

They can be opened in Acrobat Reader 3.0 or higher. The owners manuals are set up as PDF files. Extremely unlikely to be an XTC, since those have XTC instead of Giant on the downtube. My best guess is circa 2006 Rainier, Yukon or Rincon. Also, black branding on such a dark colourway doesn't seem like a catalogue option.

I don't think this is the original paintjob, as I can't find a model with both block text and a downtube gusset. Many models also switched from downtube gussets to hydroformed downtubes in 2007. Giant's graphics switched from outlined text to block text for the 2007 model year. Disc-only points towards late 2000s mid-range.

I've looked through a few models for various years at The chainstays on yours don't get narrower towards the rear, suggesting lower-end, but it's not a Boulder, because I can't find a Boulder with a downtube gusset.
