Help & Frequently Asked Questions

A fatbike is an electric bike with extra-wide tires (usually 4 inches or wider) that provides comfort and grip on all surfaces. At Fatbikeklaar.nl you'll find parts and accessories for all popular fatbikes.

At Fatbikeklaar.nl you can find all fatbike parts, tuning kits and accessories for brands such as Qmwheel and Ouxi. Order before 23:59 and you'll have it delivered tomorrow.

Fatbikeklaar.nl sells parts for Qmwheel, Ouxi, Engwe, Phatfour and all other popular fatbike brands, among others.

An average fatbike weighs between 25 and 35 kilograms, including the battery.

Most fatbikes have a maximum permitted weight of 120 to 150 kilograms including luggage.

With good maintenance, a fatbike easily lasts 5 to 10 years. You replace wear parts in the meantime via Fatbikeklaar.nl.

The average range of a fatbike is 40 to 80 kilometers per battery charge, depending on the model and use.

Engwe is a popular fatbike brand from China. For Engwe models such as the L20 and E26 you'll find parts at Fatbikeklaar.nl.

The V20 Pro is a top-selling fatbike, for which special tuning controllers and displays are available at Fatbikeklaar.nl.

Fatbikeklaar.nl offers the widest range of fatbike parts and tuning kits with fast delivery, expert advice and competitive prices.

The V20 Pro and V20 Cross are both popular QMWheel fatbikes, but their parts are not interchangeable: the Cross has a different controller and display than the Pro. So always choose parts for your specific model. Both models can be derestricted with the right kit — once derestricted, the Cross reaches up to 45 km/h.

In the Netherlands, an electric bike may provide pedal assist up to a maximum of 25 km/h. Above that, it falls under the law as a moped or speed pedelec.

Tuning a fatbike for use on public roads is not permitted. For use on private property it is allowed; tuning kits are available at Fatbikeklaar.nl.

For a fatbike that rides up to a maximum of 25 km/h, a helmet is not legally required in the Netherlands. A helmet is, however, strongly recommended for your safety.

Since 2025, a minimum age of 14 applies in the Netherlands for riding a fatbike.

Yes, a fatbike that does not go faster than 25 km/h falls under electric bikes and is allowed on the bike path.

A standard fatbike up to 25 km/h does not need a license plate. Tuned fatbikes fall under different legislation.

A speed pedelec is an electric bike that provides pedal assist up to 45 km/h and legally requires a moped license plate.

Bike insurance is not mandatory for fatbikes up to 25 km/h, but it is strongly recommended because of theft and damage.

In the Netherlands, a continuous throttle above 6 km/h without pedaling is not permitted on public roads. For private use it is allowed.

Only if your fatbike officially has a passenger seat with footrests. Otherwise it is not permitted.

Yes, tuning your fatbike usually voids the factory warranty. Always check your brand's terms.

No. Riding derestricted is only allowed on private property. On public roads you must keep it restricted: the throttle then does 6 km/h and pedal assist 25 km/h. You switch with the supplied killswitch.

On public roads, a derestricted fatbike counts as an uninsured motor vehicle. If you get stopped, you risk a fine and the police can seize your fatbike. On top of that, you are not insured if you have an accident. So only ride derestricted on private property, and restrict your fatbike again as soon as you head onto public roads.

A tuning kit is a set of parts that lets you make your fatbike ride faster than the standard 25 km/h. On Fatbikeklaar.nl you'll find tuning kits for all models.

Usually you need a tunable controller and/or display. On Fatbikeklaar.nl you'll find complete tuning kits per model.

On Fatbikeklaar.nl the tuning kits are sorted by model, so you can see right away which one fits your fatbike. If in doubt, you can contact us via WhatsApp.

Yes, tuning kits are available for the Ouxi C80 and other models on Fatbikeklaar.nl.

Yes, for various Qmwheel models you'll find tuning kits and individual parts on Fatbikeklaar.nl.

A tuned fatbike often reaches 35 to 50 km/h, depending on the model and the tuning kit used.

Yes, with a tuning kit from Fatbikeklaar.nl it's usually a matter of plug-and-play. Every kit comes with clear instructions.

A tunable display has settings to unlock the maximum speed. Combine it with a tunable controller for the best result.

Through the display you can often adjust the P-settings to change the maximum speed. Always consult your display's manual.

The P-settings are parameters for wheel size, speed limit and motor power, among other things.

Set the actual wheel size, usually 20 or 26 inches. An incorrect setting affects the speed reading.

Yes. Like the V20 and V20 Pro, the V20 Cross can be derestricted. You swap the standard controller for a derestrictable controller with a red motor plug (21A, 500W), which takes it up to 45 km/h. All kits are in opvoerkits.

With the derestrictable controller the V20 Cross reaches up to 45 km/h. Restricted it does 25 km/h, the legal limit on public roads. Riding derestricted is only allowed on private property.

First check the colour of your motor plug. With a red plug you need the V20 Cross controller (21A, 500W, up to 45 km/h). With a black plug you have the smaller motor and top out around 32 km/h. Not sure? Use the selection helper.

You unlock an NFC display without any tools: simply hold an NFC card or your phone against the display to switch between restricted and derestricted. Ideal if you often switch between public roads (restricted) and private property (derestricted). Check out the derestrictable displays for your model.

You can see it on the inside of the motor plug, not on the outside. Follow the thick cable that comes out of the motor in the rear wheel to the first plug, cut the cable ties and pull the plug firmly apart. Where the pins are you'll see the colour: red or black. Our tuning guide has step-by-step instructions with photos.

It only takes a minute: 1) put your fatbike on its stand, 2) follow the thick motor cable from the rear wheel to the first plug, 3) cut the two cable ties, 4) hold the plug on both sides, 5) pull it firmly apart (it can't break), 6) look at the inside where the pins are: red or black. See the step-by-step guide with photos.

That depends on your model and your motor plug colour. On the Ouxi V8, V8 Ultra, C80 and C80 Max, a red motor plug means the 250W motor and a black one the 500W motor. On the QMWheel V20, V20 Pro, V20 Cross, S20 and S20 Pro it's the other way around: black is 250W, red is 500W. The GT-2000 has one controller type. Pick your model and plug colour in the tuning guide and you'll see straight away which tunable controller fits.

The controller's plug colour must match your motor's. Red motor plug on your fatbike? Then you need a controller with a red motor plug. Black? Then a controller with a black motor plug. All our controllers have the colour in the title. Don't know your colour? Check it with the step-by-step instructions in the tuning guide.

Red motor plug (250W motor): the Ouxi V8/C80 tunable controller with red motor plug. Black motor plug (500W motor): the Ouxi V8/C80 tunable controller with black motor plug. Both are tunable up to 50 km/h; only the plug colour has to match.

Black motor plug (250W motor): the V20 tunable controller with black motor plug (up to 32 km/h). Red motor plug (500W motor): the V20 / V20 Pro / S20 tunable controller with red motor plug (up to 45 km/h).

The V29 Pro tunable controller with red motor plug (500W motor, up to 45 km/h). To be safe, check your own motor plug with the step-by-step instructions in the tuning guide.

No. The plug is a tight fit, so you can pull firmly. Hold it by the plug housings (not by the wires) and pull straight apart. Then push it back together; the pins only fit one way.

Usually, yes. The motor cable is often held to the frame with two cable ties, which stop you pulling the plug apart. Cut them with wire cutters and put a new cable tie on afterwards.

No. Tunable displays such as the HC80, M5 and H6C fit both the 250W and the 500W motor. The plug colour only matters when choosing a controller.

Go through the step-by-step instructions with photos in the tuning guide; it takes a minute. Still stuck? Send a photo of the inside of your plug via WhatsApp and we'll tell you exactly which controller you need.

No. The Ouxi C80 Mini, C63 Mini and QMWheel V20 Mini cannot be tuned: there is no tunable controller or tunable display for these models, so they stay limited to 25 km/h. Would you like a fatbike that you can tune (on private property only)? Then take a look at the tunable fatbikes or use the product finder.

A well-maintained fatbike battery lasts on average 500 to 1000 charge cycles, which comes down to 3 to 5 years of use.

Charge the battery at room temperature and always use the original charger. Avoid fully draining it for the longest lifespan.

A fatbike battery is usually fully charged in 4 to 6 hours, depending on capacity and charger.

Yes, but always charge in a dry place with good ventilation and keep an eye on it. Never leave the battery charging unattended overnight.

Yes, you can always just pedal without assistance. It does become harder due to the weight.

No, frost can damage the battery. Always store the battery in a frost-free place.

Preferably charge after every ride and make sure the battery never stays fully empty for a long time.

Yes, replacement batteries are available for most brands. Check Fatbikeklaar.nl for compatible batteries.

Signs include draining quickly, no longer charging, or the power output suddenly stopping. You can find a new battery at Fatbikeklaar.nl.

Most fatbike batteries have a voltage of 48V, with some models being 36V or 52V.

Standard batteries have 10 to 20 Ah; the more Ah, the greater the range.

Higher voltage means more power and speed. 48V is standard for most fatbikes.

Only if your controller and motor can handle 52V. Always check the specifications before you upgrade.

No. Airlines apply a limit of around 100Wh for lithium batteries, and a fatbike battery is far above that. So it is not allowed on the plane, not even in the hold. Going on holiday? Transport your fatbike by car or pick a destination within riding distance.

The controller is the brain of your fatbike. It regulates the power from the battery to the motor. Replacement controllers are available at Fatbikeklaar.nl.

The controller regulates the power to the motor, while the display shows information and allows settings to be changed. Both are essential for the operation and tuning of your fatbike.

At Fatbikeklaar.nl you'll find the right display for each model, such as the HC80, H6c, and M5 displays.

The KS-870 is a popular display that shows speed, battery level, and gear, and is compatible with many fatbikes.

A sinusoidal controller provides smoother acceleration and quieter motor operation than a standard controller. Available at Fatbikeklaar.nl.

Connect all plugs based on color or label. Every controller from Fatbikeklaar.nl comes with a wiring diagram.

A hub motor sits in the wheel, while a mid-drive motor sits at the bottom bracket. Hub motors are cheaper, while mid-drive motors deliver more torque and better balance.

Most fatbikes have a hub motor of 250 to 1000 watts in the rear wheel.

Legally a maximum of 250 watts continuous power for use on public roads in the Netherlands.

Replacing a hub motor requires removing the wheel and disconnecting the wiring. For separate motors, you can head to Fatbikeklaar.nl.

A hall sensor in the motor measures the position of the magnets and sends this information to the controller.

The PAS (Pedal Assist Sensor) registers your pedaling pace and controls the motor to assist you.

A throttle lets you ride without pedaling, similar to a scooter. Replacement throttles are available for purchase at Fatbikeklaar.nl.

The derestrictable controller with the red motor plug, 21A at 500W: V20 Cross derestrictable controller. If your motor plug is black you have the smaller motor and need the black-plug version.

They are the same family: red motor plug, 21A, 500W, derestrictable up to 45 km/h. They are interchangeable as long as the plug colour matches. Always check your own plug before ordering.

A killswitch is a switch that lets you flip between restricted and derestricted yourself, without tools. The Ouxi GT2000 comes with one as standard: restricted the throttle does 6 km/h, derestricted 60 km/h.

Common causes are an empty battery, a broken controller, a defective throttle, or loose wiring. At Fatbikeklaar.nl you will find replacement parts to solve the problem.

First check the battery and all plug connections. If the problem persists, a new display may be needed, available at Fatbikeklaar.nl.

It's often caused by a loose chain, a poorly adjusted brake, or a worn bearing. Check the parts or have a professional take a look.

Check that the wheels are straight and the nuts are properly tightened. Aligning the wheel often helps.

Clean the brake disc with brake cleaner and check for dirt or grease. If the brake pads are worn, replace them with new ones, available at Fatbikeklaar.nl.

Let the fatbike dry out thoroughly before you turn it on. In the event of damage to the electronics, parts can be replaced via Fatbikeklaar.nl.

This is often caused by a loose hall sensor or damaged wiring. Check all the connections or replace the controller.

Check the PAS sensor, cables, and magnet ring. Replacement sensors are for sale at Fatbikeklaar.nl.

Error codes point to specific problems such as the motor, controller, or battery. Consult your display's manual for the exact meaning.

First look at the type, model, and year of your fatbike. If in doubt, the team at Fatbikeklaar.nl will help you via WhatsApp.

First check that the charger is firmly connected to both the battery and the wall socket, and that the light on the charger is on. A battery that is deeply discharged or very cold sometimes won't charge for a while — let it warm up to room temperature first. If the problem persists, test with a different charger. Not sure whether the battery or the charger is faulty? Send us a message on WhatsApp and we'll help you figure it out.

First check that the throttle's connector is plugged in properly and that the cable isn't damaged. Some displays also have a P-setting that switches the throttle on or off. If it still doesn't respond after that, the throttle itself is usually faulty — and it's easy to replace. Please note: on public roads, a throttle that works above 6 km/h is not permitted.

Do a major service at least once a year and check the tire pressure, brakes, and chain monthly.

First clean the chain with a cloth and then apply chain oil to each link. Wipe off the excess for optimal performance.

Turn the adjustment screw on the brake caliper until the brake pads lightly touch the disc without dragging. Hydraulic brakes may need to be bled.

On average every 1,500 to 3,000 km, depending on use and type of brakes.

Use a damp cloth and mild soap. Never use a pressure washer on the electronics.

Yes, most fatbikes are splash-proof. Avoid deep puddles and never spray with a pressure washer.

Store your fatbike in a dry, frost-free place. Remove the battery and store it at around 50% charge at room temperature.

The saddle should be at hip height when you stand next to the bike, so that your leg is almost fully extended at the lowest pedal.

You check the wear with a chain gauge. If there is more than 0.75% stretch, the chain must be replaced.

Turn the adjustment screw on the derailleur until the chain shifts smoothly. Start in the highest gear and work down.

Check your tyre pressure (it drops in cold weather), lubricate the chain a little more often, check your brake pads and make sure your lights work now that it gets dark earlier. Bring the battery indoors after every ride and store it frost-free at around 50% charge. You'll find replacements for worn parts in our parts collection — order before 23:59, delivered tomorrow.

Remove the wheel, take off the old tire and inner tube, and fit the new ones in reverse order. Spare tires and inner tubes are available at Fatbikeklaar.nl.

Most fatbikes have 20x4 inch tires, some models 26x4 inch.

For paved roads 1.5 to 2 bar, for sand or soft surfaces 0.5 to 1 bar.

Remove the brake caliper, take out the retaining pin and replace the pads. You can find new brake pads at Fatbikeklaar.nl.

First remove the handlebar and the front wheel, then loosen the headset nut. A new front fork sometimes requires professional installation.

Most fatbikes use a 1/2 x 1/8 inch chain, always check your own specification.

Loosen the wheel nuts, disconnect the motor cable and take the chain off the sprocket. Be careful with the wiring.

A freewheel is the sprocket assembly at the rear that keeps spinning after you stop pedaling.

Using a freewheel remover, you unscrew it from the hub. At Fatbikeklaar.nl you can find replacement freewheels.

Manufacturers use different plug colours (for example a red or black motor plug) to tell variants apart. A new part must have the same plug as your current part, otherwise it won't fit. For our products, the plug colour is listed in the title or description. The tuning guide shows you step by step how to check your motor plug colour. Not sure? Send a photo of your plug via WhatsApp and we'll find the right part for you.

Use at least an ART-2 or higher approved lock. At Fatbikeklaar.nl you can find good locks specially for fatbikes.

Always secure your fatbike to a fixed object with an approved lock, preferably use 2 locks.

Choose accessories based on your use: saddle bags, phone holders, lights and locks. At Fatbikeklaar.nl you can find a wide range.

A white headlight and a red rear light are legally required in the dark. You'll find both in the range at Fatbikeklaar.nl.

On most fatbikes with a rear rack you can mount a rear seat, for example for a child. Choose a seat that fits your model and check the maximum load capacity of your rack. Always ride restricted with a child on the back, and make sure the seat is firmly attached before you set off.

Use a bike carrier that is suitable for e-bikes: fatbikes are heavier (often 30+ kg) and have wide tyres, so check your carrier's maximum load capacity and wheel width. Remove the battery and the display during transport — that saves weight and prevents damage or theft.

Order before 23:59 and you'll have your order delivered the next business day.

Yes, Fatbikeklaar.nl ships parts to the Netherlands, Belgium and Germany.

The shipping costs are clearly stated at checkout, often free above a certain amount.

Yes, you can return your order within 14 days provided it is unused and in the original packaging.

Fatbikeklaar.nl is an online specialist with fast delivery throughout the Netherlands.

Via the WhatsApp button on the site you get in direct contact with a specialist for advice or help.

Yes, all parts come with a manufacturer's warranty. If there are any problems, we're happy to help you further.

You can pay with iDEAL, Bancontact, credit card and more secure payment methods.

Yes. You check out in a secure environment over an encrypted connection, and your payment is handled by a certified payment provider. We do not store any payment details ourselves.

Yes, as soon as your order has shipped you'll automatically receive a track & trace code by email. Use it to follow your parcel all the way to your front door. Didn't receive anything? Check your spam folder or just send us a message.

Yes, Fatbikeklaar.nl also supplies businesses, bike mechanics and resellers. Contact us via WhatsApp or email for business pricing and larger quantities — we're happy to think along with you.

Yes, as long as your order hasn't shipped yet. Send us a message via WhatsApp with your order number as soon as possible and we'll sort it out for you right away. Is your order already on its way? Then you can return it within 14 days of receiving it.