Only recently taking up cycling I have been riding a cyclocross bike on the road using road tyres. I am now looking at a proper road bike and noticing tthat the reach on the road bike is further(ie top tube + stem), the chap selling it says the riding position on a cx bike is generally more upright, so the reach on the road bike will be further. The difference being an inch or two. I didn't want to doubt him but can anyone confirm whether this is the case. Thanks.