20x4.0 Heavy Duty Fat E-Bike Tubes AV48mm Schrader Valve 20'' Inner Tubes 20x4.0/4.5 (102/114-406) Compatible with 20 x 4 20x4 1/4 20x4.25 20x4.50 E-Bike Bicycle Fat Tire Tubes 2-PCS

I have the Super73 R and have been a bit concerned as to Super73's supplier of tires as they have been shown to have deformities when inflating. I have gone through a few in one year. Their current supply has been shown affect the stability of the wheel at 30psi. These were great. Smooth ride, sturdy valve and dependable structure of the rubber.

So I have a RadRunner1 and it comes with 20x3.3 so I was like hmm 🤔 20x4. Well I tried it and it seems to work and fit with no problem 🙂 and I put some slime inside of the inner tube just in case. Other than that they seem to be built okay, they didn't look like cheap inner tubes.

My friend has an ebike. These are great for the price, very easy to install and gives a smoothe ride.

The Grade of Rubber used is a higher quality than the stock innertubes I had. It's thicker and more elastic which helps for a smoother ride. I figured I'd try the longer Valve but most people should be good with the regular size. Be Safe!

They sent the right ones this time after a return of a busted single tube with tube sealant covering it. But the correct ones they did send are a perfect fit for an early 2000's Occ Chopper Stingray bike rear tire. I have it on my motorized Occ bike and it's held up fine for at least 40 miles now. Installing some tire sealant on the good tubes once they're installed in the tire is a good idea.

I bought these tubes to carry as spares for my e-trike. I have not had the need to use them yet, so I can't attest to their quality in use. I can only say that the cost seemed reasonable compared to what I have seen elsewhere, and they don't feel flimsy.

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Was able to install in 4" wide wheel with no too much trouble. Seems like a good tube. No flats as of yet and put in Green Slime to prevent it from having a flat. Using an e-bike with 20" wheels is very difficult in having a flat tire when you are out on the road or trail. It takes a lot of air to fill the tube and using a hand pump is not very easy and is time consuming trying to fix a flat on a ride. These tubes seem heavy-duty but time will tell.

I received my items fast and in perfect condition.

super

Everything was like it supposed to be

J ai changé mes chambres à air car d origine sur mon velo de mauvaise qualité.J ai vu la différence par l épaisseur (poid) et l élasticité.

Good replacement tubes for my Cmacewheel Y20 fat tire ebike