rickon ive tried several times ive had them on and off god knows how much, they are both popping onto the rim and the line that runs along the side of the tyre near the rim seems right to me, it dosent move when i spin the tyre so that tells me its seated but ive tired several times now and with loads of faery liquid all over the tire and the rim! i just cant work it out, ive literally tried everything, even inflate a little and push it around and rolling it etc and still the same, very weird indeed