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7-Speed Query(6 posts)

7-Speed QueryP-Funk
Jun 11, 2003 10:17 PM
I recently purchased a Colnago Superissimo (circa 1984),
which has a Campy Super Record 7-speed cassette. I'd like to change to a larger geared cassette for climbing (something with a 25 or 28 tooth cog). Currently, my largest cog is a 19. Will my derailleur have problems reaching a larger cog - did they make short cage and long cage derailleurs in the eighties? Or, should I just get a triple crank for the climbing, instead? I really want to try and keep everything as original as I can but that gearing is killing me.
re: 7-Speed QueryLC
Jun 11, 2003 10:25 PM
Never seen one that could not handle at least a 25.
re: 7-Speed QueryM_Currie
Jun 12, 2003 4:34 AM
According to Frank Berto's 1988 "Guide to Upgrading Your Bike," a Super Record Derailleur of that era was advertised at 28 and could actually handle 30.
Used to have one; I used either a 26 or 28 w/no problemscory
Jun 12, 2003 8:00 AM
Can't remember for sure, but I bought a Motobecane years ago with SR and a straight-block cogset. I could barely ride it down the driveway. I swapped for one with either a 26 or 28 large cog, can't rememember which, and it worked fine.
Used to have one; I used either a 26 or 28 w/no problemsP-Funk
Jun 12, 2003 9:06 AM
Thanks for all of the responses. Now the task of actually finding a 7-speed cassette in that configuration.
Used to have one; I used either a 26 or 28 w/no problemshdnoise
Jun 14, 2003 8:20 AM
fyi, I have an early Colnago Master, super record, early 80's 6 spd. 13-26 freewheel, 52/41 chainrings. I believe the 26 is the limit. Are you cassette or freewheel? I am having the same problem (lots of hills here)even with this set up and am also exploring options. Check the classics board for ideas too. This is a fairly common excercise and many seem to go modern, reluctantly, in the end.