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Old 02-19-14, 09:41 PM   #1
scale
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a quick dumb question

Im going to look at a bike circa 1984 - 1985 soon. It has friction shifters on down tube bosses. Will those bosses accept indexed shifters should i want to change to this in the future?
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Old 02-19-14, 09:47 PM   #2
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I'm certainly not an expert, but I would say Yes. Indexing appeared in 87 as I recall.
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Old 02-19-14, 11:08 PM   #3
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Yes; and they can also be used for cable stops if you want to go with brifters.
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Old 02-20-14, 12:00 AM   #4
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Not if the bike was originally equipped with Shimano shifters. From, I think 1982 till 1985 Shimano used proprietary shifter bosses. There are no index shifters compatible with those bosses and cable stops have to be modified.

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Old 02-20-14, 06:37 AM   #5
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+1 on Brian's post. If you went indexing, you'd have to alter the backing plates of the shifters to fit over the bosses.
Been there, done that, on a 1986 Cilo with SLX, had to take a file to the backing plates, then found some made for that kind of boss and indexing.
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