I haven’t ridden the Jasion EB5 Roamer ST. It’s a $699 step-through commuter (as of Oct 27, 2026) with turn signals, a rack and fenders in the box, and it’s one of the cheapest full-size e-bikes I’ve written about. This page is built from Jasion’s official product page, which I checked on Oct 23 and again on Oct 27, 2026, and from bikes I have filmed. Every number comes from Jasion unless I say it’s my own math.
Should you buy one?
On paper, the EB5 Roamer ST gives you a lot of equipment for $699: a 1200W motor, a removable 48V 11Ah battery, an 80mm suspension fork, a Shimano 7-speed, turn signals and brake lights, a chain guard, and fenders and a rear rack in the box. As of Oct 27, 2026, Jasion shows it in stock in White and Pale Green, both at $699.
The trade-offs show up in the parts list too. The brakes are mechanical discs, the pedal assist uses a cadence sensor, torque is 60 Nm, the battery is modest at about 528Wh by my math, and the bike weighs 65 lb. Jasion’s page doesn’t state an e-bike class, but it lists a top speed of 28 mph, so check your local rules before riding at full speed.
If your rides are mostly flat pavement and the budget is firm, those trade-offs may be fine. If you have long hills or want a light bike, keep reading.
Motor and speed
Jasion lists a 1200W brushless rear hub with 60 Nm of torque, and the motor section of its page labels the 1200W figure as peak. The rest of the page doesn’t give a rated, continuous wattage. Jasion says the sine wave controller keeps the motor smooth and quiet, with five levels of assist and a thumb throttle, and it lists a top speed of 28 mph.
For context, 60 Nm is modest. The Velotric Discover 2, a commuter I tested, lists 75 Nm, and the Bee Cool Adventurer fat tire bike lists 92 Nm. I haven’t ridden the EB5, so I can’t tell you how it climbs.
Battery and range
The battery is 48V 11Ah, built from 18650 cells that Jasion attributes to SDI. Its product description also mentions Samsung and LG cells, so the page doesn’t agree with itself on the cell brand. Jasion calls the pack IPX6 waterproof and says it’s spring loaded and quick release, so you can take it inside to charge. The description also lists UL2271 certification for the battery and UL2849 for the bike. I haven’t checked those against UL’s database.
By my math, 48V times 11Ah is about 528Wh. Jasion rates the range at up to 62 miles. Jasion doesn’t say how it tested that figure, and I haven’t tested it. Jasion lists a 4 to 5 hour charge with its standard 2.0A charger.
Brakes, tires and suspension
The EB5 uses mechanical disc brakes. The Velotric Discover 2 and Aventon Pace 500.3, two commuters I filmed, both have hydraulic brakes.
Jasion’s spec table lists 26 by 1.95 inch tires and calls them fat tires, but 1.95 inches is a regular bike tire width. Its own product description says something different, 26 by 2.25 inch Michelin tires, so check with Jasion before you order if tire size matters to you. The page also lists puncture resistant tires and reflective strips on the spokes.
Up front there’s an 80mm suspension fork. Jasion says it smooths out bumps on uneven roads and trails.
Lights and safety
The lighting is where Jasion puts most of its marketing. You get a front LED headlight, a rear tail light, brake lights and left and right turn signals, all worked from the left handlebar controls along with a horn. Jasion says the turn signals still work when the other lights are off.
Frame and fit
The EB5 ST comes in one size, with a step-through frame for easy on and off. Jasion lists riders from 5’2” to 6’6”, a max seat height of 32.2 inches, a handlebar height of 44 inches and a 40 inch wheelbase. The payload is 330 lb in the spec table, but the product description says 300 lb, so I’d plan around the lower figure.
What’s in the box, warranty and returns
Jasion lists the bike, two fenders, a rear rack, a charger, a toolkit, pedals, a kickstand and a user manual. Its site shows a one year warranty, free shipping and a 14 day return window, and it offers an extended warranty as an add-on. A 14 day window is short, so if you buy one, assemble and ride it right away.
How it compares with bikes I’ve filmed
The closest bike I’ve filmed on price is the Ainohot Terra, $799 on sale at Ainohot as of Oct 27, 2026. It’s also a step-through with mechanical disc brakes and a cadence sensor, but on 26 by 4 inch fat tires with a 624Wh battery at 68 lb. I bottomed out its fork at about 200 lb, and I said it suits a household that shares one bike and rides some gravel or dirt. The EB5 is the more road focused of the two, and it comes with fenders and a rack, which the Terra doesn’t.
At the low end of the price range, the Romatlink Dolphin was $599 at Romatlink on Oct 23, 2026. Romatlink lists a 48V 30Ah (1,440Wh) battery and 75 Nm, but it weighs 93 lb. When I reviewed it, it became our daily driver for taking the kids to school.
If you can spend more, the Velotric T1 ST is a very different kind of step-through. Velotric lists it at 36 lb, and I rode it over 100 miles while using only two of its four battery bars. It’s now sold as the T1 ST Plus at $1,399 (Oct 22, 2026). The Aventon Pace 500.3 adds a torque sensor and hydraulic brakes with a 614Wh battery at 54 lb, but it’s only priced in Canada now, at C$1,999.
Those rival specs come from the brands, as listed on my review pages for each bike.
Who it’s for
The EB5 Roamer ST makes sense for riders on a tight budget who want a step-through with turn signals, fenders and a rack already on it, and whose rides are mostly flat and paved. It’s harder to recommend for long commutes, hilly areas where hydraulic brakes help, or anyone who has to lift the bike often.
FAQ
Have I ridden the Jasion EB5 Roamer ST?
No. I haven’t ridden it. Everything here comes from Jasion’s product page and bikes I have filmed.
Is it a fat tire bike?
Jasion calls it one, but its spec table lists 26 by 1.95 inch tires, which is a standard width.
Does it come with fenders and a rack?
Yes. Jasion lists two fenders and a rear rack in the box.
What class is it?
Jasion doesn’t say. It lists a 28 mph top speed and a thumb throttle.
Pros and cons
Pros (on paper): $699; turn signals and brake lights; fenders and a rear rack in the box; an 80mm front fork; a removable battery; fits riders up to 6’6”.
Cons (on paper): mechanical disc brakes; a cadence sensor; a battery of about 528Wh; 65 lb; no class stated; a 14 day return window; tire and payload figures that differ within Jasion’s own page.
Price
Jasion lists the EB5 Roamer ST at $699, in stock in White and Pale Green, as of Oct 27, 2026.
See the EB5 Roamer ST at Jasion (not an affiliate link)
For other options, see my best commuter e-bike guide.
“I have fought the good fight, I have finished the race, I have kept the faith.” 2 Timothy 4:7 (ESV)
