I have bought the pre twist and lock pan as a replacement pan, for my Kenwood bread machine, thinking that my paddle kneading from my old pan would fit, and it doesn't . I was wondering why ? As my machine was bought in Cambodia, East asia, and I have left it there, as I live there. But bought the kneading paddle and its little shaft with me, needing a replacement for the shaft only, as the washer at the base had eroded. So cannot really check the fitting of the pan until I return to Cambodia in September. The pan looks exactly the same as my model. BM 250 however my paddle for kneading doesn't fit. So wondered why? I can buy another kneading paddle to fit the new pan, no problem, but it has made me wonder maybe the pan is a different size too. However, it looks right to me. thanks