weight
88.0
100.0
Kerb Weight
88.0
100.0
Gross Weight
88
N/A
Gross Weight
88
N/A
Battery Weight
N/A
N/A
Battery Weight
N/A
N/A
Brakes & Safety
Front Brake Type
Drum
N/A
Front Brake Type
Drum
N/A
Rear Brake Type
Drum
N/A
Rear Brake Type
Drum
N/A
Front Brake Size
N/A
N/A
Front Brake Size
N/A
N/A
Rear Brake Size
N/A
N/A
Rear Brake Size
N/A
N/A
ABS Type
N/A
N/A
ABS Type
N/A
N/A
Brake Pad Life
N/A
N/A
Brake Pad Life
N/A
N/A
Braking Distance
N/A
N/A
Braking Distance
N/A
N/A
Regenerative Braking
N/A
N/A
Regenerative Braking
N/A
N/A
Anti-Theft System
N/A
Yes (Alarm)
Anti-Theft System
N/A
Yes (Alarm)
Central Lock
N/A
N/A
Central Lock
N/A
N/A
Remote Lock
No
N/A
Remote Lock
No
N/A
Handle Lock
Yes
N/A
Handle Lock
Yes
N/A
Steering Lock
Yes
N/A
Steering Lock
Yes
N/A
Suspension & Handling
Front Suspension Type
Telescopic
N/A
Front Suspension Type
Telescopic
N/A
Rear Suspension Type
Twin shock absorbers
N/A
Rear Suspension Type
Twin shock absorbers
N/A
Front Suspension Travel
N/A
N/A
Front Suspension Travel
N/A
N/A
Rear Suspension Travel
N/A
N/A
Rear Suspension Travel
N/A
N/A
Adjustable Controls
N/A
N/A
Adjustable Controls
N/A
N/A
Climbing Ability
N/A
N/A
Climbing Ability
N/A
N/A
Wheels & Tires
Front Tyre Size
N/A
N/A
Front Tyre Size
N/A
N/A
Rear Tyre Size
N/A
N/A
Rear Tyre Size
N/A
N/A
Front Wheel Size
17
N/A
Front Wheel Size
17
N/A
Rear Wheel Size
17
N/A
Rear Wheel Size
17
N/A
Tyre Type
Tube
Tubeless
Tyre Type
Tube
Tubeless
Tyre Brand
Roadmaster
N/A
Tyre Brand
Roadmaster
N/A
Tyre Life
15000
N/A
Tyre Life
15000
N/A
Wheel Type
Spoke
N/A
Wheel Type
Spoke
N/A
Wheel Material
Steel
N/A
Wheel Material
Steel
N/A
Electrical & Battery
Motor Efficiency
N/A
N/A
Motor Efficiency
N/A
N/A
Motor Life
N/A
N/A
Motor Life
N/A
N/A
Motor Placement
N/A
N/A
Motor Placement
N/A
N/A
Motor Controller
N/A
N/A
Motor Controller
N/A
N/A
Controller Voltage
N/A
N/A
Controller Voltage
N/A
N/A
Controller Life
N/A
N/A
Controller Life
N/A
N/A
Battery Voltage
N/A
N/A
Battery Voltage
N/A
N/A
Battery Rating
N/A
N/A
Battery Rating
N/A
N/A
Battery Life
N/A
N/A
Battery Life
N/A
N/A
Battery Warranty
N/A
N/A
Battery Warranty
N/A
N/A
Battery Removable
N/A
N/A
Battery Removable
N/A
N/A
Battery Replacement Cost
N/A
N/A
Battery Replacement Cost
N/A
N/A
Battery Health Check
N/A
N/A
Battery Health Check
N/A
N/A
Battery Life Indicator
N/A
N/A
Battery Life Indicator
N/A
N/A
Battery Management System
N/A
N/A
Battery Management System
N/A
N/A
Charging Time
N/A
4-5 hours
Charging Time
N/A
4-5 hours
Charging Port
N/A
Standard AC Charging Port
Charging Port
N/A
Standard AC Charging Port
Charging Input
N/A
N/A
Charging Input
N/A
N/A
Fast Charging
N/A
No
Fast Charging
N/A
No
USB Charging
No
N/A
USB Charging
No
N/A
Lighting & Display
Error Code Display
No
N/A
Error Code Display
No
N/A
Headlight Type
Halogen
N/A
Headlight Type
Halogen
N/A
Tail Light Type
LED
N/A
Tail Light Type
LED
N/A
Turn Signal Type
Bulb
N/A
Turn Signal Type
Bulb
N/A
DRL
No
N/A
DRL
No
N/A
Hazard Light
No
N/A
Hazard Light
No
N/A
Display Type
Analog
Digital LCD (Speedometer, Odometer)
Display Type
Analog
Digital LCD (Speedometer, Odometer)
Speedometer Type
Analog
N/A
Speedometer Type
Analog
N/A
Odometer Type
Analog
N/A
Odometer Type
Analog
N/A
Tachometer Type
Analog
N/A
Tachometer Type
Analog
N/A
Fuel Gauge Type
Analog
N/A
Fuel Gauge Type
Analog
N/A
Clock
No
N/A
Clock
No
N/A
Pass Light Switch
No
N/A
Pass Light Switch
No
N/A
Side Stand Indicator
No
N/A
Side Stand Indicator
No
N/A
Technology & Features
Trip Meter
No
N/A
Trip Meter
No
N/A
Mobile Connectivity
No
N/A
Mobile Connectivity
No
N/A
Bluetooth Features
N/A
Yes (App connectivity)
Bluetooth Features
N/A
Yes (App connectivity)
Navigation
No
N/A
Navigation
No
N/A
Riding Modes
No
N/A
Riding Modes
No
N/A
Parking Mode
N/A
N/A
Parking Mode
N/A
N/A
Reverse Mode
No
N/A
Reverse Mode
No
N/A
Comfort & Ergonomics
Wind Protection
Minimal
N/A
Wind Protection
Minimal
N/A
Pillion Seat
Yes
N/A
Pillion Seat
Yes
N/A
Pillion Footrest
Yes
N/A
Pillion Footrest
Yes
N/A
Pillion Grab Rails
Yes
N/A
Pillion Grab Rails
Yes
N/A
Footpeg Position
Mid
N/A
Footpeg Position
Mid
N/A
Storage Compartments
No
N/A
Storage Compartments
No
N/A
Under Seat Storage
No
N/A
Under Seat Storage
No
N/A
Pricing & Availability
Ex-showroom Price
70900.00 BDT
N/A
Ex-showroom Price
70900.00 BDT
N/A
On-Road Price
N/A
N/A
On-Road Price
N/A
N/A
Regular Price
70900.00 BDT
৳136
Regular Price
70900.00 BDT
৳136
Special Price
N/A
N/A
Special Price
N/A
N/A
Registration Cost
30005000
50007000
Registration Cost
30005000
50007000
Insurance Cost
30005000
20003000
Insurance Cost
30005000
20003000
EMI Options
Available
Available, EMI starts from BDT 4,055/month
EMI Options
Available
Available, EMI starts from BDT 4,055/month
Distributor/Seller
Roadmaster
Authorized GoBike Dealers Bangladesh
Distributor/Seller
Roadmaster
Authorized GoBike Dealers Bangladesh
Service Cost
N/A
N/A
Service Cost
N/A
N/A
Running Cost
Very Low
N/A
Running Cost
Very Low
N/A
Service & Maintenance
Air Filter Service Interval
N/A
N/A
Air Filter Service Interval
N/A
N/A
Service Reminder
No
N/A
Service Reminder
No
N/A
Spare Parts Availability
High
N/A
Spare Parts Availability
High
N/A
Service Intervals
3000
N/A
Service Intervals
3000
N/A
Warranty Terms
2 years / 20,000 km
Typically 2 years battery + 1 year vehicle warranty (varies)
Warranty Terms
2 years / 20,000 km
Typically 2 years battery + 1 year vehicle warranty (varies)