Got a good deal on a used trek 7200 from lbs in buffalo. Very happy with it. Just curious about what trek means by the name Multittrack? Also confused by treks number system. Is the 7200 similar to the 720? Differences? If the 520 is a touring bike is the 720 a complete different bike. Is there an easy site that defines what's what with specs?

The model names and specs changed from year to year. Probably 7200 is a successor to 720, which in its turn was superseded by 7.2FX -- I may be wrong here. Some of the Trek specs/catalogs for the past years can be found here: Vintage Trek Bikes- Information on Steel Road Bicycles made by the Trek Bicycle Corporation, bike

7xxx was Aluminum, 7xx series was steel. Higher numbers meant higher end.

In the 90's, the trendy bikes were Mountain bikes, and those were ridden on singletrack. Trek's high end MTB models were called "Singletracks", lower end MTBs were "Mountain Tracks". "Multitrack" is a play off that and implies that one can ride on road also. That's my guess.

Correct and I will add that Multitrack is the hybrid line with 700c wheels.

Which was, in turn, superseded by the FX 2.

Yes, Trek has generally been pretty consistent with its model designators, and I rather prefer them over names. You may forget what a Verve vs. a Soho is, but the differences between the 7xx and 8xx and 9xx were pretty clear. Even their road bikes had numerical schemes: 1xx, 4xx, 5xx, etc.

I've had my Multitrack 7300 for 15 years and it's been a great bike for me.

Get a few more posts and then put up some pics. I'd like to see it.

The 7000 group I a mixed use upright hybrid, road and trail. The fx is more aggressive positioning and less mixed use the higher end you get. They classify it as fitness.