Crash damage is also extremely common on learner bikes. The question is, how bad was it. A low-speed tip-over resulting in scraped-up fairings but no major structural damage can warrant fairing replacement, and isn't really an issue, but if the new fairings are covering up all sorts of bent parts underneath, that's potentially an issue. As a rule ... "upgraded fairings" or "new paint" (non-stock paint in general) means the bike has been crashed.
Maybe it's an issue, maybe not. One of my bikes - now 31 years old - I bought from the second owner as a race bike. It had been crashed, as a race bike. All the shiny original fairings came with it (but not installed on the bike) ... I still have them in storage. It had been crashed as a race bike, and to add to that, in 2007 (I think), a car turned left in front of me, and I hit it. Still have the bike, still on the road, all aftermarket fairings and paint job with the pretty originals in storage, I've put about 60,000 km on it total over 20 years. If you look in the right spots, you can see little hints of its past ... I don't care, I built it to ride it.
Give the bike a thorough going-over to look for damage. Look for fairing panels that don't fit properly, uneven gaps, non-original-equipment fasteners, mismatched fasteners, scraped bar-ends, scraped levers, scraped footpegs and foot controls, etc. Scrapes on the ends of brake levers aren't a big concern. Non-original or mismatched fasteners just means the previous owner was sloppy with rebuilding it (what else were they sloppy with??). Fairing panels that don't fit properly together and uneven gaps and the like, mean that something underneath is bent (or the fairings are aftermarket rubbish).
The number on the odometer doesn't mean much, although a big number means low resale value. Good when buying, bad when selling.
