
Originally Posted by
SadieKate
Um, are you telling me this or who? I know the BB height on a cross bike is higher. I was wondering what the BB height has to do with the top tube length, not the seat tube length, on a cyclocross bike. And I was right - nothing. At least no more than any good bike builder would plan out when designing any bike - road, mtb, or whatever. You still need to pick a bike frame "size" by actual measurements, not by the decal stuck on the bike.
If you read my previous post, you'd see I have a road bike and a cross bike from the same builder in the same size with the same top tube length. But Surly doesn't design this way. Therefore, PscyclePath's comment about a smaller size only applies to Surly and bikes from builders who design similarly - not to all cross bikes.