Hello, I am an old Irishman not too well informed about bike mechanics, I always had someone do it for me. my American wife had an old [15 years] Schwinn tricycle in her shed and it only needed new tires and tubes. I bought these and fitted them and while the front went on beautifully the two rear tires [ same size ] will not seat properly, it seems as if they are too big but they are the same size as the ones I removed. Can anyone help.
Thanks for reading.