I have these two bikes:
The DS8.3 is labelled as a mountain/dual sport hybrid. The FX 7.2 is labelled as a road/fitness hybrid. The FX is lighter, has thinner tires, no suspension fork, no disc brakes. On paper the FX is the faster road bike with the DS being sort of a quasi off road deal; but for some reason I am consistently 1+ MPH faster on the DS than I am on the FX when riding on concrete trails/roads.
Any idea why that is?