EDIT: OregonXC, that's a cool looking bike. Are most of the miles on-road with knobby tires like that?
Yes, about 95% of the miles that are on the bike computer are off-road with knobbies. I think the bike actually has about 40k+ miles on it but since 1992 it was almost exclusively off-road. It is now used to haul my kid around in a trailer.