Chainrings or Crankset (compact vs standard)
05-21-13, 05:02 PM
#1
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Chainrings or Crankset (compact vs standard)
Hi,
I have standard crankset with Shimano Ultegra di2.
Thinking to switch crankset to compact crankset as standard seems too big.
few questions:
1. Is it possible to replace chainrings instead of whole crackset?
2. If i need whole new crankset, any recommendations carbon vs aluminum vs steel ?
My rear cassette is 11-25, my next option will be to change to 11-28 hopefully that will help as well!
Thanks!
I have standard crankset with Shimano Ultegra di2.
Thinking to switch crankset to compact crankset as standard seems too big.
few questions:
1. Is it possible to replace chainrings instead of whole crackset?
2. If i need whole new crankset, any recommendations carbon vs aluminum vs steel ?
My rear cassette is 11-25, my next option will be to change to 11-28 hopefully that will help as well!
Thanks!
05-21-13, 05:15 PM
#2
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1) Nope, standard and compact use a different BCD (bolt circle diameter). Standard uses 130mm, Compact uses 110mm.
Last edited by FPSDavid; 05-21-13 at 05:57 PM.
05-21-13, 06:56 PM
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I've researched the crap out of this. Summary: you're pooched. Head to eBay
05-21-13, 08:11 PM
#5
SuperGimp
What are you trying to achieve? There are loads of folks who prefer the standard crank... if you don't live in a very hilly area you may too.
05-21-13, 08:14 PM
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commu*ist spy
Hey, I'm planning on buying a new bike that has an ultegra 50/34 crank. Would you be interested in swapping?
I believe this is the 6700-G version, so it would work well with your Di2
I believe this is the 6700-G version, so it would work well with your Di2
05-21-13, 08:41 PM
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If OP is not interested, you could try the "For Trade" thread (unless you need to be a paid member ?)
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05-22-13, 06:19 AM
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I wouldn't buy Di2, and then degrade the front shifting by swapping out for a non shimano crank.
One good option would be the new DA crankset, which can accomodate standard size, and compact chainrings on the same crank, giving you the optionof going back and forth.
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