What a 500W Folding Fat Tire E-Bike Actually Means: A Look at the Likebike Cityfun S
Update on Nov. 2, 2025, 1:42 p.m.
Have you ever seen a bike and just thought, “What is that for?” You might have felt that way seeing a “folding fat tire e-bike.” It sounds like a strange combination, doesn’t it? It has the huge, rugged tires of a mountain bike, the compact frame of a commuter, and the motor of a modern e-bike.
It’s a “jack-of-all-trades” machine, and it can be confusing. But what if it’s not confusing, but just… versatile?
Let’s demystify this category by looking at a perfect example: the Likebike Cityfun S. Instead of just listing its specs, we’re going to translate them. What do all those numbers and terms mean for you, the rider? Let’s dive in, as your guide.
Part 1: The “Fat Tire” Feel (And What 20” x 4.0” Really Does)
The first thing you notice on the Cityfun S is the tires. They’re massive. We’re talking 20 inches tall and 4.0 inches wide.
To put that in perspective, a standard road bike tire is less than 1 inch wide. These are four times wider. Why? It comes down to three things: comfort, stability, and versatility.
- Comfort: Think of that big tire as a giant, cushy shock absorber. The sheer volume of air inside it smooths out bumps, potholes, and cracks in the pavement. When you pair this with the bike’s built-in front suspension, you get an incredibly smooth ride. One rider, DHetzell, even compared it to “a Cadillac.”
 - Stability: That wide contact patch with the ground makes the bike feel incredibly planted and stable. You’ll feel this confidence on loose gravel, wet streets, or just when cruising.
 - Versatility: This is the big one. Those tires don’t care if you’re on perfect asphalt, a gravel path, a sandy beach trail, or even a little bit of snow. They’re “all-terrain” in the truest sense, giving you the freedom to take a shortcut through the park or explore a trail you’d never attempt on a regular city bike.
 

Part 2: The Power to “Fun” (Translating Motors and Batteries)
Okay, let’s talk about the “e” in e-bike. The Cityfun S lists a “500W (Peak 720W) Powerful Motor.” What does that actually mean for you?
Think of the 500W (Watts) as your steady, reliable horsepower. This is the power that makes you feel superhuman, flattening hills and making headwinds disappear. It’s the difference between showing up to work sweaty and showing up refreshed.
So, what’s the “Peak 720W”? That’s your “oomph” button. It’s a temporary surge of extra power the motor can call on for a few seconds to get you started on a steep hill or give you a quick boost.
This power is supplied by a 48V 10.4AH (Amp-Hour) Battery. Let’s use the classic analogy: * Voltage (V) is the pressure of the electricity. 48V is a robust system that delivers power efficiently. * Amp-Hours (Ah) is the size of the fuel tank. 10.4Ah is a solid capacity that gives you a realistic range. The company claims 33.6 miles on electric-only power, but in the real world, using Pedal Assist (where you pedal and the motor helps), you can expect to go much further.
One of the best features here is that the battery is removable. This is a huge convenience. You don’t need to haul the whole 71.6-pound bike inside. You just unlock the battery, slide it out, and take it to your desk or apartment to charge.
This entire system is also UL 2849 Certified. This is a critical, non-negotiable safety standard for e-bikes. It means the battery, motor, and charger have all been rigorously tested by a third party (Underwriters Laboratories) to prevent fire and electrical hazards. It’s the peace of mind you want and need.

Part 3: The “Foldable” Part of the Promise (Portability vs. Weight)
This is the bike’s second superpower: it folds in half. A hinge in the middle of the sturdy carbon steel frame allows you to collapse the bike down to a size of 34.2” x 22” x 28.3”.
What does this practically enable? * The Multi-Modal Commute: Ride from your home to the train station, fold the bike, hop on the train, get off, unfold, and ride that last mile to the office. * Easy Storage: It fits in the trunk of a car, the back of an SUV, or an RV. It’s perfect for apartment dwellers who can tuck it into a closet instead of locking it up outside. * Travel: It makes it possible to take a powerful, capable e-bike with you on vacation.
Now, let’s be the honest mentor. This bike is heavy. At 71.6 lbs (or 85 lbs in the shipping box), it’s not something you’ll want to carry up five flights of stairs. As user J. Groves noted, it’s “built like a tank.” But this weight is also what makes it feel so solid and stable. The “walk button” feature, which engages the motor at a slow walking speed, is a thoughtful touch to help you manage that weight up a steep driveway.
Part 4: Putting You in Control (Gears, Brakes, and Your “Dashboard”)
All this power and versatility is useless if you can’t control it. That’s where the rest of the components come in.
The Shimano 7-Speed gears are crucial. You might ask, “Why do I need gears if I have a motor?” You use them together. Lower gears help you (and the motor) start from a dead stop or tackle an extremely steep hill. Higher gears let you pedal at a comfortable- speed when you’re cruising. And if your battery ever runs out, you’ll be very glad you have them.

The Cityfun S features a Step-Through frame. This design, originally for “ladies’ bikes,” is a game-changer for urban riding. It means you can easily get on and off the bike without having to swing your leg over a high bar—perfect for stop-and-go city traffic, especially when wearing regular clothes.
Finally, the Color LCD Display and controls are your dashboard. This is where you see your speed, battery life, and, most importantly, select your Pedal Assist Level (PAS). The bike has 5 levels. * Level 0: No assistance. It’s just you and a (heavy) bike. * Level 1: A gentle nudge. * Level 5: Full power. You barely touch the pedals, and the bike takes off.
This is what makes e-biking so great. You are in complete control of your experience. You can choose to get a full workout (Level 1-2) or to cruise effortlessly (Level 4-5).

Conclusion: The Bike That’s an “And,” Not an “Or”
So, what is the Likebike Cityfun S? It’s a bike that refuses to be put in one box.
It’s a powerful commuter and a comfortable cruiser.
It’s a capable all-terrain bike and a convenient folding bike.
It’s built like a tank for stability and designed with conveniences like a removable battery.
This isn’t a bike for an elite road racer or a hardcore mountain biker. It’s a bike for the rest of us. It’s for the commuter who wants to beat traffic, the apartment dweller who needs to save space, and the adventurer who wants a single, reliable bike that can handle a city street as well as it handles a park trail. It’s the “yes, and…” of e-bikes.