Mistakes to Avoid When Buying Your First Fat Boy eBike
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Fat Boy eBikes have a certain pull. The wide tyres, relaxed riding position, and tough look make them feel like the perfect bike for almost anyone. For many Australians, especially around South West Sydney, they seem like an easy way to commute, cruise on weekends, or simply enjoy riding again without worrying about hills or distance.
The problem is that excitement often comes before understanding. First-time buyers can rush the decision, focusing on how the bike looks or how powerful it sounds, rather than how it will actually fit into everyday life. That’s when regret creeps in. The bike feels too heavy, awkward to ride, or not quite right for local paths and roads.
As the owner and founder of Macarthur e-Bikes, this is something seen regularly. People walk in after buying elsewhere, wishing they’d asked a few key questions first. This guide covers the most common mistakes to avoid when buying your first Fat Boy eBike, explained simply and honestly, so beginners can make a confident choice the first time.
What Is a Fat Boy eBike?
A Fat Boy eBike usually refers to an electric bike with extra-wide tyres, often around four inches. These tyres run at lower pressures than standard bike tyres, helping the bike feel stable and forgiving on uneven surfaces like cracked footpaths, gravel, or dirt tracks.
In Australia, fat-tyre eBikes are popular with beginners because they feel sturdy and comfortable. They’re also common with taller or heavier riders, and with people who want a relaxed, upright riding position. The trade-off is that these bikes are usually heavier and larger than standard eBikes, which makes choosing the right model even more important.
Mistake 1: Buying Based on Looks Instead of Daily Use
One of the biggest mistakes beginners make is choosing a Fat Boy eBike because it looks impressive, without thinking about how it will actually be used. A bike that looks perfect on Instagram might not suit daily commuting, school runs, or short trips to the shops.
Some Fat Boy eBikes are designed mainly for relaxed cruising. Others are better for mixed terrain or carrying a passenger. For example, bikes like the Fatboy Harlem eBike V2 are built around comfort and easy access, thanks to a step-through frame and a long two-seater style saddle. This can be ideal for casual riders who want stability and easy mounting. On the other hand, a model like the Fatboy Scrambler eBike V2 has a tougher stance and a scrambler-style design that suits riders who want a slightly sportier feel while still enjoying fat tyres.
The mistake isn’t choosing either style. The mistake is not matching the style to real life. If most rides are short trips on shared paths, comfort and ease matter more than aggressive styling.
Mistake 2: Not Understanding Australian eBike Rules
This mistake causes more stress than almost any other. Many beginners assume all eBikes are treated the same, but that’s not the case in Australia.
Standard pedal-assist eBikes are generally limited to assistance up to 25 km/h, with a maximum continuous rated power of 250 watts. Some bikes include throttles or higher power systems, which may be suitable on private property but need to be restricted or configured correctly for public roads and shared paths.
The issue isn’t that these bikes exist. The issue is buying one without understanding how it must be set up and where it can be legally ridden. Beginners often only discover this after purchase, which can take the fun out of riding.
Reputable Fat Boy models sold locally are usually designed to be configured to meet these rules. For example, bikes like the Fatboy Harlem and Fatboy Scrambler are sold with guidance on speed limits and power restrictions so they can be used responsibly and correctly.
Mistake 3: Choosing the Wrong Frame Style for Confidence
Frame style has a huge impact on how confident a beginner feels, especially in stop-start riding or busy areas.
Step-through frames are often underestimated. They make it easier to get on and off the bike, especially when wearing everyday clothes, carrying a backpack, or stopping frequently at crossings. For many first-time riders, a step-through Fat Boy eBike feels far more manageable than a bike with a high top tube.
This is where bikes like the Fatboy Harlem eBike V2 shine. Its step-through design makes it approachable for beginners, shorter riders, and anyone who values ease of use over a sporty look. Choosing the wrong frame style doesn’t make the bike unsafe, but it can make riding feel harder than it needs to be.
Mistake 4: Underestimating Weight and Size

Fat Boy eBikes are not light. This surprises many first-time buyers who assume the motor cancels out the weight entirely. While the motor helps when riding, weight still matters when pushing the bike, parking it, lifting it, or storing it at home.
A heavy bike can become frustrating if it needs to be moved up steps, through narrow doorways, or onto a car rack. It can also feel awkward at very low speeds if the rider isn’t comfortable managing the weight.
Before buying, beginners should think about where the bike will live. Will it be stored in a garage, on a balcony, or inside a unit? Will it need to be lifted at all? Choosing a Fat Boy eBike that fits the rider’s space is just as important as choosing one that fits their body.
Mistake 5: Believing a Single Range Claim
Range is one of the most misunderstood parts of eBikes. Advertised range figures are usually based on ideal conditions, such as flat ground, light riders, and low assist levels.
In real life, range changes with hills, wind, tyre pressure, rider weight, and how much assistance is used. That’s why battery capacity matters more than a single range number.
Fat Boy eBikes like the Fatboy Harlem and Scrambler models use high-capacity batteries designed to support longer rides and heavier bikes. This makes a noticeable difference for riders who plan to commute several times a week or explore further on weekends. Beginners should focus on whether the battery suits their typical ride, not the longest possible distance listed on a spec sheet.
Mistake 6: Overlooking Brakes on a Heavy Bike
Brakes often get less attention than motors or batteries, but they matter even more on a Fat Boy eBike. These bikes carry more weight and can maintain speed easily, especially downhill.
Strong hydraulic disc brakes are not just a premium feature. They are a safety feature. On heavier bikes, larger brake rotors help deliver consistent stopping power, especially in wet conditions.
Many well-designed Fat Boy eBikes, including the Harlem and Scrambler styles, are equipped with large hydraulic disc brakes for this reason. Beginners who ignore braking performance often realise its importance the first time they need to stop quickly.
Mistake 7: Choosing a Two-Seater Style Without Thinking It Through
The long, bench-style seats on many Fat Boy eBikes look great and suggest the option of carrying a passenger. However, riding with a passenger changes how the bike handles.
Stopping distances increase, balance at low speeds becomes trickier, and the rider must be confident managing the extra weight. Bikes designed for two-up riding usually include features like passenger foot pegs, reinforced frames, and higher weight ratings.
Models like the Fatboy Harlem and Scrambler are designed with two-seater use in mind, which makes them more suitable for this style of riding. The mistake is assuming every long-seat Fat Boy eBike is safe or comfortable for carrying a second person.
Mistake 8: Running the Wrong Tyre Pressure
Fat tyres are forgiving, but only when inflated correctly. Beginners often pump them too hard, thinking higher pressure equals easier riding. In reality, over-inflated fat tyres reduce comfort and grip, especially on uneven surfaces.
Under-inflation can also cause problems, making the bike feel sluggish and increasing wear. Learning the right pressure range for body weight and terrain makes a huge difference to ride quality. This is a simple adjustment that can completely change how a Fat Boy eBike feels.
Mistake 9: Forgetting Everyday Practical Features
It’s easy to focus on motors and batteries and forget the basics. Lights, racks, displays, and charging ports all affect how usable a bike is day to day.
Fat Boy eBikes designed for real-world riding often include bright headlights, clear displays, USB charging for phones, and rear racks for carrying bags. These features turn a bike from a fun toy into a practical transport option. Beginners who skip this thinking often end up adding accessories later, sometimes at extra cost.
Mistake 10: Buying Without Local Support

Even the best eBike needs setup, adjustments, and servicing over time. Buying from a place that understands Fat Boy eBikes makes a big difference.
Local support means the bike is assembled correctly, brakes are bedded in, and the rider gets advice on setup and maintenance. It also means there’s somewhere to go when questions come up or parts need replacing.
How Can Macarthur e-Bikes Can Help You
Macarthur e-Bikes exists to help riders avoid these exact mistakes. As a local Australian eBike specialist, the focus is on matching the right Fat Boy eBike to the rider, not just selling what looks impressive.
Whether it’s a comfort-focused option like the Fatboy Harlem eBike V2 or a tougher cruiser like the Fatboy Scrambler eBike V2, the goal is to make sure the bike suits the rider’s height, confidence level, storage space, and riding plans. Every buyer gets clear explanations, honest advice, and a properly set-up bike.
For anyone worried about making the wrong choice, the simplest step is to talk to people who ride these bikes every day. Avoiding the common mistakes to avoid when buying your first Fat Boy eBike starts with guidance that’s local, practical, and focused on long-term enjoyment, not just the first ride.
Frequently Asked Questions
How long does it take to charge a Fat Boy eBike battery?
Most Fat Boy eBike batteries take roughly 4–8 hours to charge, depending on the charger size and the battery’s capacity.
What’s the best way to store the battery if the bike won’t be ridden for a few weeks?
A common tip is to store the battery somewhere cool and dry at around 40–60% charge, then check it about once a month so it doesn’t drop too low.
Can a Fat Boy eBike be safely ridden on the beach, and what maintenance does it need afterwards?
Yes, but sand and salty air can speed up rust, so it should be gently rinsed, dried, and the chain lightly lubricated after beach rides.
Do Fat Boy eBikes need special racks or car carriers because of the tyre width?
Often, yes—many standard bike racks don’t fit very wide tyres or heavier frames, so a rack rated for eBike weight with fat-tyre compatibility is usually the safer choice.