Originally Posted by
jcivic00
Honestly, isn't gravel-grinding essentially mountain biking over longer distances?
Not really, though it depends on how you define "mountain biking." Most "mountain bikers" do not consider anything wider than singletrack to be "mountain biking"; yes you can ride a mountain bike on gravel, cow paths, etc. And, no reason you CANT ride a mountain bike on gravel roads, although 2.3 tires and 6 inches of suspension is overkill.
An early 90s, 26inch rigid, hardtail "mountain bike" makes a great gravel grinder, although if going long distances, a 700cc wheel will be more efficient.