ROCKBROS Bike Inner Tube 700x18/32C Super Light 35g TPU Road Bicycle Tubes Presta Valve Compatible with 700 x 18/23/25/28/30/32C Tire

These are for race day and when you really want to go faster. They feel great on a thin light weight tire but can't use them everyday. You could use as a back up for when you have a flat because they are easy to carry, but I would opt for something a little heavier.

I ordered 3 of these tubes to try out. Read and followed the instructions carefully. Installed the first one, filled it up with air to 80 psi, and left pump on it with 80 psi of pressure for a couple minutes to make sure it's holding air. Release pump...air held...few moments later all the air was released. I removed the tube and it had a small hole in it. Complete failure.Installed the next 2. Filled to 80 psi. Left over night, checked it in the morning, was fine. Later on in the evening went for a group ride. Checked it one last time before heading out. Made sure filled to 80 psi. Back wheel gave out just a couple miles out. Had to stop and refill it twice to make it back to my car.I cannot recommend these. In fact, I would even say they are dangerous. Imagine taking a turn at speed and these tubes give out on you.Also these are made in China. That might have something to do with it.Will be returning for a full refund.

Bought two. One had no issues and inflated right up. The second one failed around where the valve stem meets the tube at 75psi. DisappointingUpdate: Company reached out and fixed the issue by sending a new tube. No issues with the replacement. Quick response and service! Would recommend, especially with the good customer service if issues arrive

Extremely lightweight and easy to install and carry as a spare tube. 4 tubes and not one box contained a patch, are they a separate item?

Will not fit through the opening in Shimano dura ace wheels. Nonstandard valve diameter, beware they may be useless unless you have a big enough valve hole in your wheel.

Nice light tube and at a reasonable price (as compared to VittoriaTPU's). Wish they would have optional valve length, and a valve which it could be secured down (threaded).

Great replacement for my Garmin.

Brand new tire. Fairly new wheel only a few hundred miles on it. Took of perfectly fine GP5000tt with latex tube and installed new tire and this tube. Super careful as always. At 60psi i heard the tube split and vent. Split was on the top side and there were no imperfections in the new tire to explain it. Right on a seam where the tube was folded up in the box.Don't waste the money the quality isn't up to rockbros standards unfortunately

Received the items very quickly and the quality appears to be top level, installed 2 tubes, weight was as advertised and no issues.Can’t wait to hit the road with them..I have ordered more

No leaking after a month so far. Good stuff.

Thankfully tried these before needing them out on the road. The rubber Valve diameter is too wide/large to fit through a Shimano GRX rim valve hole. Useless and unusable for this rim.

Velo de route longue distance

I purchased two tubes, and both of them have defective valves.