1 year extra warranty available

Designed with care for the environment and a long lifespan

Ouxi V8 Ultra Max in black with dual battery

Thanks to the powerful motor, no ride is ever too tough

Ouxi V8 Ultra Max colour display with NFC

17 reviews

Ouxi V8 Ultra Max - Black

1.397,-

1.600,-

Save 13%

Key specifications

Range

120 km (up to 150 km)

Motor

250W

Speed

25 km/h

Battery

2x 48V / 15Ah / 1440Wh

Suspension

Front and rear suspension

Brake type

Hydraulic disc brakes

Get these free for a limited time:

00d 00h 00m 00s

Ouxi V8/C80 - Fold-Up Footpegs Free ~~28,97~~
Fatbike Twist Throttle with Spacer Ring Free ~~14,97~~
Phone Holder Fatbike Bag - Rzahuahu Free ~~18,97~~
Fatbike Pump Free ~~7,-~~

Worth 69,91 AUTOMATICALLY ADDED TO CART

Alternative product

QMWheel V29 Pro Dual Battery - Black From 1.147,- View alternative

17 reviews

WesselVerified

Sep 7, 2026

Two batteries included

With two batteries I can really do long rides.

haticeVerified

Aug 26, 2026

What a bike

What a super bike

DanielVerified

Aug 14, 2026

Suspension front and rear

Thanks to the suspension front and rear it rides very comfortably.

Mariam HassanVerified

Aug 2, 2026

Extended saddle

My daughter sits on the back on the extended saddle, with the footrests fitted. She does find it a bit hard to sit on.

Rick AartsVerified

Jul 19, 2026

With peace of mind

I leave it outside with peace of mind.

Nikolai PetrovVerified

Jul 4, 2026

Shimano works fine

The Shimano gears work fine.

sara lVerified

Jun 18, 2026

Lovely black one

Sleek in black, exactly like in the photos.

Orhan KilicVerified

Jun 1, 2026

Brakes are strong

The hydraulic disc brakes bite well.

Jort VeldmanVerified

May 14, 2026

For our own land

Went for the Tunable version for our own land, on the public road I ride it restricted. Working out how it all goes did take some time.

Ilona BrinkVerified

Apr 28, 2026

Really happy with it

I am really happy with it

Anonymous

Apr 9, 2026

Stable with luggage

Even with bags on the handlebars it stays stable.

Tom HeijmansVerified

Mar 20, 2026

Was at the door

Delivered assembled, it was at the door ready to ride.

Natalia HorvatVerified

Feb 24, 2026

Clear screen

The screen is clear and easy to read.

Guus PrinsenVerified

Jan 27, 2026

Feels sturdy

Feels sturdy and rides steadily. For carrying up a stairwell it really is too heavy.

yaraVerified

Dec 18, 2025

Does what is promised

does what is promised.

Joost OomenVerified

Nov 8, 2025

Weekend rides

At the weekend I do long rides on it without worrying about the battery.

Ceren AktasVerified

Oct 1, 2025

Best purchase

Best purchase of this year. The two of us ride it, my husband to work and me during the day with the little one on the back, and thanks to those two batteries we hardly ever have to charge.

Product information

The benefits at a glance

Tunable up to 50 km/h
Dual battery: range up to 150 km
Hydraulic disc brakes
7 Shimano gears

Ouxi V8 Ultra Max Black

The Ouxi V8 Ultra Max is made for anyone who prefers riding together over riding alone. With the extended saddle and the footrests included, you easily take a passenger along, because this e-fatbike carries up to 150 kg. The wide 20x4 inch tyres keep their grip on asphalt, sand, grass and even snow, while the front and rear suspension absorbs bumps in the road.

You choose the version yourself: restricted (250W, 25 km/h) for public roads, or tunable up to 50 km/h for private property. Free accessories, spare parts and a maintenance kit are included.

Why choose the V8 Ultra Max?

Tunable up to 50 km/h (on private property only)
Dual battery: 2x 48V 15Ah, 1440 Wh together
Range up to 150 km (about 120 km at average assist)
Suitable for 2 people: extended saddle and footrests
250W motor with rotation sensor
Shimano 7 gears
Hydraulic disc brakes front and rear
Suspension front and rear
NFC locking and built-in alarm
LCD display with protective cover
LED front lighting
Maximum load 150 kg
Weight: 40 kg
Delivered with 2 batteries and charger

Two batteries, twice the freedom

Under the frame sit two 48V/15Ah batteries, together good for 1440 Wh. At average assist that gives you a range of around 120 kilometres. The batteries are removable, so you can charge them indoors; within 5 to 7 hours they are fully topped up again.

Instant power, always in control

The 250W motor supports you up to 25 km/h and thanks to the rotation sensor that help kicks in after half a pedal stroke. If you choose the tunable version, you tune the fatbike on private property up to 50 km/h. With the Shimano 7 gears you pick the right ratio in every situation, and the hydraulic disc brakes front and rear give you a short, controlled stopping distance.

Smartly secured on the road

You lock it contactlessly via NFC and the built-in alarm scares off unwanted guests. The LCD display with protective cover shows your speed and battery level at a glance, and the LED front lighting keeps you visible when it gets dark.

Battery & range

The actual distance depends on, among other things:

Riding style
Speed
Tyre pressure
Temperature
Assist level
Terrain

Regular charging and correct maintenance contribute to optimal performance and a longer life for the batteries.

Range

120 km

Motor

250W (Restricted) · 500W (Tunable)

Battery

2x 48V / 15Ah / 1440Wh

Charging time (0-100%)

5-7 hours

Speed restricted

25 km/h

Speed tuned

50 km/h

Throttle

Included free of charge

Brake type

Hydraulic disc brakes

Similar products

Current product

Ouxi V8 Ultra Max - Black

From 1.397,-

1.600,-

View options

Range

120 km

Motor

250W (Restricted) · 500W (Tunable)

Battery

2x 48V / 15Ah / 1440Wh

Charging time (0-100%)

5-7 hours

Speed

25 km/h

You have questions, we have answers!

Everything you want to know about fatbikes, tuning and our service.

Why choose fatbikeklaar.nl?

We specialize in tunable fatbikes and parts. Over 500 happy customers have gone before you. Fast delivery, sharp prices, and customer service that truly thinks along with you.

Can I have my fatbike tuned by you?

Our fatbikes are tunable, and we also supply individual parts to upgrade your fatbike. Please note: tuning is only permitted on private property, not on public roads.

Is a fatbike still legal?

Yes, a fatbike that complies with current regulations (max. 25 km/h pedal assist and a 250W motor) is fully legal on public roads. Tuned models may only be used on private property.

What are the new fatbike rules for 2026?

As of 2026, stricter rules apply around age, helmet requirements, and vehicle specifications. Check our information page for the latest details.

Do you need a driver’s license for a fatbike?

You don’t need a driver’s license for a regular fatbike with pedal assist up to 25 km/h. You do for tuned models above that limit. Keep in mind those are only allowed on private property.

Why buy a fatbike?

A fatbike is comfortable, fast, and ready for any terrain, from city streets to the beach. Ideal for commuting and for fun. And with our tunable models, you get even more out of it.

Do you need a helmet on a fatbike?

A helmet is strongly recommended for your own safety. From 2026, a helmet requirement will be introduced for certain fatbike categories.

What does tuning a fatbike cost?

A tunable controller costs from 98 euro for the V20 family and the Ouxi models, and 179 euro for the GT2000 and GT2000 2.0. Fitting it yourself usually takes less than half an hour. Not sure which part fits your fatbike?

Try the buying guide

Can’t find your question? Contact our customer service via WhatsApp chat. We aim to reply within 1 hour. WhatsApp chat only. We can't take calls, not even via WhatsApp.

WhatsApp us

View all questions

Ouxi V8 Ultra Max - Black: 1440 Wh for long rides with two of you

Two batteries of 48V 15Ah, 1440 Wh together: that is the starting point of this fatbike. With medium assistance you get about 120 km out of it. The black Ouxi V8 Ultra Max is therefore built for long distances and for anyone who often takes a passenger along. An extended saddle, footrests and a 150 kg maximum load make that easy.

At FatbikeKlaar.nl you choose it restricted to 25 km/h or tunable up to 50 km/h for private property. You order the same bike via FatbikeKlaar.be for Belgium and in English via FatbikeKlaar.com. Free accessories, spare parts and a maintenance kit are in the box as standard.

Why the V8 Ultra Max is a good choice

Performance

Motor: 500W with a rotation sensor; the assistance sets in after half a pedal stroke.
Battery: 2x 48V / 15Ah, 1440 Wh together, both removable.
Range: 120 km on average, 90 km on high and 150 km on low assistance.
Charging time: 5 to 7 hours.
Brakes: hydraulic disc brakes front and rear.
Wheels and drivetrain: 20 inch wheels with 20x4 inch tyres, Shimano 7 gears, suspension front and rear.

Safety and the law

Restricted, the bike runs with pedal assist up to 25 km/h. That way it counts as an ordinary e-bike: no driving licence, helmet, registration plate or insurance needed. Tuned riding is only allowed on private or enclosed property; on public roads a maximum of 25 km/h pedal assist applies.

The V8 Ultra Max in practice

Comfort and riding position

The bike has a high step-through and suits heights from 150 to 200 cm. The extended saddle and the footrests are there for your passenger; together you may weigh 150 kg. Suspension front and rear takes the sting out of cobbles and forest tracks. Honest about the weight: 40 kg, partly because of the two batteries; you would rather lift it with someone else.

Battery, display and charging

You click both batteries out of the frame and charge them indoors; they are full in 5 to 7 hours. Riding style, tyre pressure, temperature and terrain determine how far you get. The LCD display with a protective cover shows your speed and battery level. Locking is contactless via NFC and a built-in alarm is standard.

Tuning: what is possible and what is allowed

The Tunable version can be tuned up to 50 km/h. Tuned riding is only allowed on private or enclosed property; on public roads a maximum of 25 km/h pedal assist applies. According to our product finder, a 500W motor goes with the red motor plug; check that before you order parts. Matching controllers and displays are in the tuning kit collection. More explanation is in tuning the Ouxi V8. A throttle that goes faster than 6 km/h without pedalling is not allowed on public roads.

Service, warranty and delivery

You get a 2-year warranty on everything: frame, battery, motor, display, controller and parts. Ordered before 23:59, delivered tomorrow in the Netherlands. You choose delivery boxed, or assembled with adjusted brakes and checked batteries. Returns are allowed within 14 days, unused and in the original packaging. Delivery to Belgium and Germany is available. Delivery costs for a bike: Netherlands €59, Belgium €79, Germany €239.

Parts and accessories for the V8 Ultra Max

The maintenance kit is included; the rest we keep in stock.

Controller: the tunable V8 Ultra controller with red motor plug works up to 50 km/h.
Display: the HC80 display, tunable with NFC and kill switch fits the V8 Ultra.
Batteries: spare 48V batteries for the Ouxi V8 family are listed under batteries.
Seats and carriers: rear seats and carriers for your passenger are listed under seats and carriers.

The V8 Ultra Max compared with our other fatbikes

V8 Ultra Max versus QMWheel V20 Pro

The QMWheel V20 Pro has one battery of 720 Wh and gets about 60 km on average; the V8 Ultra Max doubles that. The V20 Pro is lighter at 34 kg and charges in 4 to 6 hours. Tuned it reaches 45 km/h with the red motor plug and 32 km/h with the black one, against 50 km/h here.

V8 Ultra Max versus Ouxi GT2000

The Ouxi GT2000 also has 1440 Wh, but in one battery of 48V 30Ah. It rolls on 24 inch wheels, weighs 34 kg and is meant for 1 person; on average it manages 80 km. Tuned it goes up to 60 km/h, with a kill switch and a throttle that stays restricted to 6 km/h.

V8 Ultra Max versus Ouxi C80 Family Edition

The Ouxi C80 Family Edition is a family fatbike in one version, restricted to 25 km/h; tuning up to 45 km/h runs via a separate controller or display. You choose the V8 Ultra Max restricted or tunable right away and it has 1440 Wh against 720 Wh. Both run on a 500W motor with hydraulic disc brakes and the same warranty.

Advice and product finder

Not sure between restricted and tunable, or looking for the right part? Use the product finder. Delivery, warranty and returns are covered in the frequently asked questions. Prefer personal contact? Send a WhatsApp message to 06 82090642.

Ordering the V8 Ultra Max from FatbikeKlaar

First choose the version: Restricted (250W) for public roads or Tunable for private property. Then choose the delivery: Boxed to assemble yourself, or Assembled and delivered ready to ride. Have a look at our other fatbikes as well.

Frequently asked questions about the V8 Ultra Max

Do I need a driving licence or a helmet?

No. Restricted to 25 km/h, the bike counts as an ordinary e-bike: no driving licence, helmet, registration plate or insurance. That applies to the restricted setting only.

How far do I get with two people?

The 120 km applies with medium assistance. With a passenger you ask more of the motor, so count on less. The spread of 90 to 150 km shows how much riding style matters.

Am I allowed on public roads when tuned?

No. Tuned riding is only allowed on private or enclosed property. On public roads the pedal assist stays restricted to 25 km/h; above that, different legislation applies.

What is the warranty and what maintenance does the bike need?

You get a 2-year warranty on everything: frame, battery, motor, display, controller and parts. Charging regularly and good maintenance extend the life of both batteries.