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VIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849 vs ASKGO F29 Electric Bike

Buy the ASKGO F29 if you want the most bike for the money: it is $349.99 at Walmart as of November 3, $100 less than the VIVI MT20UL at $449.99 at VIVI. The VIVI wins on folding, lighter weight, and a much better rating (4.8 from 500 versus 3.4 from 324). Pick the VIVI if you need to fold it or carry it; pick the ASKGO if you want bigger wheels, more range, and a lower price.

Today the ASKGO F29 Electric Bike costs $100.00 less at its best price.

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VIVI
VIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849

VIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849

4.8· 500 ratings
$449.99at VIVIObserved Nov 3, 2026, 2:00 PM
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Choose the VIVI MT20UL if you need a folding frame for a trunk, closet, or small apartment and want the higher-rated bike.

Pros
  • Folds for storage in a car trunk or small apartment
  • Light at 24.5 kg for a fat-tire e-bike
  • Strong 4.8 rating from 500 buyers
  • Comes with rear rack, fenders, and a 150 kg payload
  • Five riding modes including cruise control and walk assist
Cons
  • Costs $100 more than the ASKGO at current prices
  • Smaller 20-inch wheels roll worse over rough ground
  • Mechanical disc brakes, not hydraulic
  • Steel frame is heavier than alloy
  • Only one store sells it new
ASKGO
ASKGO F29 Electric Bike

ASKGO F29 Electric Bike

3.4· 324 ratings
$349.99at WalmartObserved Nov 3, 2026, 1:05 AM
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Choose the ASKGO F29 if you want the lower price, a bigger 26-inch wheel, and a larger 720 Wh battery.

Pros
  • Cheapest of the two at $349.99
  • 720 Wh battery, the larger of the pair
  • 26-inch wheels handle gravel and trails better
  • 25 mph top speed and Class 3 rating
  • 365 lb max load and a rear rack included
Cons
  • 3.4 out of 5 from 324 ratings
  • Does not fold and is heavy to carry upstairs
  • Buyers report fast battery drain and slow seller support
  • Assembly and brake alignment take time and tools
  • Front basket fit is reported as poor

What separates them

VIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849ASKGO F29 Electric Bike
Price$449.99 at VIVI as of November 3$349.99 at Walmart as of November 3
FoldingFolds; step-through high-carbon steel frameDoes not fold; alloy steel step-through frame
Weight24.5 kg (about 54 lb)Not listed; buyers complain it is heavy to lift
Battery499 Wh (48V 10.4Ah), 4-6 hour charge720 Wh (48V 15Ah), 5-6 hour charge
Claimed range44-50 miles in pedal assist35 miles
Wheels and tires20 x 3.0 inch fat tires, 40 mm front fork travel26 inch knobby tires, front suspension
Motor1000 W peak hub motor, 65 Nm, about 22 mph750 W rated (1800 W claimed peak), 25 mph, Class 3
Rating4.8 out of 5 from 500 ratings3.4 out of 5 from 324 ratings

Price history

$469.99$349.99
Oct 29Nov 3
  • VIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849: lowest $349.99 on Nov 1 at Amazon; $469.99 on Nov 3.
  • ASKGO F29 Electric Bike: lowest $349.99 on Oct 29 at Walmart; $349.99 on Nov 3.

Prices at every store

VIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849

  • VIVINew

    In stockReturn policy

    $449.99Observed Nov 3, 2026, 2:00 PM
    Visit store

Also available at

  • VIVICheck price at VIVI
  • AmazonCheck price at Amazon
Prices and history →

ASKGO F29 Electric Bike

  • WalmartNew

    In stockSold by ASKGO

    $349.99Observed Nov 3, 2026, 1:05 AM
    Visit store

Also available at

  • WalmartCheck price at Walmart
Prices and history →

Specs compared

SpecVIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849ASKGO F29 Electric Bike
Battery Capacity499 Wh15 Amp Hours
Wheel Size20.0"26 in
Frame MaterialSteelAlloy Steel
ColorWhiteBlack
Motor TypeHub-drive-rear—
Peak Power1000 W—
Torque65 Nm—
Claimed Range80 km—
Weight24.5 kg—
Max Payload150 kg—
Tire Width3.00"—
Front Travel40 mm—
Show all 40 specsShow fewer specs
SpecVIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849ASKGO F29 Electric Bike
Gears7-speed—
Brake TypeMechanical-disc—
Suspension TypeFront Suspension—
TypeCruiser—
ElectricYes—
Age GroupAdult—
DepartmentWomen's—
Number Of Speeds7 speed—
Intended UseCommuting—
Usage Terrain

What reviewers say

VIVI MT20UL Electric Bike 3.0" Fat Tire Folding Electric Bike SGS Certified to UL2849

With 4.8 out of 5 from 500 ratings, owners largely report the MT20UL as good value for a folding fat-tire e-bike. Complaints tend to center on weight and brake upkeep rather than the motor or battery.

Pros
  • Strong motor for the price, with usable throttle and pedal assist
  • Comfortable ride from the fat tires and front suspension
  • Folding frame and included rack and fenders add practicality
  • Battery is removable and easy to charge indoors
Cons
  • Heavy and awkward to lift when folded
  • Mechanical disc brakes need frequent adjustment
  • Range falls well short of the claim under heavy throttle use

ASKGO F29 Electric Bike

Rated 3.4 out of 5 from 324 ratings. Owners like the power, value and easy step-through frame, but report weight, assembly hassle and fast battery drain.

Pros
  • Strong 750W motor for hills and 25 mph cruising
  • Good value for the price
  • Comfortable ride from front suspension and 26-inch wheels
  • Clear centered display and simple controls
Cons
  • Heavy to carry or lift
  • Assembly and brake/handlebar alignment take time
  • Battery drains quickly
  • Front basket fit is poor; seller slow to answer battery requests

Questions and answers

Which is better for commuting?
The VIVI MT20UL is the easier commuter: it folds, weighs 24.5 kg, and has a 44-50 mile assist range. The ASKGO F29 is faster at 25 mph and cheaper, but heavier to haul up stairs.
Which has the longer range?
The VIVI claims 44-50 miles in pedal assist from its 499 Wh battery. The ASKGO lists 35 miles from a larger 720 Wh battery, so real-world results may differ.
Is the VIVI worth $100 more?
Yes if you need folding or a lighter bike, and its 4.8 rating is far stronger than the ASKGO's 3.4. If neither matters, the ASKGO gives more battery and bigger wheels for less.
Which is better on rough trails?
The ASKGO F29, with 26-inch knobby tires, front suspension, and a 25 mph Class 3 motor. The VIVI's 20-inch wheels and 40 mm fork travel suit pavement and light paths.
Which is easier to store?
The VIVI MT20UL folds, so it fits in a closet or car trunk. The ASKGO F29 does not fold and buyers say it is heavy to lift.
Do both have UL2849 certification?
The VIVI is listed as SGS certified to UL2849. The ASKGO's listing says UL2849 certified but also lists no NRTL listing, so confirm with the seller before buying.

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Buying guides that pick them

  • Best electric bikes under $500
  • Best 20-inch folding fat tire bikes under $500
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  • Best folding electric bikes under $600
Various terrains
—
Age Range16+—
Suitable TerrainVarious terrains—
Typical UsersCommuters—
Range44-50 miles—
Riding StyleUrban commuting, Casual cruising, Excursions—
Load Capacity150 kg / 330 Ibs—
Bike TypeElectric Bike, Folding Electric Bike—
Design Material6061 Aluminum Alloy (Frame)—
Design HighlightsFolding, Waterproof Integration Cable—
Dimensions83x59cm / 32.7x23.2inch (Folding Dimensions)—
Design StyleUrban commuting—
Front Suspension Travel60 mm—
Front Suspension TypeCoil Spring—
Suspension ForkCoil Spring Suspension Fork—
Suspension HighlightsDual Shock Absorbers—
Tire Diameter51 cm / 20.0 inch—
Tire TypeFat Tires—
Tire Tread PatternFat tires—