My Blix Packa Cargo 24" × 2.4" tires have Tannus inserts. Regular pressure is 40-65. I put in Tannus and Flat Out, set pressure at 50psi, went for a slow ride on smooth sidewalks at 10-15mph for 30 minutes and inner tube blew out, tire off rim. Make sure and keep pressure low with Tannus. I was fine at 25psi and thought I was low. My mistake.
REDUCE AIR PRESSURE WITH TANNUS INSERT!
- Thread starter Bjameson
- Start date
smorgasbord
Well-Known Member
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- USA
I see nothing on Tannus' website FAQ about the need to lower tire pressures. What it does say is:
To blow a tire off the rim on smooth sidewalks at 50 PSI with a tire rated to 65 psi, something other than tire pressure was wrong.
To blow a tire off the rim on smooth sidewalks at 50 PSI with a tire rated to 65 psi, something other than tire pressure was wrong.
Tube size when running Tannus is important. I have them on my old RadRunner and never had a issue with them. I ordered the recommended tubes with the Tannus liners.The supplied tubes were good quality that I received, at least to my old BMX rider eye.
Funny about the tire pressure being an issue. I ran my RadRunner tire pressure to the max recommended pressure on t he tire. I did get a flat with the Tannus liners. I forgot what got me (I did a thread response on the flat) but did notice this. The Tannus liner was as thin as a piece of cheap cardboard. I never down-pressured the tires because the ebike never sat for an extended time. Wonder how thin the tubes stretched out to fill the now empty space?
I went back to known and trusted Mr. Tuffy liners. No special tubes, easy to install and don't compress.
Funny about the tire pressure being an issue. I ran my RadRunner tire pressure to the max recommended pressure on t he tire. I did get a flat with the Tannus liners. I forgot what got me (I did a thread response on the flat) but did notice this. The Tannus liner was as thin as a piece of cheap cardboard. I never down-pressured the tires because the ebike never sat for an extended time. Wonder how thin the tubes stretched out to fill the now empty space?
I went back to known and trusted Mr. Tuffy liners. No special tubes, easy to install and don't compress.
Nothing "different" was happening. I have ridden, raced and worked on cars, motorcycles and bikes since I was a child. The bike was almost new. Probably less than 100 miles. Since the Tannus blow out, I have kept both tires at 35 psi and no problems. 35 psi makes them to hard to have any give. Moreover, on the Tannus website it states: For inner tube users, test about 10 PSI (0.68 BAR) less. I wish I had read this before the hassle. But live and learn. It seems obvious, but I don't think of everything, every time. Therefore, according to Tannus, if you are using a tube, like I was, reduce your pressure 10 psi.
Nothing "different" was happening. I have ridden, raced and worked on cars, motorcycles and bikes since I was a child. The bike was almost new. Probably less than 100 miles. Since the Tannus blow out, I have kept both tires at 35 psi and no problems. 35 psi makes them to hard to have any give. Moreover, on the Tannus website it states: For inner tube users, test about 10 PSI (0.68 BAR) less. I wish I had read this before the hassle. But live and learn. It seems obvious, but I don't think of everything, every time. Therefore, according to Tannus, if you are using a tube, like I was, reduce your pressure 10 psi.
Actually, I am very OCD about all that. The actual fact is Tannus does actually recommend reducing tire pressure. Contrary to what someone commented incorrectly, there was nothing "different" happening. I have ridden, raced and worked on cars, motorcycles and bikes since I was a child. The bike was almost new. Probably less than 100 miles. Since the Tannus blow out, I have kept both tires at 35 psi and no problems for a thousand miles. 35 psi makes them to hard to have any give. Moreover, on the Tannus webiste it states: For inner tube users, test about 10 PSI (0.68 BAR) less. I wish I had read this before the hassle. But live and learn. It seems obvious, but I don't think of everything, every time. Therefore, according to Tannus, if you are using a tube, like I was, reduce your pressure 10 psi.
Slaphappygamer
Well-Known Member
- Region
- USA
- City
- Aptos
I forget where I saw it. There is a chart that shows what size tube you should get for what size tire you have. The Tannus armor pack I got came with smaller tubes. Therefore, I had to reduce tire pressure. 35 PSI without and 25PSI with the armor.
I’ve also read about the armor going “flat”. As in, compressed. I’m guessing that this is from people using the same tubes at the same tire pressure with the inserts.
I’ve also read about the armor going “flat”. As in, compressed. I’m guessing that this is from people using the same tubes at the same tire pressure with the inserts.
I've used Tannus Armor in both Schwalbe G- one 700x40c at max 70psi and Continental Doublefighter 700x37c at 80psi (max for that tire is 87psi). No problems with either tire blowing off the rim. I've also used larger tubes than recommended without an issue. They are some sort of foam so they do flatten out at the thick tread portion if left inflated at higher pressure. Reminds me to reduce the pressure as I rode with them yesterday.
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