Ecarpat Arena 20×4.0 Fat Tire Bike

  • Orange
  • Blue
  • 20”x4.0“
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Return & Warranty

1-Month FREE Return/Exchange
1-Year FREE Exchange Instead Of Repair

Online Service

Please call +1 (669) 696-7538

Online: Monday to Saturday 9AM-5PM PST

Unleash the thrill with Hycline all-terrain 20×4.0 Fat MTB! Ecarpat Arena 4.0“ fat tires boast a unique shock-absorbing design for ultimate comfort. Featuring a full Shimano gearing kit and wider tires, easily conquer any terrain. Safety is our priority with a double disc brake system, ensuring immediate stops in emergencies. Crafted with a rugged high carbon steel frame, the Ecarpat Arena fat bike provides a reliable and adventurous ride. Let the fun begin!


Frame Size 13.5 inch
Frame Material High-carbon Steel, Optimize Routing
Brake Front and Rear Mechanical Disc Brakes
Front Fork Suspension Fork
Speed SHIMANO 7 Speed
Tire 20×4.0 inch Hycline Fat Tire
Rim 20×4.0 inch AV Aluminum
Rider Height Ages 6 and up, or 4 to 5 feet in height

Bike Dimensions

Height (in.)
Length (in.) 61.00
Width (in.) 24.50 Tire/wheel size (in.) 20×4.0
Frame Size (in.) 20x12 Rider Height 4'0"-5'2"


Gears Shimano 7-speed drivetrain

20-inch Fat Tire Bike with 7-speeds for kids - Shimano transmission makes our mountain bicycle easier to climb, grip shifter, and rear derailleur gearbox kit for easy and convenient gear changes during riding.

Stable and light mechanical disc brake system

The brake system adopts a double-disc brake system. Safe braking, instant braking and stopping. Both front and back are equipped with mechanical disc brakes to protect your riding safety.

Unique Shock Absorbing Design

In order to take care of children's hands, we feature shock-absorbing forks to absorb the vibrations generated during the movement, which greatly improves the comfort of children during the riding process.

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Customers often ask

How can I shop at Hycline with a lower price?

1. You can click the "Rewards" button on the left to save money on this purchase! Submit your account and earn points. Redeem points for coupons! >> Learn More
2. Browse the “Deals” page on the homepage. GET IN 
3. Free shipping on orders over $25

How do I check the shippment of my package after placing an order? After-sales service?

After you place an order, you will receive our email and tracking number. You can track the logistics information HERE. We support 30 days returns and exchanges, contact us at
or tel: 1-(669) 696-7538

What should I consider when choosing bicycle tires?

When selecting bicycle tires, consider the size, tread, width, durability, pressure, weight, and riding style. Choose a tire that fits your bike's wheels, is appropriate for the terrain you'll be riding on, is durable and puncture-resistant, can handle the recommended tire pressure, and matches your riding style.

What size bike tire do I need for my bike?

To determine the size of tire you need for your bike, you can look at the sidewall of your current wheel, which will have the tire size printed on it. The size will typically be expressed as a combination of numbers and letters, such as "700x23c" or "26x2.0". The first number refers to the diameter of the tire, which is measured in millimeters for metric sizes (e.g. 700) or inches for imperial sizes (e.g. 26). The second number refers to the width of the tire, also measured in millimeters or inches. The letter at the end indicates the type of tire (e.g. "c" for clincher)
If you're unsure about what size tires to get or have any doubts about compatibility, you can consult your bike's owner's manual or contact the manufacturer for advice.

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