more help with dating (and sizing) my bike

[robdem]

thanks for last tip but my bike's code is:
M60IA1000
the 6 agrees with Muirwoods
the 0 must mean it's a 1990??
but I'm wondering where the size details fit in..

In case you know your retro Marins well, it's a bright yellow frame and forks, bars and stem, with random splatterings of different colours all over. forks have 'rockstar hi-ten' decals but not 'marin' down the legs like later models.

were these older bikes measured centre to centre on the seat tube, rather than centre to top?

 

[Huntso]

Glad that was of help and Marins measure C to C.

Always seems to be an awful lot of large size ones for some reason, far more than other brands or is it just me that thinks that way.

 

[hamster]

I agree - also Marins tended to get used a lot for all-day events like Polaris Challenge etc, which maybe favours a bigger frame.