Fat Bike Tyre Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29"

It's thick and made of a material that feels durable.It also fits well.Can't fault it. Feeling safer already.

I've a fat tyre eBike that managed to develop a puncture on it's first outing. A small thorn needle, barely visible and only protruding a couple of mm into the inside of the tyre.If I'd have had this it wouldn't have been a problem. It's quite a tough but flexible liner that easily fits inside the tyre and stays in place, even when you're struggling to get the innertube and tyre back on the rim. I tried to pierce an unused part of it and it was really hard.This may mean you don't need to use Slime inside the innertube (which has a limited lifespan once applied anyhow). Certainly means you'll have more confidence you won't get a puncture in the first place.Considering how much of a pain it is to remove an electric bike tyre (especially the ones where the display means you can't put them upside down to work on the bike), it's worth every penny.

I'm running these in a 26 x 4 Fat Tire Electric Bike configuration that weighs in at 65lbs already, and these will add roughly 1lb to each tire, however I find that an acceptable trade off as apposed to getting flat tires out on the trail.There are numerous other options on AMZ that 'appear' to be constructed/manufactured in exactly the same material as these, at a Much lower price point, so it may be worth it to you to shop one of those alternatives if price is at the top of your criteria for this purchase. That being said... these are very heavy duty and are Extremely difficult to puncture intentionally... so I'm confident that they will perform as expected on my rides since I'm pretty sure I won't be running over any knifes or scissors out in the wild.As far as the installation goes, the images show two options...1) de-beading your tire from one side of your wheel and simply slipping these in and and trimming the excess...2) taking the wheel completely off the rim and placing these in the tire....My recommendation is to use option 2 and make sure you're placing these in the tire exactly where you want them. I also recommend once inside the tire, re-insert the inner tube and adding just enough air to keep these EXACTLY where you want. You COULD also use a small amount of 'temporary' adhesive of some sort to keep them in place if air in your tube inhibits installation too much.All in All these are well made and are going to do what they're designed to do... but as mentioned above... other products of this nature are available at much lower out of pocket cost, but the hassle of ordering/returning those if they don't meet expectations my not be worth saving a few bucks to you.I hope this helps

I have these on all of my bike and they help tremendously in the prevention of punctures from glass, nails, goatheads and any other sharp object found in the bike lanes in San Diego. Super simple just cut em to length and once it's in tape both ends together to prevent the strip from shifting when you install the tube. They're also very light and you can't even tell they're in the tire. I've got mine paired with a set of Conti Urban Contacts and a set of Serfas Drifters w/ FPS and rarely get flats. I've had one flat in the last 19 months riding on paved surfaces and light hard pack trails.

I needed something for my jogger stroller wheels because there are too many little stickers or thorns outside on my neighborhood sidewalk and I'm constantly fighting flat tires. These liners are not super thick but seem pretty tough. They don't stay put when you're putting the tire tube in, so you'll have to keep readjusting the liner's position or just have a liner that is sometimes to the side. I don't think a thorn would be able to puncture this liner. It is trimmable, too! So, just get the biggest size and cut it down. I cut one roll down the middle lengthwise. One roll covered both of my 16" jogger stroller tires and both of the 12" toddler bike tires.

I was excited to find this liner for our fat tire ebikes!The liner is 0.046" thick and very easy to work with. I like that each roll is long enough to accommodate 29" diameter tires and you just trim it to the length needed. Installation was straight forward and as easy as changing an innertube.We have 2 folding ebikes with 4" x 20" tires, so this liner was trimmed to a perfect fit.I doubt this liner would prevent puncture from a nail or sharp metal object, it's not that durable but anything that I can do to extend the life of our bike tires or inner tubes and prevent break down on the trail is worth doing.Very happy with this fat tire liner so far.

I think it is a bit pricey but, it is a good way to have extra level of protection and not having to worry for repairs along the ride.