Old 03-18-19, 11:05 AM
mstateglfr's Avatar
Join Date: Aug 2014
Location: Des Moines, IA
Posts: 13,128

Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo

Mentioned: 104 Post(s)
Tagged: 0 Thread(s)
Quoted: 6070 Post(s)
Liked 3,226 Times in 1,864 Posts
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.
mstateglfr is offline