If it's installed correctly and maintained then why wouldn't it last? 10spd ftw.
I tend to lose count of where I am on the cassette past 8 speed ... but I have never had a better gearing changing than my current 105 kit.
@cookiesdonniedarko started
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I tend to lose count of where I am on the cassette past 8 speed ... but I have never had a better gearing changing than my current 105 kit.