Old 03-18-19, 11:05 AM
  #2  
mstateglfr 
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It varied depending on the year.

some Sirrus bikes had rack mounts(your blue example) while others only had fender mounts.
some years in the late 80s and early 90s the geometry was the same between the Sirrus and allez and some years the Sirrus was more relaxed.
the allez had multiple models- carbon lugged, light cromoly, etc.
From the 3 arly 90s Sirrus road bikes I have refurbished, they were all heavy feeling cromoly.


so...it totally depends on the year what the differences were.
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