Jasion EB5 Ultra Electric Bike for Adults
- Electric Bicycle
- 26 inches
- Electric Bike, Fat Tire
- Dual
- Better rated than 73%
- More reviewed than 60%
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How it ranks among the 478 electric bicycles we track
4.8★ across 23 Amazon ratings, Bayesian-smoothed toward the category average.
23 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 478 electric bicycles we track - how the scorecard works · full electric bicycles data report. Confidence: limited - limited rating history.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Jasion's EB5 Ultra is a fat tire electric mountain bike built around a 2500W peak motor, a 52V 20Ah (1040Wh) battery and dual suspension. It targets riders who want strong hill-climbing power and long range for mixed street, trail and off-road use.
One reviewer describes this as a class 3 e-bike, meaning speed and use rules vary by state, so check local regulations before riding it on public roads or trails. The 330 lb payload rating and rear rack point toward a bike meant to carry cargo as well as a rider. A recurring caveat from owners is that seat height adjustment has real limits, so taller or shorter riders should weigh frame geometry against their own height before buying.
- 2500W peak motor, roughly 75N.m torque
- 52V 20Ah (1040Wh) removable battery
- 26x4 inch fat tires with dual suspension
- Hydraulic disc brakes, headlight and brake-activated tail light
Who it's for
Suits adults who want an electric mountain bike with real hill-climbing torque (about 75N.m) and enough range for commuting or trail rides without daily charging. Less suited to riders near the edges of typical height ranges, since seat adjustment has limits.
What buyers say
From Amazon customer reviews.
Buyers found assembly straightforward (front tire, fenders, rack, handlebars, lights) and praised the rear rack's sturdiness and the bike's power; one owner at 5 feet 11 inches reported difficulty balancing and controlling the bike at stops even with the seat at its lowest setting.
Strengths and trade-offs
Drawn from this product's published specifications.
- 52V 20Ah battery rated up to 70 miles
- Dual suspension and hydraulic disc brakes
- Rear rack and fenders included for commuting
- Reported easy at-home assembly
- Seat and frame have limited height adjustment range
- No stated liner in the fat tires against punctures
Performance notes
The 2500W peak motor and roughly 75N.m of torque are paired with a 7-speed drivetrain and 5-level pedal assist, so power delivery can be tuned from light assist to full throttle. The 160mm rear shock and front fork are meant to absorb impact on rough terrain, while the 26x4 inch tires add grip on sand, snow and gravel. Hydraulic disc brakes plus a brake-activated tail light are aimed at stopping power and visibility rather than top speed alone.
Specifications
| Brand | Jasion |
|---|---|
| Model | EB5 ULTRA |
| Dimensions & fit | |
| Wheel Size | 26 inches |
| Size | Large |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Age Range Description | Adult |
| Construction & materials | |
| Frame Material Type | Carbon Steel |
| Color | Gray |
| Included components | |
| Included Components | Cargo Rack, Kickstand, Tool Kit |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Bike Type | Electric Bike, Fat Tire |
| Suspension Type | Dual |
| Model Year | 2024 |
| Additional Features | Digital Display, Dual Suspension, Fenders, Headlight, Taillight |
| Brake Style | Hydraulic |
Other Jasion electric bicycles
How it compares
This product against the closest alternatives we track in electric bicycles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Jasion EB5 Ultra Electric Bike for AdultsThis product | 4.8 / 5 | 23 | 2.7 / 5 |
| Wooken Electric Bike for Adults with 500W MotorWooken | 4.4 / 5 | 312 | 4.1 / 5 |
| TotGuard Electric BikeTotGuard | 4.4 / 5 | 286 | 4.1 / 5 |
| ANCHEER 14" Folding Electric Bike for TeensAncheer | 4.2 / 5 | 329 | 4.0 / 5 |
| Gotrax 16" Folding Electric BikeBrand | 4.4 / 5 | 555 | 4.0 / 5 |
Similar electric bicycles from other brands
Questions about the Jasion EB5 ULTRA
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What tools do I need to assemble the Jasion EB5 Ultra?
The included kit covers most of it, though buyers report a socket set (10mm, 13mm, 15mm) makes attaching the front tire, fenders, rack and handlebars easier.
How far can the EB5 Ultra go on a charge?
Jasion rates the 52V 20Ah (1040Wh) battery for up to 70 miles, though real-world range depends on terrain and pedal assist level used.
Is the EB5 Ultra suitable for taller riders?
One owner at 5 feet 11 inches found it hard to balance at stops even with the seat lowered fully, so taller riders should weigh frame geometry carefully.