Someone has commented on my new (to me) frame on Pinkbike:
First: something like "you know that's a 456 right?" when I asked what he meant he said: "The top tube on the 456 meets the seat tube in the same place as the seatstays, on the inbred, the TT is slightly lower. For some reason, the early 456's were badged as inbreds (not quite sure why, i think they were known as an "inbred 455" or something)."
I've looked at a few pics and can see what he means - so is he right??