Tumble 2-Pack Kevlar Fat Bike Tires 20“x4”

  • 20"×4"
  • 30 PSI
  • 60 TPI
Extra Discount With


Model: Tumble 1633
Size(in.): 20×4.0
ETRTO: 102-406
Tire Type: Clincher
Weight( kg. ): 0.65
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Hycline 20*4.0 inch fat bike tire

Tumble Kevlar 20“x4.0” Fat Bike Tires for Electric Bike, Snow Bike, and Mountain Bike, up to 60 TPI

The American choice for adventurous cyclists seeking a reliable and durable tire that can withstand the toughest terrain. Designed with high-quality Kevlar material, these tires offer exceptional puncture resistance, ensuring you can explore new trails without worrying about flat tires. Combining Kevlar and special rubber technology makes the tire lighter and more wear-resistant. Perfect for mountain beach riding for long-distance and aggressive riders!

The 20x4 inch size of these folding tires provides excellent traction, allowing you to tackle muddy or rocky paths confidently. The folding feature makes these tires easy to pack and transport, making them a perfect choice for backpacking enthusiasts.

Enjoy riding experience with Hycline Kevlar Folding 20x4.0 Fat Bike Tires and the freedom to explore new terrain with love.

2-Pack Kevlar 20x4 Fat Folding Bike Tires - 60TPI


  • Material: Premium rubber 
  • TPI: 60
  • PSI: Max to 30
  • Anti-puncture technology
  • Folding Kevlar bead
  • Max Load: 266 lbs single tire


  • Made of premium rubber for excellent puncture resistance. These tires are suitable for use on beaches, snow, rough terrain, and wild.
  • The tight convex knobs on the tread pattern offer superior traction and grip, and the anti-puncture technology ensures durability.
  • The folding carbon steel bead allows for easy installation and removal.


2-Pack Kevlar 20x4 Fat Folding Bike Tires 2-Pack Kevlar 20x4 Fat Folding Bike Tires 2-Pack Kevlar 20x4 Fat Folding Bike Tires  2-Pack Kevlar 20x4 Fat Folding Bike Tires
20x4.0 26x4.0 20 / 26x4.0 20 / 26x4.0
40 P.S.I 40 P.S.I 30 P.S.I 30 P.S.I

    Note: this package includes one tire only, and does not include wheel rims. It can be used on both the front and rear wheels.

    20*4 inch fat bike tire application

    Customer Reviews

    Based on 14 reviews
    Whoops by Me

    First I admit I bought the wrong tires. I wanted the 30TPI 20psi series because of the wear and performance I got out of a previous set but my mistake. I replaced my back tire today (1300 miles on it) because of the real possibility of a blow out and went for a 30 mile ride on my regular trails. This is what I have to say so far.
    1. Was a little more time consuming to mount than the regular 30 TPI tires but was able to accomplish with no blow outs.
    2. Even with only 1 tire replaced there was a noticeably smoother and a tad faster ride.
    3. Ran over the same gravel, tree limbs, wood bridges and semi paved trails in spots with no problems even though new tire is lighter and thinner than the one it replaced.
    4. Found out that the other new tire fit perfectly in a pannier pouch while folded while I wait for the other old tire to wear down to a point it needs replacement so I have a spare while I test.
    So would I recommend these tires and will I buy them again? I will just say that at this point they seem to be doing a good job but I will need to see how they perform over time. I do about 150 miles a week so any weakness will show up pretty fast. I don't feel they will give me the durability of my previous 30TPI tire due to it's thickness but time will tell.

    Cdub Corner
    Big cool tire

    I'm trying to retrofit my old bike,When I unwrapped this folded tire, I noticed some wrinkling in the sidewall, I was worried it was defective, but when it was inflated, the wrinkles disappeared.
    I had mounted it on the rear wheel of my bike .Easy to install, but need tools .Inflated to 20 psi-went for a test drive. It works fine and after 15 miles of testing.Excellent traction in dry or wet conditions.Large diamond-shaped side knobs provide stable grip when cornering.
    Great tires for a comfortable road feel. I will buy another one to replace my front wheel so they can match.
    Overall this fat tire is a good replacement for my old tire. Good quality for the price x

    Sergio Moreno
    Great tire

    Had a 4.9 rear and it kept blowing off. Got this tire and it's been a bit. Its held up to over 25+ mph, hasn't came off, and fit well originally. It held up on the sand with great traction. Make sure to pump it up slow and make sure it's seating correctly when it's first seated.

    Shallen Morgan
    Keep this as a spare

    During the past two years, I switched from regular mountain bikes from the early 2000s to Electric bikes that have these large 20x4 tires. After a long time searching best price and quality I found the best type that fits all of our fat tire e bikes. My local shop selling same sizes tires for 75 usd so this one is almost half the price and really good quality.

    Kiffy Wils
    Good tire for the price

    The material of this tire is thick and durable. It rides nicely over different terrains such as sand or rocky areas. It provides good traction. It’s a great replacement, if not better than the one I originally had on my bike.

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    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 service@hyclinebike.com
    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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