US
Jasion

Jasion Thunder Electric Bike for Adults

  • Electric Bicycle
  • 26 inches
  • 400 pounds
  • 864 Wh
3.6/ 5 on Amazon8Amazon ratings2.7ProductDome score
Limited evidenceLast refreshed Jun 21, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a high-torque, long-range fat tire ebike and are comfortable working through occasional setup issues.

Strong specs and a comfortable ride for the price when it works, but multiple owners hit early hardware faults, so factor in some post-purchase troubleshooting risk.

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More from this brandAll Jasion electric bicycles
ProductDome scorecard

How it ranks among the 478 electric bicycles we track

2.7/ 5ProductDome scoreLimited evidence
Owner satisfaction · 63% of scorecategory median 4.4★4.1

3.6★ across 8 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 19% of scorecategory median 13 ratings1.2

8 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Data quality · 13% of score3.8

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

A 26x4 fat tire electric bike from Jasion built around an 1800W peak motor and 864Wh removable battery, aimed at long-range commuting and adventure riding with hydraulic brakes and front suspension.

The bike itself draws solid marks for comfort and speed, but reliability and support are the recurring sore points in owner feedback: controller failures, sensor faults and a wrong-color shipment all show up across a small review set. Weigh that against the strong on-paper range and torque before buying.

  • 1800W peak motor, 85 N.m torque
  • 48V 18Ah battery, up to 80 mile range
  • 26 inch x 4 inch fat tires, 400 lb capacity
  • Dual hydraulic disc brakes, 7-speed Shimano drivetrain

Who it's for

Riders prioritizing long range and torque who are willing to troubleshoot occasional hardware faults or deal with customer support. Less suited to buyers who want a trouble-free unboxing experience.

What buyers say

From Amazon customer reviews.

Riders who had no hardware issues liked the battery life and comfortable ride at speed, calling it good value after weeks of regular use. But a meaningful share of reviews describe early faults: a non-working controller on two bikes with a slow support response, a rear brake sensor problem where the company wanted to sell rather than send a replacement part, and a wrong color shipment.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Comfortable ride and strong acceleration when hardware works
  • Good value cited relative to price after 20 days of regular use
  • 400 lb load capacity and 26x4 fat tires for stability

Performance notes

The 48V 18Ah battery and 1800W peak motor are built for sustained torque on hills and long commutes, and owners who had no hardware faults describe the ride as comfortable and capable at highway-adjacent speeds; the issue reported repeatedly is component reliability rather than the ride quality itself.

Specifications

BrandJasion
Dimensions & fit
Wheel Size26 inches
Maximum Weight Recommendation400 pounds
Capacity & performance
Bicycle Gear Shifter TypeTwist Grip
Bicycle Drivetrain Typechain drive
Age Range DescriptionAdult
Power & efficiency
Lithium Battery Energy Content864 Wh
Construction & materials
Frame Material TypeAluminum
ColorGunmetal Gray
Included components
Included ComponentsFenders, Cargo Rack, Headlight, Brake Light, Turn Signals, Horn
Other details
Bike TypeElectric Bike
Suspension TypeFront
Electric Assist Typepedal assist
Additional FeaturesHydraulic Disc Brakes
Style NameThunder Standard

How it compares

This product against the closest alternatives we track in electric bicycles.

ProductAmazon ratingRatingsProductDome score
Jasion Thunder Electric Bike for AdultsThis product3.6 / 582.7 / 5
Wooken Electric Bike for Adults with 500W MotorWooken4.4 / 53124.1 / 5
TotGuard Electric BikeTotGuard4.4 / 52864.1 / 5
ANCHEER 14" Folding Electric Bike for TeensAncheer4.2 / 53294.0 / 5
Gotrax 16" Folding Electric BikeBrand4.4 / 55554.0 / 5
Frequently asked

Questions about the Jasion electric bicycles

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How far does the Jasion Thunder go on a charge?

Jasion lists up to 80 miles from the 48V 18Ah battery, though actual range depends on assist level and terrain.

Have buyers had reliability problems?

Yes, several reviews describe controller or sensor faults shortly after purchase, with mixed experiences getting free replacement parts.

What's the weight capacity of the Jasion Thunder?

It's rated for up to 400 lbs including rider and cargo.