Try this.....its a bit more up to date in terms of the different systems. Might help
Decoding Marin frame numbers.
What brought Retrobike to my attention in 2010, was a search for info on marin frame numbers and the 2008 post which has gone on ever since! https://www.retrobike.co.uk/threads/help-with-marin-frame-numbers-please.37430/ However, ive always been concerned about the number of people on the...
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