OFFBONDAGE Ultralight 39g TPU Bike Inner Tube — Features And Specifications
At only 39g per tube, this OFFBONDAGE TPU inner tube weighs roughly 60 percent less than a comparable standard butyl tube, a difference you feel immediately during climbing and acceleration. The thermoplastic polyurethane construction provides puncture resistant TPU material integrity, resisting pinch flats and minor road debris far better than traditional rubber compounds. Three French valve lengths — 45mm, 65mm, and 85mm — ensure compatibility with shallow, mid-depth, and deep-section road rims straight from the official store. The tube fits 700C wheel sizes across a tyre width range of 18mm, 25mm, 28mm, and 32mm, covering the most popular road and MTB compatible tyre profiles in a single versatile product. Air retention is exceptional at this weight class, meaning fewer top-up stops and more consistent tyre pressure across long training rides or race days.











A***r –
Ordered a few of these now, happy with install, first ride was a definite upgrade from my butyl continental tubes. Fitted a pair to my road bike and a pair to my tt bike removed valves and added valve extenders ok, time will tell how long they hold up now. Also liked the little rubber sticker to hold plastic valve tighter in rim if need.
[Color:45MM1pc]
E***a –
It seems much more durable than the orange and blue ones.
[Color:85MM1pc]
AliExpress Shopper –
Product conforms to the description, already installed on a tire for 3 weeks with no punctures or micro-leaks, the product seems quite durable for a TPU (not too light TPU, so more resistant to punctures). Time will tell, I have ordered another one for the other tire because I am satisfied so far.
[Color:45MM1pc]
AliExpress Shopper –
Product as described, received on time, TPU already ordered once before and satisfied so far, no punctures despite some pressure loss (need to monitor pressure loss more closely compared to a classic butyl inner tube).
[Color:45MM1pc]