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The Hycline Fat Bike Replacement Tire is a 20x4.0 inch high-performance, wear-resistant folding MTB tire designed for all-terrain versatility. Featuring a 30 TPI puncture-resistant rubber compound and an aggressive knobby tread, it delivers superior grip and braking on mud, snow, and street surfaces. Its foldable carbon steel bead allows easy storage and transport, making it perfect for mountain, electric, and snow bikes. Sold as a 2-pack with tire levers, it’s a durable upgrade trusted by thousands of riders.











| ASIN | B0BXC2VSN1 |
| Best Sellers Rank | #5,457 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #10 in Bike Tires |
| Bike Type | Fat Bike |
| Brand | Hycline |
| Brand Name | Hycline |
| Color | 20x4.0 Inch/30TPI/2 Tires |
| Customer Reviews | 4.4 out of 5 stars 1,132 Reviews |
| Included Components | 2 pack 20x4.0 inch fat tires, 2 tire levers |
| Item Width | 4 inches |
| Manufacturer | Hycline |
| Manufacturer Part Number | FAT20x4-Pair |
| Material | Rubber |
| Material Type | Rubber |
| Number of Items | 2 |
| Size | 20x4.0 |
| Tensile Strength | 20 psi |
| Tire Type | Clincher |
| Tread Type | Knobby |
| Unit Count | 1 Count |
| Warranty Description | 1 Year |
| Warranty Type | Limited |
| Wheel Size | 20 inches |
T**D
Pleased
It's a good tire. Thicker than the tires that came with my bike and the tread is good. No issues and I'm pleased with it
D**S
Nice tire
Nice tire I would recommend
E**O
The fit perfectly!
Fit perfect on my Heybike Tyson. The price is a steel.
A**O
rire replacemnt
Am using it works great thanks i did need the tire so badly ok highly great thnks ok
M**0
Foldable and works great
It is a foldable tire so you can have it as a spare and carry it with you. I have installed it and it works as expected.
G**R
Unsafe Bead Fit – Tire Popped Off Rim
I purchased the 20x4.0 version as a replacement for the factory tire on my Jasion e-bike. Even though the size matched and I inflated it to the recommended maximum of 20 PSI, the tire bead did not fit the rim securely. After installation, the tire unexpectedly popped off the rim, creating a dangerous situation. I’ve installed many bike tires over the years and this one seated much more easily than expected, which should have been a warning sign. The original factory tire required much more effort to mount and stayed securely in place. I would recommend spending a little more for a quality Chaoyang or CST tire, especially if the bike is ridden by a child. Safety should come first.
B**C
Very nice Whitewall tire for your fat bike!
So, I have a thing for whitewall tires. Not sure if these would fit the bill, so I tried the free Vine offer for the first one. I prefer a more flexible sidewall, and I wasn't sure if a 30 TPI tire would give me what I was looking for. These are a little stiffer than I prefer, but I just love the aesthetic, so I purchased a second tire to give them a test! First off, they are folding, but not the smallest package. From my first picture they come out a little over a foot long, so that might be a bit to put in the saddlebags. I got the tire in winter. The cold does affect the rubber, making the tire stiffer overall. Unfolding took some effort on the first tire, so I let the second warm up a bit before getting it into shape. In any case, it took a bit of effort to work the kinks out of the bead, as you can see in my second picture. Mounting them wasn't that bad, but they did argue with me. The tires are unidirectional, so one needs to pay attention to that when putting them on. The tread pattern has a distinct V, and there is a small arrow on the sidewall. I recommend inflating them with a hand pump, paying attention to where they were folded. That is where mine liked to pop off the rim. Once I got them in place at low pressure, they seemed to settle in pretty good. They are a little loose on the rim, as they are not tubeless. With a little work the beads seated evenly, and the tires ran true. I mounted them on a Gravity Bullseye Monster. I got a chance to play in the snow, and the tires run nice! They are rated at 20 PSI, but I started out only at ten due to some problems I'm having with my inflator. On wet pavement, and light snow cover, traction felt fine. Wind chill kept my speeds pretty low, though, not more than 15 mph. Pedal resistance felt normal for a fat tire at that pressure. No auto steer. I aired them down to 5 PSI, and they started to hum on the pavement. (Something I like, but it does involve more pedaling effort) Again, nominal auto steer. Finally, in the last shot, I aired them down to two PSI. They held on to the rims, and I rode through about five inches of loose snow. Great traction, and I did not slip climbing a slight grade from a dead stop! Pedaling on asphalt was a lesson in cardiovascular endurance! The tire surprised me with negligible auto steer at that low pressure. I don't know if it was the tire's design, or the wet surface. I may need to take more notes once things dry out a bit. Overall, I like the tire, it looks great, and functions in snow! At the low pressure I was able to run it at, I imagine this would be a great way to compliment a nice fat beach cruiser! (Now I just need to figure out a way to keep them clean!) Edit: We had a patch of dry weather and I got a chance to ride on dry asphalt. At 20 psi, rolling resistance is nominal and the wheels roll fast! When aired down to single digit PSI autosteer is noticeable, but manageable. We have a beveled curb where I live and brushing up against it, the bike wants to steer in that direction, but not alarmingly so. Turning around in two lanes, I do feel some pressure on the handlebar on the inside of the curve, but nothing exceptional. Doing a bit of a slalom the bike felt under control. (Well as under control as possible given the low tire pressure)
T**C
Fixed my problem!
kept getting flat tires and couldn’t figure out why. Replaced my other tire with this one and problem solved. It is a different shape then the factory one that came on my bike originally but I like this much better.
R**S
Great for my ebike
Just the job for the ebike I have just built.
K**I
Solid tire
I would say this is a good tire. I wanted to get something cheaper than this but it is what it is. This is a normal tire that you need on your bike
E**E
Usure rapide
Les crampons sur la bande de roulement du pneu ont déjà l'air à moitié usés après 500 km d'usage! Faut dire que je fais du vélo camping et donc que mon vélo est chargé mais par rapport au Kenda que j'avais à l'origine c'est une usure très rapide pour un usage similaire. Même ultra usé, j'ai jamais eu de crevaison avec le kenda alors qu'avec celui-là en moins de 2 semaines et au bout d'environ 200 km, pouf, j'ai dû réparer une crevaison. Le pneu est beaucoup moins rigide que le kenda, ceci explique probablement cela.
D**L
Good durable commuting tyre
I’ve been using this tyre on my road bike for the last month now and it’s been great. The tread on it is very good for wet road conditions and it’s wearing quite well. I wouldn’t say it’s a very fast tyre as it has quite a bit of rolling resistance but it’s about average for a tyre like this. It’s quite thick and I’ve had no puncture issues yet! I’d say I’ve done about 500-600 miles on it so far in all conditions and for the price it’s doing quite well. It is a folding tyre so would be good as a spare if you carry on at all on your cycle journeys. I’ll update this review if anything drastic happens to it. But so far so good.
R**H
Pretty Good
Forget the images that are shown on this page; no serious road cyclist will put this on their best bike. The tyre is quite heavy and the rubber feels very solid and not particularly pliable. However, it does fit onto a rim easily enough and rides ok. Ideal perhaps for a commuter bike. Considering a high-quality tyre will be twice the price, this isn't such a bad buy. I shall keep it for winter use and hope that it will be reasonably puncture resistant.
Trustpilot
4 days ago
5 days ago