Stop-A-Flat Puncture-proof, Thorn-resistant, No-flat Bicycle Tubes

Great if you are always running over nails / thorns etc. like me.Will make it harder to pedal - not bad but it is noticeable. on my electric bike it cut range by about 10%Hard to install properly, takes some tweaking as it need to be perfectly centered at high speeds otherwise you will notice a wobble.

Muy rápida la entrega a pesar que venia de Canadá a MexicoEl material muy buena calidad para su instalación no es muy complicadoEspero sea muuuuuy durable

It's doing the job.Put half the tire on the rim, insert this tube into the tire, then work the other half of the tire onto the rim. Pretty easy, actually.It's a bit of a drain on the ebike battery but I already knew that before I bought it.There is a bit of drag in momentum.

A bit of work getting it on, but it works well and rides smooth. Just ensure the size matches.

while providing relief from puncture this product does so at the cost of being a proper tire. comparing this product to the endurance of "Bell" brand never flat tire I can honestly say that the Bell product (on my other bike) is better in every regard. and has lasted thru the same abuse for 2+ years longer (see attached photos; tooks tire apart bell tube covered by 26x1.75, I had bee riding around with around 5 nails in the tire (i never even noticed they were in there till i took tire apart) <--again, this is Bell brand awesomeness im talkin bout )When I first purchased this product, It did not fit the tire size advertised. I had to use a 26x 1.95 over "Stop-A-Flat"'s 26 x 2.125. Given the nature of these tires, they put an unusual amount of wear on any rim during installation, both Bell and Stop-a-Flat. however, these tires are supposed to be permanent solutions for as long as the tread on one's tire lasts. Since buying this product and needing to put a smaller than advertised tire over it to gain any function of it, It has now become unusable(4-5months). the shape of this product is not correct. it allows for the pinching of the sidewall in a way that both damages the tire and does not provide rim-tire traction. Say, preventing rear brakes from functioning effectively by allowing the tire to spin over the rim.After I go to use my bike after it has been parked all night, there is a bump while riding every revolution, as if resting on its kickstand cause the foam tire to form a flat spot.Often while riding and needing to bank a turn or really anything, the tire still feels like riding on a half flat tire. upon inspecting my 26 x 1.95 tire's sidewall, it has become damaged to where if were to keep using this product, one day while riding, this stop-a-flat would tear through and separate from the rim while banking or something. definitely not a confidence booster on the road. besides look in this picture how easily it pushes to the side. often when riding of the slightlyest uneven terrain my Stop-a-flat is floppin around on my tire.do not like.Save yourself the trouble and install a Bell no flat from the beginningEdit: Edit: upon removing the tire to switch back to air while I wait for my Bell in the mail, I took some pictures of what happened to this tube. keep in mind the 2.125 tire i bought to use over this was way too loose so I put a much tighter 1.95 over it instead. after 6 months of sub-satisfactory use this: (picture) is what happened to it. see for yourself.the only possibility of using this product would have been MAYBE to try putting a 1.75 tire over the 2.125 tube. from the beginning, mine is destroyedTLDR: bell is tough as nails. Stop-a-flat works by being already always flat(to be fair i never tried to fit a 26x1.75 tire over the stop-a-flat. how i got it over the bell tire.... idfk)