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Old 03-27-07, 01:48 AM   #1
rcevans
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Can Sora shifters be used with older system?

Can I buy a set of Sora 7 speed shifters and use them on my 1990 Schwinn Prologue with a 7 speed 600 SIS system. It's still a 7 speed and set up for indexing. Does this work or do I need a different derailleur and freewheel spacing for the indexing to work?
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Old 03-27-07, 02:19 AM   #2
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It will work perfectly. Harris Cyclery sells a lot of them for that exact purpose.


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Old 03-27-07, 06:22 AM   #3
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yes it does. I used a 7 speed Sora for the 7 speed SIS
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Old 03-27-07, 04:12 PM   #4
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might need a new front mech though. I'm not sure that mechs expecting friction will work with indexing..
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Old 03-27-07, 05:23 PM   #5
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Quote:
Originally Posted by acorn_user
might need a new front mech though. I'm not sure that mechs expecting friction will work with indexing..
This is an issue with triples, but doubles are MUCH less fussy.

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Old 03-27-07, 07:05 PM   #6
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I'm glad I got confirmation, I was thinking of this exact thing for my bike... also 7 speed Shimano 600.

It is a good feeling to have your assumptions validated before buying.
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Old 03-27-07, 07:31 PM   #7
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You could just buy a right 7-speed Shimano brifter and use the downtube shifter for the front.
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