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Thinvik TPU Inner Tube Upgraded Durability for Road Bike MTB Gravel Bicycle Tire 700cc x 18-32, 33-50c, 29'', 27.5'' Bicycle Tube 45MM 65MM 85MM Length of Presta Valve- 2 PCS (One Pair)

4.8 (13) Write Review
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$21.99

$ 8 .99 $8.99

In Stock

1.Color:65mm 700cc X 18-32c


About this item

  • Compatibility. This TPU inner tube can fit Mountain Bikes with Bike Tire of 29''x 1.9-2.5. Please order without worry.
  • Better Valve Stem. Upgrade plastic valve stem to Metallic Threads, which significantly improves its durability and prolongs its service life, making them could be used for a longer time compared to those made of plastic.
  • Easier Installation Comes. Longer, Wider and Thicker. These upgraded designs allow our TPU inner tube to have a simpler installation than other normal standard TPU tubes and make your hands more comfortable during assembly and disassembly.
  • Ideal Substitute As Spare Tire. Thanks to about 70% Smaller Size than conventional butyl rubber inner tube, now it is easier to have this as your spare tire and take it out with you by simply putting in pocket,bag when you go out for riding.
  • Superb Resistance to Puncture. TPU material promises cyclists to own a sturdier inner tube, greatly helping you reduce the possibility of getting punctured and keep your cycling journey uninterrupted and happy.


Product Description

Thinvik's TPU Inner Tube
Metal Stem

Metallic Valve Stem

Adopt METAL as material in order to accomplish the desired pursuit of lightweight of cyclists. Replacing plastic valve stem by Metallic Threads, which significantly prolongs its service life, making them could be used for a longer time compared to those made of plastic.

65MM and 85MM length for your selection

Better Length Design

We especially redesign the length of valve stem based on the market investigation and found that a lot of valve stems have problem with hard installation. In that case, we have made 45/65/85mm, these new designs allow our TPU tubes to have an easier installation than other standard TPU tubes.

Puncture Resistance

Superb Resistance to Puncture

TPU material promises cyclists to own a sturdier inner tube, greatly helping you reduce the possibility of getting punctured and keep your cycling journey uninterrupted and happy.

Weight Comparison

Ideal Substitute As Spare Tire

Thanks to about 70% Smaller Size than conventional butyl rubber inner tube, now it is easier to have this as your spare tire and take it out with you by simply putting in pocket or bag when you go out for riding. Due to the Metallic Stem, it might be few grams heavier than Plastic, but more durable.

  • Our TPU inner tube can fit Road Bike of different tire sizes, including 18-32c. For Gravel Bike is 700cc 33-50c/29' 'x 1.5-1.75 and for the MTB cyclist there are 2 tire sizes compatible, 27.5''x1.75-2.3 and 29''x 1.9-2.5.

  • TPU Inner tubes should not be inflated too much before whole installation is done, or it will cause bump happened, which is irreversible damage. Please do not inflate over 5psi/0.35 bar in your first test.

  • That is for sure. The instruction is right inside the package, please follow the installing steps if you do not know how to assemble.

  • Of course. We will send you free replacement if we confirm that is a technical failure together. We do not suggest cyclists using any adhesive tapes or patches to try to repair a broken TPU inner tube, which is meaningless and a waste of time.


Bruce S.
Reviewed in the United States on March 28, 2025
I was gonna say try and you’ll like him changing that, to try them you’ll love them.
David K.
Reviewed in Canada on March 27, 2025
Nice TPU tubes. Threaded valve stems are hard to find and something I prefer. Run these in my road wheels as well as the bigger version in my gravel wheels. Nice and light too even with 85mm valve stem @ 37g
Pistol Pete
Reviewed in Canada on February 17, 2025
These are a bit heavier than other TPU tubes with plastic valves, but I think the metal valve (with securing nut) on these ones make them more durable.
Andrew lang
Reviewed in the United States on January 1, 2025
I installed the tubes in new wheels, rim strips and new tires. The installation was simple. The metal valve fit well and feels sturdy. At the base of the valve is a small plastic reinforcement disc that fits into the hole for the valve stem. I would caution the use of frame pumps that attach directly to the Presta valve without a flexible hose. this is a common cause of failure on Presta valves on any tubes. The light weight of the tubes is very noticeable. I noted it uses less effort to pedal my bicycle. I feel that for my riding style this lightweight tube is far easier than using a tubeless set up. The tubes hold air without issue. I believe this product to be a time saver because the regular (non tubeless) tires are easy to mount and fiddling with sloppy sealant on a bike tour is arduous. I will use this TPU set up going forward. TPU tubes.... 🤩
100%勝男
Reviewed in Japan on April 30, 2025
軽くて良いと思います。耐久性は分かりません。
Ben
Reviewed in the United States on April 3, 2025
Have purchased 4 of these…3 were fine, one would not old air. Have had better luck with other TPU brands. I like that these have a metal/threaded valve stem, it quality control may be an issue
John
Reviewed in the United States on April 29, 2025
It exploded when I put 10 psi in it. If it looks too good to be true it probably is. Real reviewer. You can tell it’s brand new because it hasn’t even unfolded from how it came out of box.
Shannon Freeborn
Reviewed in the United States on April 26, 2025
The value stems are 5MM short than advertised so the length is misrepresented.
スミス
Reviewed in Japan on April 26, 2025
つなぎ目部分の接着が甘くなってスローパンク使用期間はおおよそ3ヶ月で500kmくらいTPU用の補修テープを貼ってみましたがつなぎ目の段差の部分から抜けるようで一晩で空気は抜けてました値段を考えればまぁそういうこともあるよねという感覚30cでの運用でそれ以外のスペック的なところでは問題なかったです
MARIO A.
Reviewed in the United States on April 19, 2025
Portable
Carla
Reviewed in the United States on April 15, 2025
Super lightweight and has a metal stem instead of cheap plastic.
Bea
Reviewed in the United Kingdom on October 4, 2024
Do not waste your money. No wonder it is cheap. One tube blew up and the other won’t inflate properly. Worst ever inner tube bought. Not sure how can I communicate with seller for a full refund.
KRISTI
Reviewed in the United States on October 21, 2024
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