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martini henrie
Joined: 01 Jun 2010
Posts: 146
Location: Nottingham
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 Posted: Fri Apr 14, 2017 7:24 pm Post subject: Cranksets to go 2x on Giant CX bike |
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Hi chaps,
I'm looking for advice on getting a 2x crankset to fit on a FSA MegaExo Integrated BB fitted to a 2011 Giant TCX3 CX bike.
I'm in the process of upgrading the drivetrain to a mix of 105/Ultegra 10 speed, and have found that the chainrings I have aquired are not compatible with the cranks already on the bike (a major oversight). Or is there a BB I can swap to that won't cost the earth (budget is very tight) that will allow me to use reasonably priced cranks  
Suggestions of what to look for on the likes of ebay etc will be gratefully received. I've also posted a want ad in the for sale section just in case anyone has something hiding in a box somewhere
Thanks in advance  |
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Gunner
Joined: 15 Apr 2007
Posts: 29330
Location: Under Whitestone-Cliffe on the Lake.
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| Posted: Fri Apr 14, 2017 7:59 pm Post subject: |
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I may be wrong but wouldn't you need a BB with a shorter spindle length as you are going from a triple chainset to a double...... 
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Your poison letter, your telegram, just goes to show you don't give a damn!!! |
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martini henrie
Joined: 01 Jun 2010
Posts: 146
Location: Nottingham
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| Posted: Fri Apr 14, 2017 8:06 pm Post subject: |
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| Gunner wrote: | | I may be wrong but wouldn't you need a BB with a shorter spindle length as you are going from a triple chainset to a double...... |
I don't know, I'm new to messing around with road style bikes having left my CX stock for 6 years. I will admit to being slightly foxed by having to learn the different parts sets and to what they are compatible, I found the MTB bits much easier to navigate (that and I'm getting old ). |
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Gunner
Joined: 15 Apr 2007
Posts: 29330
Location: Under Whitestone-Cliffe on the Lake.
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| Posted: Fri Apr 14, 2017 8:12 pm Post subject: |
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Presuming that your CX is fitted with a triple chainset at the moment I'm sure you'd need a replacement bottom bracket with a shorter spindle length to bring the rings of your new double chainset closer to the frame for efficient shifting, plus you'd need a new front mech as well.
A new BB should be about £25 to £30 I would have thought.
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Your poison letter, your telegram, just goes to show you don't give a damn!!! |
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martini henrie
Joined: 01 Jun 2010
Posts: 146
Location: Nottingham
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| Posted: Sat Apr 15, 2017 8:30 am Post subject: |
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| Cheers, I'll have a look into it |
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Robmet
Joined: 04 Jan 2010
Posts: 1890
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Robmet
Joined: 04 Jan 2010
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