33g Inner Tube - Ridenow TPU

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openwheelracing
Posts: 379
Joined: Thu Jan 28, 2021 6:41 am

by openwheelracing

Is it hard to find a hole on these tubes? A while back I had two that flatted over night but never found holes. I am afraid they would just randomly fail for no reason. Back then some mentioned the plastic valve was to blame but the new design is 1/3 plastic so I am not sure if that is any better...

I wonder if I actually had a puncture but just couldn't see the hole. Also, I hated them at 90 psi too rough, hurts my hands, but they feel fine below 70psi.

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MikeD
Posts: 1042
Joined: Thu Dec 11, 2014 9:55 pm

by MikeD

wickedstealthy wrote:
Tue Apr 30, 2024 8:57 am
MikeD wrote:
Mon Apr 29, 2024 9:23 pm
Are you running hookless rims?
No never.
But anyway I reached out via PandaPodium and they contacted Ridenow.
The mentioned the same about pinching but I almost certain that this wasnt the case as I rode the tube for 1000km and are very very carefull installing things.
I you once crashed due to a mechanic not properly installing a crank you get very wary easily :D
I mostly reached out to see if the tubes are suited for 28mm tires fitting on wide rims. As you know tires become pretty wide so wanted to be sure that its safe to use these. Not to blame things.
I didnt expect a response but the tpu tubes are tested with tires up to 32mm in 24gr version (according to RideNow) so for now I would still say they are structurally designed to be used in this configuration.
So likely it was a faulty tube or so maybe still pinched as you cant really look into the tire if still something got mangled up even being very careful.
I dont care really if it blows up ... it is more me not crashing if it happens :D :D
Are you using tire levers to install the tire? If so, maybe the lever damaged the tube.

MikeD
Posts: 1042
Joined: Thu Dec 11, 2014 9:55 pm

by MikeD

openwheelracing wrote:
Tue Apr 30, 2024 4:20 pm
Is it hard to find a hole on these tubes? A while back I had two that flatted over night but never found holes. I am afraid they would just randomly fail for no reason. Back then some mentioned the plastic valve was to blame but the new design is 1/3 plastic so I am not sure if that is any better...

I wonder if I actually had a puncture but just couldn't see the hole. Also, I hated them at 90 psi too rough, hurts my hands, but they feel fine below 70psi.
Yeah, real hard to find holes since you can't put much pressure in them out of the tire. Some even have leaks in them out of the box. I bought a couple of Cyclami tubes to try or keep as a compact spare. They are so cheap, that they are probably not even worth the effort to patch. I like the metal valve stem, but the valve core isn't removeable.

EtoDemerzel
Posts: 335
Joined: Sun Dec 17, 2023 4:13 pm

by EtoDemerzel

openwheelracing wrote:
Tue Apr 30, 2024 4:20 pm
Is it hard to find a hole on these tubes? A while back I had two that flatted over night but never found holes. I am afraid they would just randomly fail for no reason. Back then some mentioned the plastic valve was to blame but the new design is 1/3 plastic so I am not sure if that is any better...

I wonder if I actually had a puncture but just couldn't see the hole. Also, I hated them at 90 psi too rough, hurts my hands, but they feel fine below 70psi.
Yes. I had a piece of wire puncture and I could only see the puncture underwater by bubbles.
Even after, it was invisible.

wickedstealthy
Posts: 454
Joined: Sat Jan 02, 2021 3:16 pm

by wickedstealthy

MikeD wrote:
Tue Apr 30, 2024 4:29 pm
wickedstealthy wrote:
Tue Apr 30, 2024 8:57 am
MikeD wrote:
Mon Apr 29, 2024 9:23 pm
Are you running hookless rims?
No never.
But anyway I reached out via PandaPodium and they contacted Ridenow.
The mentioned the same about pinching but I almost certain that this wasnt the case as I rode the tube for 1000km and are very very carefull installing things.
I you once crashed due to a mechanic not properly installing a crank you get very wary easily :D
I mostly reached out to see if the tubes are suited for 28mm tires fitting on wide rims. As you know tires become pretty wide so wanted to be sure that its safe to use these. Not to blame things.
I didnt expect a response but the tpu tubes are tested with tires up to 32mm in 24gr version (according to RideNow) so for now I would still say they are structurally designed to be used in this configuration.
So likely it was a faulty tube or so maybe still pinched as you cant really look into the tire if still something got mangled up even being very careful.
I dont care really if it blows up ... it is more me not crashing if it happens :D :D
Are you using tire levers to install the tire? If so, maybe the lever damaged the tube.
No all by hand. But maybe in this case removed the tire once I can't really remember to be honest. But to conclude I will even be more cautious then I already was 😅

TheBelgian
Posts: 180
Joined: Wed Apr 26, 2023 9:09 am

by TheBelgian

wheelbuilder wrote:
Thu May 04, 2023 7:14 am
as I love the feel of latex.
Alright :mrgreen: :mrgreen: :mrgreen: :popcorn:

Weber
Posts: 125
Joined: Sat May 15, 2021 11:21 am

by Weber

Hello.

I am using the TPU from RideNow and in the purchases I make they send me the self-adhesive patches from Cyclami. I notice that over time they turn yellow and lose adhesion even if they are not used.

Has anyone tried the glue that is sold separately?

User avatar
marsa
Posts: 25
Joined: Sat May 15, 2021 7:21 am

by marsa

Weber, read my post about glue here:
viewtopic.php?p=1852955#p1852955

RimClencher
Posts: 205
Joined: Tue Jan 14, 2014 1:00 am

by RimClencher

marsa wrote:
Sun Jun 16, 2024 7:26 am
Weber, read my post about glue here:
viewtopic.php?p=1852955#p1852955
The technical specs for TechnicQll Soft Plastic Glue say it is "temperature resistant" up to 80°C
The technical specs for Camplast glue say it is "stable" up to 60°C

Based on those specs, it doesn't seem like a good idea to use these glues to fix TPU tubes for rim brake rims.
Maybe for disc brake rims, but black rubber can get pretty hot under direct sunlight in summer.

User avatar
marsa
Posts: 25
Joined: Sat May 15, 2021 7:21 am

by marsa

Valid point. Still, it is interesting, that the Camplast is what is included in some "big brands" TPU repairt kits.

Tubolito and Pirelli for example.
Attachments
Pirelli SmarTube Repair Kit for TPU inner tubes.jpg
Tubolito Tubo-Patch-Kit.jpg

RimClencher
Posts: 205
Joined: Tue Jan 14, 2014 1:00 am

by RimClencher

Seems pretty irresponsible.

man1ac
Posts: 100
Joined: Mon Apr 11, 2022 4:58 pm

by man1ac

Been running Ridenows and couldn't be more satisfied. Need some more of them. Has anyone bought recently and has some purchase link to get the cheapest price?

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