Lets look at some serial number examples below to obtain a much better understand how the procedure worked.Ī January C February G Drive The following number is the final number of the 12 months the framework was produced. It had been around febmarch 77 that the extra solitary gusset has been fell from the framework.

This feature transported over for the initial few decades till the ashtabula forks had been replaced with the even more rounder style Tange produced forks.īoth structures looked the exact same but we require some method of determined the difference owing to the structures being dime plated or powder coated paint,it had been impossible to tell the difference in the materials for guarantee reasons.įrom here frames had been rubber-stamped with the notice Chemical for Cromo, a letter for the month, and a quantity for the calendar year of production. It is certainly our guess that it had been performed this method to permit clearance for the squarer make on Ashtabula forks. Take note the flared shape of the 75 framework vs the later design (which carried on through all the later on decades of this frame style) and the prolonged seat pipe. Mongoose Bike Lookup Serial Numbers As We.

Mongoose bike serial number fego 8431