Non-standard chainring combinations
05-23-11 | 12:56 PM
#1
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i never learn
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From: Quebec
Bikes: Litespeed/Bianchi/Jamis/Giant
Non-standard chainring combinations
I've got a campagnolo centaur ultra-torque 10sp crank with the standard 39/53 double chainring combination. I'd like to switch to a different combination, but Campagnolo doesn't offer this option.
I did find Campi-compatible chainrings with various tooth counts on this site. Do these work well (shifting, durability)? Can I run any combination as long as I don't exceed the rear derailleur capacity?
https://www.ribblecycles.co.uk/sp/roa...ng/STROCHRI500
https://www.ribblecycles.co.uk/sp/roa...pd/TAAACHRI350
I did find Campi-compatible chainrings with various tooth counts on this site. Do these work well (shifting, durability)? Can I run any combination as long as I don't exceed the rear derailleur capacity?
https://www.ribblecycles.co.uk/sp/roa...ng/STROCHRI500
https://www.ribblecycles.co.uk/sp/roa...pd/TAAACHRI350
05-23-11 | 01:16 PM
#2
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From: NW,Oregon Coast
Bikes: 8
so what combination Do you want? 39 is as small as you can fit on 135 bolt circle,
39 is it , so there is a bigger small ring and smaller big ring.
7075 aluminum is good , Stronglight and TA make top notch spare chainrings.
so you will be reducing the wrap capacity required of your Rear derailleur
Cyclocrossers often switch to a smaller big ring, on their cranksets.
the Paris Roubaix racers swap in a bigger small ring.
so it's all fine.
39 is it , so there is a bigger small ring and smaller big ring.
7075 aluminum is good , Stronglight and TA make top notch spare chainrings.
so you will be reducing the wrap capacity required of your Rear derailleur
Cyclocrossers often switch to a smaller big ring, on their cranksets.
the Paris Roubaix racers swap in a bigger small ring.
so it's all fine.
05-23-11 | 01:23 PM
#3
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From: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
if you don't mind mixing stuff, then you can always switch out your crankset for a shimano or sram offering.
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Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
05-23-11 | 04:19 PM
#4
Thread Starter
i never learn
Joined: Aug 2009
Posts: 23
Likes: 0
From: Quebec
Bikes: Litespeed/Bianchi/Jamis/Giant
so what combination Do you want? 39 is as small as you can fit on 135 bolt circle,
39 is it , so there is a bigger small ring and smaller big ring.
7075 aluminum is good , Stronglight and TA make top notch spare chainrings.
so you will be reducing the wrap capacity required of your Rear derailleur
Cyclocrossers often switch to a smaller big ring, on their cranksets.
the Paris Roubaix racers swap in a bigger small ring.
so it's all fine.
39 is it , so there is a bigger small ring and smaller big ring.
7075 aluminum is good , Stronglight and TA make top notch spare chainrings.
so you will be reducing the wrap capacity required of your Rear derailleur
Cyclocrossers often switch to a smaller big ring, on their cranksets.
the Paris Roubaix racers swap in a bigger small ring.
so it's all fine.
After running Sheldon's gear calculator I'm probably going to run 39/48 so your're absolutely right that derailleur capacity is not an issue. I was just so happy to find such a large range of rings that I was looking at all the combinations
Now I'll finally be able to put my 12-25 cassette to good use!
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