VeloTubesPremium Fat Bike Inner Tube 20 X 4.0 Threaded 33mm Schrader Valve - Bulk 2 or 4 Pack!

I have used one tube for a replacement so far and I am very pleased with the quality and the ability to use the provided nut to tighten the value to the wheel. It makes filling the tire easier and less air lost when putting on/off the tire pump. I will order more in the future because of the quality, the valve nut, and the ease of changing.

Seem to be quality tubes. Heavy duty

My impression of these tubes after adding a half quart of 'slime' is that the tubes are slightly thicker than OEM. I like the nut on the filler tube it makes adding air easier.. The tube installed easily on my Fat Tire trike. I discovered that the thin original tube had blown due a pinch or bind that blew from friction. I installed by slowley filling the new tube and tire with air and flexing the tire to assure no pinches. I then made a 12 mile run to town. I live in a rural area. About a mile of my 12 mile run is on gravel/dirt. As a result these tubes have earned a five star rating. Thanks

There is a joke in there somewhere. But lets not okay? Really. Thick. Tubes. Like totally tubular thick. Photos dont do it justice. Big box, big tubes. But, i keep em as backup tubes. Havent had to install them yet:-) yeah!

valves are about 3/4 inch off center. tubes wont last long. valeve will brake off after while.see picture.

This seller (Velo tubes) is the best! Refunded an 6-month old order that was my mistake (not his) without hesitation. Cannot go wrong - great tubes/great price/great seller!

Great