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Happyrun

HAPPYRUN G50 Dual Suspension Fat Tire Electric Bike

  • Maximum Weight Recommendation: 265 pounds
  • Wheel Size: 20 inches
  • Wattage: 1500 watts
  • Brake Style: Disc

Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

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ASIN: B0FBGXFV32Model: G50Category: Electric Bicycles

Overview

The Happyrun G50 is a fat-tire electric bike with a 750W motor (1500W peak), a 48V 18Ah battery rated for up to 68 miles in pedal-assist mode, and 20x4 inch tires with front and seat post suspension.

It ships about 90% pre-assembled, needing only the front wheel, handlebars and pedals or kickstand installed before riding. Riders choose between pure electric, pedal-assist and standard pedaling modes, and the fat tires are intended for stability on uneven or off-road surfaces rather than paved commuting alone.

  • 750W motor, 1500W peak output
  • 48V 18Ah battery, up to 68 mile range
  • Front fork and seat post suspension
  • Patented Harley-inspired frame design

Who it's for

Suited to riders wanting a long-range fat-tire e-bike for mixed terrain who don't mind doing minor final assembly.

Pros and cons

Pros
  • Long claimed range up to 68 miles in PAS 1 mode
  • 20x4 inch fat tires with dual suspension for rough terrain
  • Ships mostly pre-assembled
  • Multiple ride modes: throttle, pedal-assist or standard pedaling
Cons
  • Stock seat criticized as uncomfortable by a reviewer
  • Pedals reportedly disengage above roughly 18 mph
  • Hill-climbing performance not yet confirmed by owners

Specifications

BrandHappyrun
ModelG50
Dimensions & fit
Maximum Weight Recommendation265 poundslower than 84% of 266 electric bicycles
Wheel Size20 inches
Wheel Width4 inches
Item Weight95 pounds
Capacity & performance
Number Of Speeds7
Age Range DescriptionAdult
Power & efficiency
Wattage1500 wattshigher than 68% of 197 electric bicycles
Construction & materials
Frame Material TypeCarbon Steel
Wheel MaterialAluminum
ColorBlack
Warranty & support
Warranty Description1 year
Other details
Brake StyleDisc
Suspension TypeDual
Bike TypeElectric Bike
Style NameRetro
ThemeMotorcycle

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Frequently asked questions

How far can the Happyrun G50 travel on a charge?

The seller lists up to 68 miles in PAS 1 (lightest pedal-assist) mode from the 48V 18Ah battery; actual range will be lower with heavier throttle use.

Does it come fully assembled?

It arrives about 90% assembled, requiring installation of the front wheel, handlebars and pedals or kickstand.

Can I pedal it at higher speeds?

One reviewer reports pedaling disengages above roughly 18 mph, a behavior described as ghost pedaling.