Bmx Serial Number Check

A serial number on the underside of a bottom bracket.

Bmx serial number check. In the early 1990 s the haro bmx serial number system changed the build month often became a letter from a to l. A serial number located on a rear dropout. This is on the front of the bike. If the frame was made overseas in taiwan it gets more complicated.

1161 the serial number of the frame. This can be as short as one digit ie 911 for sept 1981 frame number 1. 91 is for 1991 and h is for august. D darrell kendell the man who actually built the frame in the factory.

This bike would be known as a 1990 model. A b c d e f g h i. Another serial number beneath the bottom bracket aligned parallel to the frame. The last four digits are the serialization digits 0000 to 9999 depending on what number the frame was of the years production.

The next part of the serial number is eight numeric digits. Some bmx bikes and a few schwinn bicycles place the serial on the rear dropout. Some schwinn bicycles have the unique identifying number their serial number on the head tube. The first four numbers should be a two digit month followed by a two digit year.

July 1989 built bike. Mid school mongoose bmx bikes built through most of the 90 s have a serial number that begins with 4 letters. A serial number from that time period might show cb8 above the five digit serial number which is sequential and indicates the number of frames produced in a particular series. Check for the letter x instead of the c with the serial number or look for the letter t in front of above or below the cb8 sequence.

1990 to 1999 haro bmx serial numbers. The serial number below can be read in the same way.