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MATSKY 20x4.0 Fat Bike Tire, Folding All-Terrain Tire for E-Bikes and Mountain Bikes, Suitable for Sand, Snow, Gravel and Trail Riding

★★★★★ 5.0 · 8 customer ratings
$42.99
Product description Expand

The MATSKY 20x4.0 fat bike tire is designed for electric bicycles and compact fat bikes that require responsive handling and stable control for everyday riding. Built with a 30 TPI casing and a maximum inflation pressure of 20 PSI, it provides balanced support for everyday riding and light off-road use. The dual-function tread pattern with biomimetic grooves is designed to maintain stable contact on paved surfaces while supporting controlled turning during low to moderate speed riding. The reinforced rubber compound helps maintain consistent flexibility and wear resistance under regular riding conditions. This tire is suitable for mixed riding environments including city roads, park paths, light trails, sand, and snow. It is intended for riders who need a compact fat tire option for general-purpose electric bike use and everyday mobility. The folding bead structure allows easier storage and transport. It is compatible with most fat bikes and electric bicycles and can be used on both front and rear wheels depending on bike setup. The tire is folded during packaging. Please allow 1–2 days for the tire to regain shape before installation. Please check size compatibility before purchase. Package includes one bicycle tire only. Wheel rim and inner tube are not included.

  • 〖MATSKY 20x4.0 Fat Tire Size〗MATSKY 20x4.0 fat bike tire is designed for fat bikes and e-bikes with a 30 TPI casing and maximum inflation pressure of 20 PSI.
  • 〖Biomimetic Tread Performance〗Groove pattern provides consistent grip on straight roads and controlled handling during cornering on uneven terrain.
  • 〖Reinforced Rubber Compound〗Built with premium rubber designed to maintain flexibility and wear resistance during regular riding use.
Minimum 1 · Maximum 15 per product
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PRODUCT DETAILS

Designed for the way
you really live.

01

〖MATSKY 20x4.0 Fat Tire Size〗MATSKY 20x4.0 fat bike tire is designed for fat bikes and e-bikes with a 30 TPI casing and maximum inflation pressure of 20 PSI.

02

〖Biomimetic Tread Performance〗Groove pattern provides consistent grip on straight roads and controlled handling during cornering on uneven terrain.

03

〖Reinforced Rubber Compound〗Built with premium rubber designed to maintain flexibility and wear resistance during regular riding use.

04

〖All-Terrain Riding〗Suitable for city roads, park paths, light trails, sand, snow, and other mixed riding environments.

05

〖Folding Bead Construction〗Foldable tire design allows easier storage and transport when carried as a spare tire.

06

〖Wide Compatibility〗Compatible with most 20x4.0 fat bikes and electric bicycles. Suitable for front or rear wheel installation.

07

〖Installation Note〗Tire is folded for shipping. Allow 1–2 days for shape recovery before installation.

AT A GLANCE

Specifications

Bicycle tire size20x4.0
Bicycle tire tube typeBicycle Tire Tube
Wheel size20 in
BrandMATSKY
Warranty information1-Year Limited Manufacturer Warranty
CUSTOMER FEEDBACK

Product reviews

5.0★★★★★8 ratings
★★★★★

Good price, good quality

“Fit perfect, good quality especially for the price Fam”

KimCustomer review · July 12, 2026
★★★★★

All-Terrain Fat Tire for E-Bikes That Performs Well on Mixed Surfaces

“This fat tire in 20x4.0 and 26x4.0 inch sizes is built for high-performance use on electric mountain bikes and folding e-bikes where the tire needs to handle the additional load and speed of an electric assist system without premature wear or structural failure. The all-terrain tread provides reliable grip across different surface types from pavement to light trail without being dedicated to one specific condition. The folding bead is a practical feature that makes storage and transport of a spare tire significantly easier. The construction feels robust and properly spec'd for the electric bike application. It mounts cleanly and the bead seats consistently on compatible fat bike rims. Rolling performance is smooth and the tread provides confident grip in a range of conditions. For any electric fat bike or e- MTB rider who needs a high-quality and capable replacement tire that is built for the demands of the application, this is a well-made and versatile choice.”

KendellCustomer review · June 8, 2026
★★★★★

E-bike 20" x 4" tire

“received the tire on time. I installed the tire as instructed. The tire handles well on dry pavement. On wet pavement, I used more caution but it handled well. I have not tried The tire on dirt or mud yet. The Con: The tire is a little noisy. The Pro: The tire is a little noisy but pedestrians here are you coming a little better. I would have given them a 5 star but between the noise and mainly there is no raised white lettering as depicted in the picture. A little misleading.”

John GrimmCustomer review · July 15, 2026
★★★★★

An Affordable Replacement Bike Tire With Decent Tread Life!

“This is a solid bike fat tire that has a decent amount of tread on it, although I've seen thicker. There isn't much to say other than it is a reliable aftermarket option if you are on a budget and need something that won't break the bank.”

JestifexCustomer review · May 13, 2026
★★★★★

Good Tire

“Overall, I'm happy with this bike tire. Let me start with the one negative before I get into the good things. The tire is a little thin (similar to the tire that came with my bike) so I'm not super confident it will be able to handle serious offroad riding (sharp rocks, branches, etc). Fortunately I use my bike primarily for commuting on concrete paths and roads so that's not really an issue for me. Now to the positives. The traction is excellent, which is good because I ride my bike in the snow/ice at times. It was surprisingly easy to install on my bike. When it arrived, it was a little warped, but once I inflated it, it straightened out completely and rode smoothly. Overall, this is a solid tire that performs well. Compared to the cost of some mountain bike tires I've purchased this is very affordable. I was able to get over 2,000 miles out of my original tire and this seems to be similar in quality so it should last for a while.”

Kelly BCustomer review · March 31, 2026
★★★★★

Easy replacement for worn out treads

“Used this on a glife racer and at a minimum it's at least the same quality as the OEM tire. They are knobby of course so they make a bit of road hum but that's the tradeoff for having extra traction in loose soil /gravel/sand. They are pretty forgiving in terms of installation and slip onto my rim pretty easily. Much like the other fat tires I have mounted you do need to properly lubricate up the bed when inflating to make sure they seat evenly around the rim or you'll get vibration/bouncing at higher speeds”

William GraceCustomer review · April 16, 2026
★★★★★

Suitable replacement tire

“I recently used this 20x4.0 inch fat tire to replace the worn out tire on my e bike, and it made a big difference right away. The size fit perfectly, and the foldable design made it easy to handle and install. l inflated it to 20 PSI as recommended, and it felt solid and stable on my first ride. The tread design really stands out. On straight roads, the bike feels smooth and steady, and when I turn, I can feel the extra grip holding me in place. It gives me more confidence, especially when riding on loose gravel or uneven ground. I've taken it on dirt trails and rough paths, and the puncture resistant rubber has held up very well. The reinforced compound still feels flexible, but it also seems tough enough to handle rocks and small debris without worry. It rides comfortably on pavement too, so I don't have to switch tires for different terrain. Overall, this tire has been a reliable and durable replacement for my e bike, and it has improved both my traction and overall riding experience.”

StevenCustomer review · February 27, 2026
★★★★★

Perfect Replacement, No More Blown Tubes!

“recently got a new e-bike, and the stock tire kept popping off the rim and causing the inner tube to blow out. I finally realized that the original tire was simply too big, even though it was marked with the correct dimensions. I ordered this replacement hoping to fix the issue, and it did exactly that. It looked almost exactly like the one I was replacing, just with some extra markings, but I was incredibly relieved when the fit was actually correct. The installation was snug but not too difficult, which is exactly how a proper fat tire should seat. The overall quality seems very decent right out of the box. Out on the trail, the grip is fantastic. It holds up remarkably well on mixed terrain and sand-covered roads, providing a very smooth ride without feeling overly sluggish or heavy. While I am still testing the long-term durability, it has survived without a single blowout or slipped bead since I put it on. I am very pleased with the value for money and finally get to enjoy riding my bike without worrying about a flat. (7 masa OY”

NerdyReviewerCustomer review · March 17, 2026

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