Jasion Roamer ST Step-Through Electric Bike, 48V 528Wh

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Product guide

Jasion Roamer ST Step-Through Electric Bike, 48V 528Wh

The Jasion Roamer ST is an adult step-through electric bike with a listed 48V, 528Wh battery, 26-inch wheels and seven speeds. Its removable battery, front suspension and pedal-assist modes suit paved-road commuting, but the listing gives conflicting motor, speed and range claims that buyers should resolve before choosing it for a specific ride.

At a glance

Removable 48V, 11Ah battery is listed as 528Wh, with charging possible at home or work.
Seven-speed drivetrain, front suspension and disc brakes are listed for urban and paved-road riding.
LCD display is described as showing speed, battery level and mode.
The listing describes electric, pedal-assist, pedal-only and walk-boost riding modes.

Price

$589.00Save 16%

Reference price: ~~$699.00~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Removable battery can be charged away from the bike.
Seven speeds and multiple listed riding modes offer options for assisted and unassisted riding.
Front suspension, disc brakes and an adjustable seat are listed for everyday riding setup.

Cons

High-carbon steel is the listed frame material, which may be a consideration for buyers prioritizing a lighter bike.

Technical specifications

36 specifications

Identity
Brand	Jasion
Model	Roamer ST
Bike type	Commuting Bike, Electric Bike
Rider age	Adult
Frame style	Step-thru Ebike
Size	Medium
Color	Celadon Green

Electrical system
Battery voltage	48V
Battery capacity	11AH
Battery energy	528WH
Battery	Removable
Screen technology listed	LCD
Display information	speed, battery level & mode

Ride and drivetrain
Wheel size	26 inches
Tire size	26"x 1.95"
Number of speeds	7
Assist type	pedal assist
Riding modes	3+1 modes: electric mode, pedal-assist mode pedal-only mode, walk boost mode.
Shifter	Twist Grip
Gear type	cassette
Drivetrain	Derailleur
Derailleur position	Rear
Suspension	Front
Brake style	Disc
Frame material	High Carbon Steel
Wheel material	Aluminum
Intended terrain	Paved Roads, Urban Terrain

Performance and fit claims
Peak motor power	1200W Peak
Maximum torque	60Nm maximum torque
Maximum speed claim	up to 28+MPH speeds
Maximum range claim	up to 62 miles range per charge (PAS Mode)
Payload capacity	Total Payload Capacity 300 Lbs
Charging time claim	5-6 hours fully charged

Listed features and components
Special features	26" Ebike, Adjustable Seat, Digital Display, Headlight
Included components	Charger, Headlight, Tool Kit
Assembly claim	95% pre-assembled

What to know before buying

Listing details to confirm

Listing details are contradictory or inconsistent: motor output and top speed are given as 1200W peak and up to 28+MPH in feature copy, but 750W peak and 20 MPH in the product description. Range claims also differ between up to 62 miles in PAS mode, up to 50 miles of pure-electric range and 45–60 miles. Charging time is stated as both 5–6 and 6–7 hours, while the displayed 3+1 modes are not fully itemized. Confirm the configuration and operating conditions with the selected listing before relying on these figures. The listing also calls the frame lightweight while specifying high-carbon steel.

What’s in the box

Included

Power adapter
Headlight
Tool kit

Who is it for?

A good fit for

Adult riders seeking a step-through electric bike for paved roads or urban commuting.
Buyers who value a removable battery and a listed LCD readout for speed, battery level and mode.
Riders who want multiple pedal and electric assistance modes alongside a seven-speed drivetrain.

Less suited to

Buyers who need confirmed motor output, maximum speed or range before purchase without clarifying the listing's conflicting claims.
Riders seeking a product specifically described for technical off-road use. The listed terrain is paved roads and urban terrain.

Jasion Roamer ST Step-Through Electric Bike, 48V 528Wh · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 101 ratings

5 stars79%79%
4 stars9%9%
3 stars4%4%
2 stars2%2%
1 star6%6%

Customer feedback highlights easy assembly, good battery life and a smooth riding experience, with positive comments about build and function as well. The supplied ratings lean strongly toward five-star scores, but include lower ratings too. Speed receives mixed feedback, which matters given the listing's conflicting top-speed claims. These reported impressions do not establish the bike's actual range or speed.

Positive themes

Customers describe assembly as easy and the ride as smooth.
Customers report good battery life and say the bike functions well.

Mixed feedback

Feedback is mixed on the electric speed options, so riders should not assume the listed modes or speed claims will match their preferences.

Frequently asked questions

How far does the Jasion Roamer ST travel on one charge?

The listing claims up to 62 miles in pedal-assist mode, but also gives 50 miles for pure-electric riding and 45–60 miles elsewhere. Treat these as conflicting claims, not a guaranteed range.

What motor power and top speed should buyers expect?

The feature copy claims 1200W peak and up to 28+MPH, while the product description says 750W peak and 20 MPH. The supplied listing does not establish which specification applies to the selected bike.

Can the battery be removed for charging?

Yes. The listing describes the 48V, 11Ah battery as removable and says it can be charged at home or work.

What riding modes are listed?

The listing names electric, pedal-assist, pedal-only and walk-boost modes. It does not provide a clear explanation of how the modes are controlled.