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22-11.-2004, 08:30 AM
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#1 |
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Registered User
Join Date: Nov 2004
Location: Hamilton, ON
Posts: 5
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Upgrade from 7 to 9
I've recently purchased new rims with a deore xt rear hub. And I'm using a spacer to keep my 7 speed cassette. I am considering upgrading to 9 speed some time in the new year. The question is do I need to replace my front derailleur and cranks. Or would they work with the narrower 9 speed chain.
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22-11.-2004, 08:51 AM
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#2 |
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Registered User
Join Date: Apr 2003
Location: Terrigal, Oz
Posts: 675
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Re: Upgrade from 7 to 9
no, they won't work. 9 speed chains and rings are much narrower, you'll need tp upgrade the whole drivetrail to make sure you get compatible parts and proper shifting.
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22-11.-2004, 09:28 AM
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#3 | |
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Registered User
Join Date: Nov 2004
Location: Hamilton, ON
Posts: 5
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Re: Upgrade from 7 to 9
Quote:
I figured as much, oh well. It would be nice to upgrade but unless i find a great deal on parts on Ebay I will not bother, the seven speed works at least |
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22-11.-2004, 07:34 PM
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#4 | |
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Registered User
Join Date: Sep 2003
Location: Sweden
Posts: 849
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Re: Upgrade from 7 to 9
Quote:
The odds are very good that you'd be able to keep your old cranks at least. 9-spd chain IS narrower, but it shouldn't be enough to worry the crank. Shifting MIGHT be a problem because your FD is probably a bit wider than actually needed, you might get sloppy shifting or chain rub. Check out : http://www.sheldonbrown.com/k7.html for details. |
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23-11.-2004, 11:12 AM
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#5 |
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Registered User
Join Date: Nov 2004
Location: Hamilton, ON
Posts: 5
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Re: Upgrade from 7 to 9
That site was rather useful, thanks.
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