[MENTION=103244]colotandem[/MENTION] Thanks for the bike suggestions, but we just bought a Double Edge Dawes as we find one secondhand for a good price as it fit better with our budget. I know it's not top of the line, but hopefully it'll be good enough for what we want.

What parts of the bike break the easiest though? Which ones should we start off having spares of? I definitely don't want to walk 50-100 miles because we didn't carry a spare part that we easily could've.
[MENTION=86766]djedgar[/MENTION] Thanks for the advice, but we've just bought a secondhand one (see above). However, it's always good to get second recommendations on equipment as we're currently going through a list with a shop in town.
[MENTION=212159]WVDave[/MENTION] Do you think the flex stem was worth it? Are there dangers we should be aware of when cycling the Rockies (both in America and Canada)?