[QUOTE] Yeah, but low-tech and understressed isn't really fun. The most reliable engines are large diesels, but you wouldn't really want one in your motorcycle.[/QUOTE] Depends on the diesel and what I wanted the bike for I guess. For a really serious multi-month beat-the-snot out of it trip I might take a look at one of those milspec KLRs or better yet a diesel boxer. I put 250,000K on a four wheel diesel and would have put more if a mechanic hadn't managed to kill it. (left the ground strap off, cleverly routing the headlights back to battery through the glow plugs.) Ideally, you should be able to roll it end over end down a hill, drop it in a creek at the bottom, fish it out, patch it with tape then ride it until you replace the 0 worth of parts you broke off.