RainFlowwer 2 Pack Fat Tyre Bike Inner Tubes, 20 x 4.0 AV32mm Schrader Valve for Mountain Bike Electric-Bike

Its good

Disliked the fact it doesn’t fit the bloody tyre and yes did check size before ordering

The thick rubber construction feels robust, I've taken my bike on rough trails and rocky paths, and these tubes have held up exceptionally well, providing a sense of confidence. The AV32mm length is convenient for easy inflation and deflation, and it fits standard bike pumps without any issues. The 26 x 4.0 size is perfect for fat tire bikes, the inclusion of two tubes in a single pack, providing great value. Having a spare tube on hand is always a good idea.

Well made, no suspicious or worrying looking seam welds.The valve stem is about standard length which is fine although considering the number of fat bike wheels my son & I have seen that require a fraction longer on the stem it would have been nice to see it perhaps 6 to 10 mm longer.A pretty good price for two tubes as well.

These are very similar to those fitted originally to my Jorvik mountain trike. I replaced one of those with a slow puncture and now happily have a spare in case of any future problem. Great quality.

Two tubes with valve caps and nowt else, but it's all you need really.Seem fine, work in my 26" wheels with fat 4" wide tyres. Easy to replace my rear innertube from a previous puncture. Seems to have survived a few rides so far, so can't complain.

I like this product because it cheapest and more available for ebike