Fengqs Q8 27.5 Inch Electric Mountain Bike 2000W
- Maximum Weight Recommendation: 330 pounds
- Wheel Size: 27.5 inches
- Size: Adult
- Lithium Battery Energy Content: 840 Wh
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well equipped ebike backed by responsive customer service, though buyers should expect real world speeds well under the advertised 35mph ceiling.
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ASIN: B0FYGHWVNRModel: Q8Category: Electric Bicycles
Overview
The Fengqs Q8 is a 2000W peak motor electric mountain bike with a 48V 840Wh removable battery, 27.5 inch tires, and 21 speed gearing, built for adults wanting a long range, accessory loaded e-assist ride.
Listed figures claim up to 35mph and 80 miles per charge, but multiple riders report a real top speed closer to the mid 20s, so treat those numbers as ceilings rather than typical results.
- 2000W peak motor with 840Wh removable battery
- 21 speed gearing with dual mechanical disc brakes
- Lockable front dual suspension fork
- Brake taillight, USB charging, and cargo rack included
Who it's for
Adults wanting a heavily accessorized ebike, with a built in taillight, USB charging, and a cargo rack, for commuting or trail riding. Not a match for anyone buying specifically to hit the advertised 35mph top speed.
Pros and cons
- Strong hill climbing reported by riders
- Built in brake taillight and USB charging
- Range covers a full day's commuting
- Seller replaced a defective battery quickly
- Real top speed runs well under 35mph
- Add-on bike bag often never arrived
- Assembly instructions described as vague
- Fenders arrived bent or fit poorly for some
Performance notes
Dual mechanical disc brakes and a lockable front dual suspension fork handle stopping and bumps, while the cadence based pedal assist offers 5 levels alongside pure electric and walk modes, with an LED display showing speed, mileage, and battery level.
Specifications
| Brand | Fengqs |
|---|---|
| Model | Q8 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 330 pounds |
| Wheel Size | 27.5 incheshigher than 97% of 409 electric bicycles |
| Size | Adult |
| Wheel Width | 2.1 incheslower than 82% of 243 electric bicycles |
| Capacity & performance | |
| Number Of Speeds | 21 |
| Bicycle Drivetrain Type | Chain Drive |
| Bicycle Gear Shifter Type | Trigger |
| Age Range Description | Adult |
| Power & efficiency | |
| Lithium Battery Energy Content | 840 Whhigher than 53% of 221 electric bicycles |
| Power Source | Battery |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Wheel Material | Aluminum |
| Color | Red |
| Warranty & support | |
| Warranty Description | 1 year |
| Warranty Type | Lifetime |
| Other details | |
| Electric Assist Type | pedal assist, throttle assist |
| Brake Style | Disc |
| Derailleur Configuration | Front And Rear |
| Is Assembly Required | Yes |
| Model Year | 2026 |
| Style Name | Standard |
Closest rivals on specs
Frequently asked questions
What top speed does the Fengqs Q8 ebike actually reach?
Riders report real world speeds closer to the mid 20s in mph, well below the advertised 35mph.
Does the Fengqs Q8 include the bike bag?
A bag ships as a separate optional item, though several buyers report it never arrived.
What is the battery capacity on the Fengqs Q8?
A 48V 17.5Ah (840Wh) removable battery, rated for up to 1000 full charge cycles.