AR-PRO Bicycle Tubes Race 28 700x20-25C 700x32-47C Bike Tube, 700C Inner Tube with Presta Valve Super Value Bundle (Pack of 6 Tubes & 2 tire Lever)

It was easy to install. Cheaper than going to the bike shop. I'd bike again

Nothing more needs to be said. They work and they’re cheap. I wouldn’t waste money on “better tubes” unless you’re running aluminum rims and want to use latex. But if you’re using carbon wheels these are perfectly fine

So far so good on tubes. Good quality

I like to have 2 spares, one for me, and one for others if needed. the durability is there and much better cost than the $8-$10 per tube at the bike shop.

Works well

5 stars.TLDR: tube withstood a lot of abnormal friction and heat and still didn’t pop or leak. Nice tubes.I Haven’t had these for long but was riding yesterday in the heat with the bead of my tire not seated properly. The tire was bulging out exposing the tube partially, which was rubbing against the brake. This was my fault for not double checking before heading out. constraint, I rode the bike like that for maybe a couple miles until the thing had swollen to the point I couldn’t go any further. I reset the bead today and was able to use the same tube and tire without any problem today. I’m impressed as when that’s happened before I’ve usually had to discard both the tire and tube. I actually had a blowout last time. Anyway, 5 stars to these tubes and continental GP 5k tires.

The tire levers are worthless, and are not "Conti" levers as stated. One tip snapped the instant I tried to use it. [I pulled out a set of real Conti levers (still cheapo) they did just fine. I mean, they're plastic tire levers, not rocket science.]The levers are a trivial issue, but the fact that the seller feels the need to use the Conti name as a "boost" and then you don't even get Conti levers - well it tells you something about the trust-worthiness of the seller. (In case you can't tell; IMO - not very trust-worthy.)Given the description I (perhaps skimming the listing too fast) thought I was getting Conti tubes too. (IMO, the only reason for using the Conti name is to lead the buyer on.)Tubes themselves seem fine-ish. But I've only used one and I have no idea about longevity etc. It did hold air and seems mostly ok. But it's no-name stuff that may be decent or junk. Hard to know until you need it, 6mo's from now when the seller already has your money and there's little you can do to get a remedy.Would I do it again? Meh. Probably not....I'd rather have Conti or Kenda tubes - and the fact that the seller feels the need to mislead - well, I'd rather reward an honest seller.So, probably not.Follow-up ~three months laterThese are crap. I've flatted more in the last few months than the last few years combined. 2/10 Would never do again!

They fit perfectly into my 700 x 25 tyres. These cost about half as much as the tubes I've been buying, yet they've outlived them all. I've had to change my tubes less than 60 miles after purchasing these, and since I've replaced both my tubes with these I've not had a flat for over 200 miles. They're durable, they work as they should, easy to install as any other tube, and hold air well enough. I'll definitely be buying these again, whenever I get through all of them, which I don't anticipate happening soon.