TannusArmour Tire Insert, No Flat Bike Tire Liner, Puncture Proof Bicycle Tube Protector, Stops Flats from Thorns and Goatheads Compatible with E-Bikes, Mountain Bikes, and More 20" x 4.0-4.8"

I used a smaller tube fit good rides super smooth and half the pressure

I do Food delivery and would normally get 35miles per charge on my e bike. But now has been reduced to 25 miles per charge. You will get a squishy tire in comparison to a firm aired filled tire. So there is a trade off. Less mileage equals less Deliveries but less flat tires. On other hand you got a firm filled tire with 30% more miles but more constant flats. Still don't have a warranty opinion yet. Now if I get a flat with low mileage then I will change the rating from 3 stars down to 1 star.

I saw these amazing Tanus Armor inserts on youtube and thought it would prevent flats on my ebike but after a month I got a flat from a machine screw and of course, There was no stopping a 1 5/8" machine screw from puncturing the tube but what the problem is with the inserts is that when I opened up the tire to swap the tube, the inserts were completely FLAT instead of thick foamy bottom like when first installed. I used to recommended PSI to be 10 PSI less than original. I super disappointed in the product because of the high cost. I could have got the other tire liner for fraction of the cost. Of course this all happens the day after 30 return window has expired. With so many positive reviews I expected more than thin foam or I could have used a pool noodle to do the same thing. BTW the run flat claim is BS. There was no way you could ride on a flat.

The paper thin tires that they put on eBikes aren't worth a damn in sticker country...putting these outrageously expensive liners inside these paper tires is brilliant... phenomenally better than cursing continually at flat tires!

Good quality for the price.