Q-Tubes

Road Bike Tube

They Work

Familiarity:

I've put it through the wringer

I must never have purchased a lower price point tube in my 11 years of cycling. Compared to other tubes I have used in the past these are noticeably heavier. However, I could not tell any difference once mounted. Several hundred miles and no punctures, hold air. Do what a tube should. I would buy them again which is good because i bought a lot of them.

Worst tubes ever

I bought them as a replacement for my usual Michelin and Continental tubes because they were out of stock and need some in a hurry. I got flat after flat! Worst tubes ever! DO NOT BUY THEM!!!

crap

Familiarity:

I've used it once or twice and have initial impressions

I'm with Ben.

Presta 700 28-32 are sized for 27" rims

Familiarity:

I've used it several times

I purchased these for some 700 30 tires. The quality of the rubber is fine. They have maybe 100 miles on them since purchasing. The Box size label is 27" by 1 1/4" with 700 28-32 being the secondary label. If you are not familiar, a 27" rim has a larger diameter than a 700c rim. The tubes were difficult to fit on a 700c rim as their diameter, prior to inflation was greater than the rims diameter and I had to fold the tubes over to get them to fit. Beyond the greater challenges of installing them, I am concerned they will be more prone to flats.

Do not purchase for gravel.

Familiarity:

I've used it once or twice and have initial impressions

I bought these for my gravel bike. I had both tubes puncture within one hour. They could not handle moderate gravel. I have 25 years of racing and riding experience. These are the worst tubes I have ever used.