Originally Posted by DrIsotope

The fact that there are such a thing as road bike and gravel bike is just more evidence of the irrepressible desire of people to put things in neat boxes. I have two cyclocross bikes, which have never and will never be employed for CX racing. I'm not gonna be forced to use them for some purpose determined by how they were marketed and sold.

But to remain pertinent to the thread, the 25lb 1x11 "CX bike," relative to an 18lb 2x11 "road bike," is 8% slower, or takes 8% more effort to maintain the same speed. All other variables "smoothed" to make an easy comparison. Both bikes have smooth tires. Gearing and weight make very little difference in typical, non-competitive use.