Who wants to replace a cheap tires or even need, which is to confirm that this does not work so easily. I use this lift now for some time; it can hardly imagine without this yet. Unfortunately MIFA delivers bicycles with tires so miserable that already after less than 2 years on the edge of tears were visible, and then tore the re-inflation of the tire and the tube had burst loudly (sharp points on rusty wire). Even with the proven lifters it was not quite leicht.Normalerweise are accessed under the tires; fixed on a spoke and touches with the other lift the tire ab.Nicht at so miserable tires; my efforts you can now see the lifters on but nobody is gebrochen.Der new Conti tires was so fix it, that I had to mention anything here. (That is, if necessary, quickly back down from the rim.) Who here so writes that He has problems with the lifters who see themselves only once his tires more closely; I recommend only good as branded goods.