How fast does the Vivi 500W fat tire bike go?

Vivi rates the top speed at 20 mph. That is the common Class 2 ceiling for this kind of e-bike.

What range can I expect on a charge?

Vivi lists a maximum travel distance of about 50 miles. Real range drops with rider weight, hills, throttle use and cold weather.

How long does the battery take to charge?

About 5 hours for the 7.8Ah battery. Plan on charging overnight or during a long break.

How much weight can it carry?

The max load is 330 lb, which covers most adult riders plus a light rack load. The bike itself weighs around 60 lb.

Does it need assembly?

Yes, assembly is required. Expect to fit the front wheel, handlebar, pedals and seat and to check brake and derailleur adjustment before riding.

Is it good for trails and snow?

The fat 26-inch tires and front suspension suit dirt paths, sand, snow and gravel. The steel frame and weight make it less nimble on tight singletrack.

Where is the Vivi 500W Fat Tire Electric Mountain Bike cheapest?

At Walmart, for $329.99, as of our latest check.

Where can I buy the Vivi 500W Fat Tire Electric Mountain Bike?

2 stores we checked sell it, including Walmart, eBay.

Vivi 500W Fat Tire Electric Mountain Bike

Best price now

$329.99at WalmartChecked 1 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Vivi 500W Fat Tire Electric Mountain Bike

Best price now

$329.99at WalmartChecked 1 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Walmart

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It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Lowest price today: $329.99 at Walmart (checked Nov 14, 2026).
Checked at 2 stores.

Our take on the Vivi 500W Fat Tire Electric Mountain Bike

The Vivi 500W is a fat-tire electric mountain bike built around a 26-inch wheel, a 500W geared hub motor and a 48V 7.8Ah battery. It pairs a 7-speed drivetrain and mechanical disc brakes with front suspension and a 330 lb max load, and Vivi rates it for up to 20 mph and about 50 miles per charge. The carbon steel frame and 60 lb weight make it a heavy, sturdy ride rather than a light trail bike. It suits riders who want a low-cost fat-tire e-bike for dirt paths, snow, sand and commuting, and it competes on fat tires and load capacity rather than on light weight or premium components.

Best forBudget-minded riders wanting a fat-tire e-bikeRiding on sand, snow, gravel and rough pathsHeavier riders needing a high load ratingCasual commuting and errands

Pros

Fat 26-inch tires handle sand, snow and loose ground
500W geared hub motor with 48V system and 20 mph top speed
330 lb max load is high for the class
7-speed gearing and front suspension
Mechanical disc brakes front and rear

Cons

Heavy at about 60 lb, hard to carry or lift
Carbon steel frame adds weight over aluminum rivals
Mechanical disc brakes need more hand effort than hydraulic
5-hour charge for a 7.8Ah battery limits long days
Assembly required out of the box

Vivi 500W Fat Tire Electric Mountain Bike prices at every store

eBayNew
In stock
$849.00+ $29.25 shippingChecked 1 h ago
Visit eBay
WalmartNew
Availability unknownSold by Vivi Store
$329.99Free shippingChecked 1 h ago
Visit Walmart

Vivi 500W Fat Tire Electric Mountain Bike price history

Lowest price we've seen: $329.99 on Nov 14 at Walmart. Tracked across 2 stores since Nov 14.

About the Vivi 500W Fat Tire Electric Mountain Bike

The Vivi 500W Fat Tire Electric Mountain Bike is an adult electric mountain bike with a 500 W geared hub motor and a 48 V, 7.8 Ah battery. It reaches a top speed of 20 mph and has a maximum travel distance of 50 miles.

The frame is carbon steel with front suspension and aluminum rims on 26 in wheels. A 7-speed drivetrain and disc brakes handle varied terrain. The bike weighs 60 lb and supports a maximum load of 330 lb. Assembly is required.

Type: Electric mountain bike, adult
Motor: 500 W geared hub motor
Battery: 48 V, 7.8 Ah
Battery life: 5 years
Charging time: 5 hours
Max speed: 20 mph
Max range: 50 mi
Speeds: 7-speed
Brakes: Disc brakes
Suspension: Front suspension
Frame material: Carbon steel
Frame size: 26 in (Large)
Wheel size: 26 in
Rim material: Aluminum
Weight: 60 lb
Max load: 330 lb
Color: White
Assembly: Required
Certification: No NRTL listing

Specifications

Suspension Type: Front Suspension
Type: Mountain
Color: White
With Hydraulic Brake: Yes
Number Of Speeds: 7 speed
Bicycle type: Mountain Bikes
Maximum travel distance: 50 mi

Questions and answers

How fast does the Vivi 500W fat tire bike go?: Vivi rates the top speed at 20 mph. That is the common Class 2 ceiling for this kind of e-bike.
What range can I expect on a charge?: Vivi lists a maximum travel distance of about 50 miles. Real range drops with rider weight, hills, throttle use and cold weather.
How long does the battery take to charge?: About 5 hours for the 7.8Ah battery. Plan on charging overnight or during a long break.
How much weight can it carry?: The max load is 330 lb, which covers most adult riders plus a light rack load. The bike itself weighs around 60 lb.
Does it need assembly?: Yes, assembly is required. Expect to fit the front wheel, handlebar, pedals and seat and to check brake and derailleur adjustment before riding.
Is it good for trails and snow?: The fat 26-inch tires and front suspension suit dirt paths, sand, snow and gravel. The steel frame and weight make it less nimble on tight singletrack.
Where is the Vivi 500W Fat Tire Electric Mountain Bike cheapest?: At Walmart, for $329.99, as of our latest check.
Where can I buy the Vivi 500W Fat Tire Electric Mountain Bike?: 2 stores we checked sell it, including Walmart, eBay.