Changing compact crank chainring advice needed

colenargo
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Changing compact crank chainring advice needed

Postby colenargo » Sun Oct 26, 2014 4:38 pm

Hi all, I have been riding around on a campy 11 speed record compact crankset with an 12-29 cassette. I have had a year of lots of climbing in steep areas. I need something more balanced now and was looking at options. My end point is roughly a mid compact crankset with an 11-27 cassette. Im a good climber, and generally like to push a big gear and am a little interested in trying Rotor Q-rings.

Is it possible to put some Campagnolo mid compact chainrings on my Campy compact record 11 speed crank?

If I wanted something roughly equivalent to a mid compact using Rotor Q-rings, would I get their 52-36 q-rings for campy compact cranks? Im not sure how their chainring sizes translate being oval shaped.

cheers!

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open roader
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Re: Changing compact crank chainring advice needed

Postby open roader » Sun Oct 26, 2014 5:23 pm

Your current compact cranks will only accept 110 BCD sized rings so you need to be hunting for 110 BCD rings if you want to continue to use your current cranks.
3rd class cycling is always better than 1st class walking

colenargo
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Re: Changing compact crank chainring advice needed

Postby colenargo » Sun Oct 26, 2014 6:17 pm

ok cheers!

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open roader
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Location: Dueling Banjo Country, Otway fringes, Victoria

Re: Changing compact crank chainring advice needed

Postby open roader » Sun Oct 26, 2014 6:25 pm

I'm pretty sure the Campagnolo 52/36 set are 130 bcd.

If you are happy with your climbing prowess then the obvious and least expensive option is to keep your current crankset and switch the cassette to a 11-27 or a 11-25.
3rd class cycling is always better than 1st class walking

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Duck!
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Re: Changing compact crank chainring advice needed

Postby Duck! » Sun Oct 26, 2014 9:48 pm

open roader wrote:I'm pretty sure the Campagnolo 52/36 set are 130 bcd.
With a 36 it'll be a 110mm BCD, as the smallest that will fit on 130 is 38T. In any case, unless they've suddenly had a change to match everyone else, Campag's standard cranks are 135mm BCD, which would possibly even make a 38 hard to fit.
I had a thought, but it got run over as it crossed my mind.

colenargo
Posts: 90
Joined: Wed Nov 13, 2013 1:31 pm

Re: Changing compact crank chainring advice needed

Postby colenargo » Sun Oct 26, 2014 11:27 pm

thanks for the advice.. I think a 11-27 cassette might be the answer, though im tempted to try the rotor q-rings at some point

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