8 speed Sora to 9 or 10 speed?
10-26-05, 09:08 PM
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8 speed Sora to 9 or 10 speed?
What componets you have to change out from an 8 speed sora on a Trek 1000 to a 9 speed 105 or a 10 speed 105?
10-26-05, 09:17 PM
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To 9 speed... chain, cassette, shifters and you might have some issues with your cranks and rear D, but probably not. For 10, the same stuff and probably rear D and cranks. Start with the bare minimum (chain, cassette, shifters, even just the right one) and see how it works. If things skip, don't shift, or make a lot of noise then try cranks and rear D.
10-26-05, 09:34 PM
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Hopefully, the hub is shimmed for the 8 speed, so putting on a 9 speed cassette will be easy. The Sora rear derailleur is 8 speed, so that will also have to be changed.
