My Brooks B-17 has a crooked frame. When the nose is pointed off to the right, the back is centered & almost but not quite level. When I figured this out, it was too late to send it back to the fly-by-night internet seller. Since figuring out the nose has to point to the right, I've made peace with it. Can do long-milers (for me anyway, ~50 miles) in comfort w/o bike specific pants. So it's OK. Maybe it's a feature -can sit somewhat sidesaddle & avoid crushing tender parts.