Run these Tanus liners on all our 26" rim bikes including a pair of 1500w powered bikes for just over 3 years now and zero problems (run Schwalbe tires on all the rims). There are a few things you must do though, you must make sure the the hole where the valve goes through the rim is not sharp (use a drill bit or sand paper to remove any lip in your rim), use a good quality thick wide spoke liner tape, cut down the Tanus liner wall to the specified height as required by the width of your tire (dont just shove the liner in the tire), and the big thing to stop tire spinning is to use a normal size tube for your tire and NOT down size the tube as Tanus suggests! Pump to about 25psi and as the foam compresses a bit (which it will) inflate to about 28/30psi to compensate, the normal size tube will stop the rotation by gripping the side of the liner tightly. When I have taken a tire off to change, the liner has been at about 60% its original thickness after 2 years, which I would consider fine. Also no flat spots that I can feel when riding if its stood up for several months in one position.

Now.. I’m convinced Tannus Armour insert is a Scam!! Hopefully there’s a company out there who make this kind of protection in synthetic rubber. Now that would changed the game!

Two things: 20lb pressure is high for a 4" fat tire bike with most tires. I suspect that a smaller tube to compensate for the tannus armor space taken in the tube would NOT push the armor nearly flat. The combination of both = these results.

Prob pay 35 cents in production 😂

Calisse, osti! I had the exact same two problems. Shrinking protection, and interior movement wearing out a tube. I ran mine at 25 psi in 3" x 20" tires on a Rad Mini bike. I got flats, so I ripped them out angrily, and noticed how thick they are. I cut it and put a caliper on it, and measured exactly 4mm. That may be better than nothing, but the marketing says 15mm, and the advertising pictures illustrate that 15mm thickness and show a nail that can't reach your tube. But that is simply NOT what you get after a month of use. I spent money on 4 of these, and smaller tubes to go with them, and have since pulled them out, and am back to just running slime in my tires. FALSE ADVERTISING. WASTE OF MONEY!

UPDATE. I knew I read it somewhere, so I got out my Tannus installation guide and on page 3 under Tips For Installing Tannus Armour it states (It is common for the Amour to compress over time. It still is providing shock absorption and puncture resistance but will perform better when properly maintained. To minimize compression deflate the tires while not use. This allows the Armour compound to rebound to provide ideal performance.) So does that mean when your not riding your bike, your suppose to let the air out of the tires? I'm sorry but that's not happening. I don't know how everyone else feels, but if I would have known that earlier, I would not have purchased the Armours.

Still getting these, but glad you pointed out the issue. Will definitely deflate every so often.

Tannus Armor - a scam??? Absolutely!!!

Could be the geometry of the tire that's causing the slip of the liner (along with having higher torque on rear hub from the e-bike). I've heard ppl using talcum or baby powder to keep the fiction down in tannus liners. The slipping issue may be less likely in a more narrow tire. Maybe 2.5 and down.

thank you for making trhis video. i was about to buy a tannus liner. you saved me a lot of time and headaches

Wow! I never would have thought that they would essentially flatten out, but if I think about it I guess I don't know why I didn't think that would happen haha. I mean all-foam compresses eventually right, and especially with the weight of an Ebike plus a rider, I would imagine it probably doesn't take that long. I think I heard they recommend that you deflate your tire after every ride and then pump back up before you ride but...come on... that is such an inconvenience. Thank you for showing!

These work VERY well to prevent pinch flats. I haven't had one since installing. I wouldn't put in more than 20 psi.

Thanks for making the video. I always wondered how foam would stand up over time and this is the first review I've seen that shows how they do.

Any update on this.. ?? What did Tannus say when you called them??

Too thin now to protect rim Scam

Thanks for the heads up, tannis is basically a scam!

Do you need a special tube for that red foam or can I use it with my original super 73 tube?

Thanks for the video. I was wondering about Tannus Armor - specifically why not just get a heavier/thicker carcass tire instead of the armor? But you just gave me a better reason to avoid the "Armor".

i got a flat on my rad runner. i had to push my bike 5 km home. the whole time i was thinking about this thing but glad i found your video.

I'm glad i see this video. I almost buy this product but decided to buy Mr.Tuffy instead. I will install it sometime this week.

I'm still waiting for a Completely Solid Foam Insert for my Fat tire Trike.

I will go to hardware store Grab a Pipe Insulater They ARE THICK 5 BUCKS FOR BOTH TIRES GLUE ENDS TOGETHER 5200 HOLDS 5200 LBS

Maybe hit it with some rubberizing spray it keep it from slipping? Would likely resolve the slipping, the compression I think is a known issue unfortunately. Foams compress it’s just a fact. Maybe someone will come along with a better solution

Yup, I've seen the same thing happen to other bikes. Completely flat after a few months or just from sitting in the sun for too long

Just got a flat this evening on front wheel and guessing it's related to its valve! Installed tannus armour a few weeks ago! Interesting I'm in MTL also! It was not possible to ride my fat bike but remember somewhere read you can even ride with deflated tube. Had to walk to home!! Just going to put the bike on repair stand...

thanks for the input!!!

I wonder if it is too much weight? I mean, the combo of a rider and this heavy bike.....or is it the material? I have 700 x 23 Tannus solids on my road bike and the foam has not yet 'shrunk'. It does make the bike about 1 to 2 mph slower.

i had this idea of putting a strip of kevlar tape inside the tire, bonded with epoxy, any thoughts?

I've been running Tannus on a 4x26in Juiced RipCurrent S. No flats for 3 years, 4000+ miles with Vee Zig Zags. My original Kenda had a flat in 500mi, a tree branch. Now, I have no doubt that foam gets thinner after a while, but I'm not seeing it. Maybe less pressure on the larger tire than the smaller one you have. Anyway, nice review. Thanks.

I heard they say to let the air out of the tire when not in use as well as less air pressure. It won't flatten out as fast I suppose.

These things will go paper thin if you don't deflate them periodically . Liners work best so far but I am giving tubeless a try right now to see what I like best. So far going good but there is maintenance with tubeless. Like checking the sealant.

That is a HUGE DEAL, OR FALSE ADVERTISING on the liner companies part. That should never get thinner than originally put into the tire. I'm upset.

I just had tannus amour inserts installed on the wheels of my electric speedbike and after one ride I can't help but feel that there is a loss of performance and speed. There is a slight wobble in the rear wheel and I now use up more battery than I did without the inserts. I think I'm probably going to have them removed.

When are they going to come up with better deflection inserts? Foam will just absorb thorns and prickly things, as aposed to the thick silica/plastic liners which dont absorb, more along the lines deflect the shrapnal.

wow thanks for the heads up, I put those in my bike, waiting to see the result hopefully it last long enough

Have you tried the huntsman vs the speedsters? It's the same company, and I'm wondeing which to get. The huntsman look more rugged and are 1 lbs heaviers then the speedsters. I'm wondering how the extra weight woudl affect the acceleration and top speeds? Also wondeing how the offroading and roie noie would be compared between the two tires.

I use FLAT OUT which is liquid Teflon with a 10 yr warranty made by multi seal...over 4000 miles

Thanks for the info. I haven’t installed mine yet but now I’m concerned. Tannus recommends you size down your tubes. Did you use smaller tubes or did you reuse the tubes you originally had in?

If you dent up (not crack) the rim a bit inward by riding up stairs with low pressure, wouldn't it make it harder for the tire/tube to rotate independent of the rim?

I have a set of tannus armour on my electric mountain bike, but after 2k miles I had an inner tube burst with 35lbs of pressure in it (the tire says 50psi but with the tannus in there it is a guessing game for pressure but the tannus was squeazed flat maybe eventually it would puff up again? I have a new recumbent trike and I think I am ordering mr tuffy's and 3 schwalbe marathon plus's (which is about the same price and they are known to hold up for several thousand miles

Thanks for testing the lack of durability of Tannus "armour". Mounting tires on rims is a pain; glad to have you do it. Speaking of which, I noticed the painful gash on your wrist. What a price to pay for your audience! Keep that clean and bandaged to minimize scarring. Retired in Sacto.

Installing it gave me tannus elbow🙃

I brought 2 of these this year installed them so i could ride to work, suffered the same issue on both within a week or so of each other, now i am scared of going to work on my bike because i was over a hour late because i had to walk with the bike.... and walk home the next day

The thick part is not 1” to 1.25” thick as you said. They are 15mm (5/8”).

Good Video!

25 PSI is a lot my tires are rated for 20 and when I have the taranis 15 PSI is the Max

Tire popped with Tannas armour on. Just go with mr tuffy liners and flatout. Wasted money on that pool noodle tannas

I have been very skeptical about these liners. I just spoke with someone else and they said that the bike has to be elevated off the ground when not in use. SAY WHAT? No thanks. I'll stick with my Mr. Tuffy and Flatout redundancy. I just pulled a screw out of my back tire. It also pierced the Mr. Tuffy, but the FlatOut had it sealed in just seconds.

hi did you use the suggested smaller tube inside or did you use the tube that came with the bike? the facrtory recommends using a smaller tube and im just trying to figure out how that happened, you should use the warranty and get your money back.

Holy Crap, I think we just need Tires that are made of Kevlar amd don't allow anything through it.. Thanks for this .... Just FYI, so many riders love these . ??

Hi there🙋🏼‍♂️😃 My Man,. Can you tell me if those Phatty Bike Bro's are still in Buissines? Tryin to Order tha Rear Wheel Rsx 5 Style Life Style 😃 Im from Switzerland ., seems kind a hard to get in Contact with them RimHub Builders..😅 Id Love to order one.. but... Can you help out my man ? 😃🙋🏼‍♂️🥳✌🤓

You are over inflating the tires. Tannus says to keep the air pressure 10 pounds below the maximum for the tire. I keep mine at 13 PSI or below.

Did u take out all or most of the air when not in use? “Supposedly, Tannus says the foam needs a chance to rebound back to shape.”

Can i pop a few drops of glue in there?

did you contact Tannus? same thing happened to me after 50 miles ran over a 4 inch nail of course nothing will stop that but the foam insert was so flattened my tire was rolling off the rim after 10 feet of blowout (HyperScrambler 20x4 inch wheel) i bought these for run flat capability and armor...2 rides and insert is cardboard thin, don't even think of riding flat, it's all tire and rim...very disappointed, like $170 disappointed calling Tannus tomorrow for refund

Thank you !

Nobody pointed out his cut on the wrist? I wondered what it was from lol mysterious bike accident, power tools, skating idk maybe parkour or just working with stubborn bike parts

I just don't like the fact that after a few months or what not, they are flimsy looking and like "bubble gum" as you said... smh

Their 20" line is a more recent addition to the tannus products. This doesn't happen on a 26"+ wheel. The 4" width could also be the issue🤔 It's also possible that your valve stem got damaged and finished off by other means. Maybe one too many wheelies🙃. Give it another shot to see if it happens again at least

I will check mine tomorrow

Omg I’m scared now because I bought a pair to put on my bike 😢

Mario e-bike! Don’t see many of these ;) nice ride

damn I almoist bought this … I need help ! finding puncture proof / resistance !

You never want to double bag it.

DUDE!! how has no one mentioned that GASH on your right wrists...WTF happened there? Cool vid by the way

This is why i use metal valve stems with a locking nut. The rubber stems break all the time

Do they make Tannus Tires for 20" 4.0.If so where to get them what website and what's the name of the Tannus Tire.A Tannus Tire is something that never gets a flat ?

Going to be honest with you it sounds like you're putting in too much pressure

Mine flatten to 3 mm after 4 months of using. I'm not sure if it's worth the money.

They say you're supposed to deflate them when not in use.

You also had mad torgue with that mid drive.....

I could not fit mine on my 26 inch 2.1 width mtb tyres even with a narrower inner tube. I have to go down a tube size since the thickness of the tannus armour changes the circumference inside the tyres. Arrghhh...

These are junk . After about 4 months they flattened to about 1/8 the thickness . Two things happen . 1 . tire overinflation . And stem damage .

Tannus adds weight, hassle and slows you down AND they are expensive. Not worth it. I have gone tubeless on all of my bikes for thousands of miles and I have only had 1 flat. While riding the Tour de Houston ON the streets, my rear tire took a 3 1/2" nail!!! I fixed it in a couple minutes with my own home-made remedy and the tire has held air for 6 months!!!! Because I was tubeless I didn't have to remove a tube or tire, all I did was put a little Gorilla Glue over the hole, then stuck the tip of a sticky tubeless plug over the hole, then I put more Gorilla glue over it and 6 months later, the tire holds air like a champ. I have bombed over roots, dirt and gravel without problems. This is much cheaper and much easier than Tannus liners.

Hi, my tannus for a year of use, released in the winter. The sides are 0.5 mm, the thickest place in the middle is 2.5 mm thick !!

Box literally says to drop air pressure when not riding and also to leave bike in the sun to heat them up occasionally.

Hi *Urban Cargo Bikes.* Were you able to reach out to us about the tire insert compressing? There could have been a bad batch? Here is some more information on compression: The armour will compress some after it’s installed depending on the pressure of the tire. The higher the psi the more condensed the Armour will become. If you wish to keep the Armour as thick as possible then maintain a lower psi. You may also deflate your tire if you’re not going to be riding for a longer period. This allows the Armour to rebound back to its original size.

It seems more like user fault rather than the product. 🤷🏻‍♂️ Tons of good reviews from people that are riding real bikes.

Thanks this made me buy mr tuffy instead

Valve stem failure: It is NOT the Tannus Armor. It is your rim. Fat tire rims have a hole drilled for the valve stem that is awful! It typically has burs/sharp edges left from the drilling process and only works for METAL valve stems (NOT RUBBER). If you are using inner tubes with rubber valve stems, you have to drill them oversize and install plastic or rubber gourmets so the valves stems don't get cut/deflated/and sheared off. DO NOT BLAME Tannus!

Yep 5200 & Rhino up a pair Of Pipe Freeze Insulators / FLATOUT TUBES AND BUY A NON FLAT TUBE

Tannus recommends that you use the appropriate inner tube size... did you use their chart to use the appropriate inner tube... they recommend a smaller size tube and lower air pressure... to make up for the lesser space that the Tannus liner is taking up... It sounds like you used the wrong size tube and over filled the air.... which in turn squashed the liner.... and please the next time put a band aid on... it was eating when I saw that gash on your wrist... Lincoln Mann...

Thank you for your review. I’ve read the other comments, and if all that is required in order for “this” product to work than it is not worth it. I’d rather run the risk of getting a flat which was still there anyway, and there are if not as good potentially better options out there like solid tires that are on e scooters which Warri 100% of the time.

Thick 5200,will stop a nail in most cases Just goop up I side of tire

I found them to be very bad as well. Also filmed it the problem.

I fell for there scam to, they do nothing to stop nails, save your money Tannus armor are garbage

The item failed you because you failed to maintain the item. Tannus instructions do say that you should periodically deflate the tires substantially when not in use, in order to allow the product to regain and maintain its form. Anyway, there are other things to use if you don't like Tannus, but it is certainly not a scam, simply because you failed to take care of it.

Just thick enough to hide sharp objects So u flat twice

Same thing happened to me, Tannus is over-hyped trash. I finally got a roofing nail puncture, they certainly don't "run flat" as promised and the worthless mash of very tight fitting foam rubber inside the tire make roadside repair/replacement of the inner tube nearly impossible. Thanks Tannus!

User error

what happened to your wrist my friend.

Perhaps of u doubled them up against their CLAIMS

W O R D

I will TAKE A REFUND

Of course the idiots who practice planned obsolescence don't care if you get frequent flat tires!

Thank you for that information I was going to buy these my friend, I suppose Tannus will have to go back to the drawing board 🤔

Totally A Scam Get them now paper thin Smallest thorn punctures

Take 5200 3 m Attach Rhino to Thin Foam Add Flat Out U a hokesshould no better Expensive e bikes

Hmmm ... Those are Speedster Tires and they have over Ride technology for puncture resistance. Personally I don't think you want or need to use Tannus Armor with such tires. Next thing to think about is the Tube itself ... after all they do go bad ... I doubt very much that it happen the way you think it happened ... sorry TD! It appears you didn't follow directions ... I did not want to deflate and inflate tires or having to guess at when to, so I decided to go with Flatout myself for now. But since I have a bad back I don't think I need an off road tire so I'm looking for something similar to the Speedster tires ... less noise and smoother ride.

Assuming you changed out the original inner tubes for the smaller size recommended by Tannus and didn't inflate them beyond their adjusted pressure requirements which probably caused your valve stem to tear); it states quite clearly on the retail packaging to deflate the tyres when not in use and this will allow the compound to rebound to its former shape. It also states that you can accelerate the rebound process by leaving them in a warm area or further still in a hot, steamy environment. You wasted a lot of people's time and slandered a decent product for the sake of not reading the information provided to you.