700x35-45 Road Bike Inner Tubes with FV48/AV48mm Presta/Schrader Valve Stem, Bicycle Butyl Inner Tube Replacement for Road Bikes, 4 Pcs

I restore bicycles, and go through a lot of tires and tubes. These are nice quality and price. Good value.

This is a pack of 4 inner bike tubes. My bike tires are 700c X 40. These are 700c X 35-45 so they should fit.I'll take one of them with me whenever I ride in case I get a flat. At this time I don't know how to change a flat tire but instructions are included with the pack. I can also look up a how to video with a youtube search.I didn't get a chance to road test it but quality seems decent and the price is reasonable.

Good bike tubes for the price. Just purchased a second set.

Watching the inside of the tire to make sure no nails coming through. One tube had a hole where the stem is glued to the tube. The second one had a hole on the tire side and checked the tire again no nails.

I've had my bike for over 25 years, and while i don't ride it consistently, I go through bursts where I ride almost every day for a few months, then I may not touch it for a year. Recently, I was coming off a long layoff and saw that my rear tire was flat. On closer examination, I noticed a tear right at the base of the presta valve. so I could not patch this tire. After 25 years, it was time to pick up a new inner tube! I found the HAKULA MATATA 700x35-45 Road Bike Inner Tubes with Presta Valves, and snapped it up.The fit is perfect for my 700x35 hybrid tires; it dropped in without issue. The tube itself is a bit thicker than the original it replaces. I take this to mean it's more robust and will handle more stress without problems. Since my original tubes lasted 25 years, I'm expecting these to last 50 years or so... The presta stems are longer than my originals, so I expect to have less trouble with them pushing into the tire when I inflate it. The included tire removal tools are nice, but unnecessary, at least in my case; I have plenty of them from previous patch kits. And the 4 pack means that I get to screw up at least 3 times and still end up with a working bike.I really like these HAKULA MATATA inner tubes, and I expect to have a long (LONG!) relationship with them. Highly recommended.

I love a multi-pack of tubes. These are the perfect size for my gravel bike, and they come with a bonus set of tire levers. One tube weighs 166g. I’m not sure why “FV” stands for presta valve, but it does. “AV” is the schrader set. Be sure to choose the right ones for your rims. I’ve used road tubes from this brand and have been happy with them, so I got a set for gravel. These were a little more expensive than the road set. Maybe that’s because gravel riding is popular right now. Still, I’m happy with these. I inflated them all, and they held air overnight. I will update if I have issues as time goes on.

Well-raed Inner tubes right now come in:1. Bargain basement (Bell and the like) around $3 ea.2. Good brands like Panaracer, Kenda and more starting around $4 or $5 and running up to $10ea.3. More good brands in multi-packs that average out to $4-10 per tube, including Continental, Schwalbe and more.4. High end tubes like TPU tubes and Schwalbe's best (including flat resistant or self-sealing) tubes in the $10ea and northward area.I would put these tubes into the 3rd group, and, at about $6 each for a pack of 4, this is closer to the low end on price, so if quality is good, this might be a good buy (it is).So, I went to mounting this onto an existing spare wheel with 700x42c wire bead tires (makes mounting more difficult). I've mounted many tubes to this particular setup, including butyl rubber and TPU tubes of varying thickness from no-names to Continental and Schwalbe. To date, I have found TPU tubes easy enough to mount (except for dealing with pinches), requiring no extreme measures, but I've found rubber tubes on this setup to be very difficult to mount, even when compressing the tire up along the wheel both sides. I've had to use tire irons very carefully a couple times. So, it was with some surprise that I found this tube to be quite narrow, to fit right into the wheel and tire (the tire had one side mounted, one side "open") and then getting the bead on the remaining side to be quite easy, requiring only a bit of compression and no tire irons at all (my favorite outcome).I inflated to 50psi (max for this tire) and left it overnight to find no pressure lost. Furthermore, the tube weighed only 164g vs. 93g for a TPU tube and 230g for a Continental. So, this has the benefits of rubber in terms of easy mounting and minor puncture resistance with low cost, making it honestly an almost as light ride as the TPU tubes but for a lot less money.Ah, Goldilocks, I think these are juuuu-u-uuuust right.

It's hard to find many objective criteria by which to evaluate tubes. The valve works, they hold air, they appear to be the right size, so they should be good to go. I'm planning on swapping out a couple of tires this spring and will use two of these to go with the new tires, and will report back if I encounter any problems, but that seems unlikely.I didn't bother weighing them, but these seem to weigh about the same as the spare in the tail bag. In fact, the one I just tested will probably replace that one.Fair value, you can probably find a better price but it's easy to pay far more, too.