Haro’s Backtrail Pro bike was manufactured in November 2000 and had a bike frame number of 0673. As an example, we will have the bicycle’s serial number C43730. The letter C means the bike of Hawthorne’s Comet line. Most adult s that are small enough for an 11-year-old or 12-year-old will most likely come with… Continue reading Bicycle Serial Number Decoder Lets Become A Professional Biker