Jasion
A step-thru commuter with turn signals and a 528 Wh battery.
Low stock · Sold by Jasion Ebike (brand store)
Our verdict
A comfortable step-through commuter with good lighting and a mid-size battery; Jasion doesn't publish weight or rated power.
Commuters who ride at dusk and want an easy-mount frame.
Riders who need to carry the bike.
Editor scores
Scores are our editorial ratings (0–10), not manufacturer specs. How we score.
Specifications
| Motor, rated | — |
|---|---|
| Motor, peak (claimed) | 1,200 W |
| Torque (claimed) | 60 Nm |
| Top speed (claimed) | 28 mph |
| E-bike class | Not confirmed (rated power not published) |
| Throttle | Yes |
| Battery | 528 Wh |
|---|---|
| Voltage | 48 V |
| Range, best case (claimed) | 62 mi |
| Charge time | — |
| Removable battery | Yes |
| Wheel size | 26 in |
|---|---|
| Tire width | 1.95 in |
| Suspension | Front fork |
| Brakes | Mechanical disc |
| Gears | 7 |
| Bike weight | — |
|---|---|
| Max load (claimed) | — |
| Frame | Step-thru, high-carbon steel |
| Folds | No |
| Rider height | — |
| UL 2849 certified | No |
|---|---|
| Lights | Headlight, turn-signal taillight |
| Warranty | 1 year |
| Battery | 48 V 11 Ah |
|---|
Sources: Amazon listing (title, bullets and spec table), checked Oct 11 2026. A dash (—) means the value isn't published anywhere we could verify.
In-depth review
The Roamer ST pairs a step-through frame with 26 × 1.95 in tires, a front fork and 7 speeds. Its lighting stands out: a bright headlight, turn-signal taillight and reflective hubs. The 1,200 W peak motor reaches 28 mph.
The 528 Wh battery should give 30–35 real-world miles. Weight and rated motor power aren't published.
Sold by Jasion's store; 87% of ratings are four or five stars and owners praise support.
Owner reviews
4.4★ from 102 ratings (87% four or five stars). Owners praise quality and support; one wished for more than 7 gears.
Their second Jasion; support even checked in to make sure all was well.
— Ed Heffernan, Amazon.com
Bikes arrived early and went together easily.
— N. Smith, Amazon.com
A decent 7-speed for the price after their old bikes' batteries failed.
— C J Keeney, Amazon.com
Owner reviews from Amazon.com, summarized in our words. Ratings as of Oct 11, 2026.
Check today's price and delivery date on Amazon, or stack it against the alternatives.
Alternatives
A 500 W rated commuter with puncture-resistant 26 in tires.
A Class 2, UL-certified step-thru cruiser sold by Amazon.
Amazon's hottest retro e-bike: 720 Wh, dual suspension, passenger pad.
