This image from the City of Portland police shows the common places for bicycle serial numbers. Note that they are usually stamped and aren't very visible.
With the exception of bicycle serial numbers, there are few opportunities to otherwise pin-point exact vintage. Download lagu maha dewi lakukan dengan cinta. That said, once the general clues are learned, it does become easier to quickly recognize an old bicycle from a newer one, and with a fair degree of accuracy. May 24, 2010 First and most importantly, ANY serial number on ANY Haro (just about any manufacturer for that matter) can only tell you the date the frame was manufactured and does not always reflect the actual model year the bike was sold under.
Note that one area not shown on this image is the head-tube. That's where my latest bike had it. Otherwise, my bikes all have it in location #4 (bottom of the bottom bracket) or behind the seat post. Note this posting from Bike Forum which shows the Haro serial number stamped on the bottom bracket. There is also a registry of Haro bmx serial numbers, which might also help in identifying your bicycle: This latter registry is particularly useful because it has user-submitted photographs of serial numbers. While the majority are on the bottom bracket, some are stamped very faintly into the rear dropouts.