if the bike hasn't been used much, the paint on the cranks will have not rubbed off. check the hubs, to make sure they are tight. check the pads on the brakes. (to see if there is wear) and the more scratches n chips in the paint of the frame the more it was used. also look at the pedals. mine were toast after a couple of months. so if its been ridden regularly then the pedals are gone already! haha.