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Shimano component compatibility

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Shimano component compatibility

Old 09-26-15, 10:54 AM
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Gerryattrick
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Tiagra drivetrain component compatibility

How literally should I take the Shimano compatibility tables? They seem OK about compatibility, but are not detailed enough about incompatibility.

I have a bike set up with 4500 kit running 2 x 9 gears which I want to convert to 3 x 9. I have a 4503 triple chainset, a 4603 LH shifter and a 2303 triple FD which I would like to use.

Will I have any compatibility problems? I don't find the answers I need in the compatibility tables.

With my older mountain bikes I just mix and match with no problems, but this is my first fairly modern road bike and I'm not sure if I'm over thinking it.

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Old 09-26-15, 01:12 PM
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Jeff Wills
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I've mixed 'n' matched Shimano parts across several decades plus combined non-Shimano with Shimano with (usually) no ill effects. Shimano's compatibility tables are usually very conservative and sales-oriented. The reality is that many of their parts are cross-compatible across their range aside from a few well-documented inconsistencies.

Short version: go for it. You'll be fine.
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Old 09-26-15, 08:28 PM
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Double -> triple = longer chain, thus greater chainwrap capability of RD

Plan to use a RD with a longer cage (GS) if your current double has a short cage RD (SS)
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