components aren't super different, everything else definitely is tho, increased mud clearance, slacker geo i believe, stronger for taking a beating, cables routed on top of the top tube for being slung over the shoulder, xc pedals instead of road pedals, so no biketrials they are not road bikes and quite far from.
Knobbly tyres; deeper rims; hubs for disc brakes; disc, cantilever, or v brakes; wider ratio cassette; narrower ratio chainset (or 1x10 with guide); always compact bars; frame and fork mounts for disc, cantilever, or v brakes. As finnrambo said xc pedals, different cable routing, mud clearance and slacker geo so that the bike is more stable over rough stuff... but yeah...
apart from ALL OF THOSE miniscule differences, it's pretty much a road bike...
I've been told that the perfect number of bikes boils down to a formula: (a+1)+(b-1)=x where (a) is the number of bikes you currently own (don't we all want one more?) and (b) is the number of bikes at which point your significant other will leave you (better stay below that threshold). Which makes (x) the ideal number.
Your math makes no sense. The "significant other" will leave you no matter what, unless you currently own a maximum of -1 bicycles. Unless that's the point... which would be stupid.
I said other,I don't think my xtra small cotic bfe with 140mm argyles and singlespeed setup fits in any.of them brackets.I'm going for somewhere between dh-ht and out n out ragger bike!
I truly believe that Trials is the purest form of technical biking. Although I'm pretty sure that raceross went out of business like ten years ago, but it's my favorite bike.
I have a mountain bike for fun and road bike so I can enjoy all that "responsible" stuff people have to do - cardio, commuting, etc... having a road bike has also improved my mountain biking experience surprisingly.
I own one as well, for commuting and riding variation. And as bmar said, riding a road bike has improved the mountain biking ability, at least it gives me more experience of going fast