So I tried an Outex conversion. I have still to try the back wheel but the front failed and I cannot see how the kit as supplied would ever work. The nipples on the front wheel well are very, very close to the wall and the bend at the wall is sharp. So there is almost no flat area around the nipple for the tape to seal on. The problem is compounded by the second tape layer which is supplied wider than the first and is stiffer so it refuses to conform to the radius and peels back. The result was complete failure of the seal.