Can you convert an Ultegra 6600 standard crank to compact?
05-09-11, 09:54 AM
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Can you convert an Ultegra 6600 standard crank to compact?
I have two cranksets, a 52/39 Shimano 6600 and a cyclocross FSA MegaExo 48/38. I want to convert one of them to compact 50/34 instead of buying another crankset. Which would be the easiest to do it with and what chainrings would I need?
05-09-11, 10:21 AM
#2
Longing for a Tail Wind
The 6600 crank has a BCD of 130mm, which, as I understand means that you can't get to a 34 tooth chain ring that requires a 110 BCD. What is the BCD on the FSA crank?
05-09-11, 10:43 AM
#3
Banned
Yup, 38t is as small as the 130 bolt circle allows,
but, there is nothing to keep you from fitting a smaller big chainring.
so perhaps buy a 48 38 combination, of 2 after-market chainrings?
If you want 34 t , you have to buy a 110 BCD crankset.
but, there is nothing to keep you from fitting a smaller big chainring.
so perhaps buy a 48 38 combination, of 2 after-market chainrings?
If you want 34 t , you have to buy a 110 BCD crankset.
05-09-11, 01:17 PM
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Your easiest and only option is to purchase a set of 110bcd 50/34 fsa rings. Make sure you get the new ones marked 'N10' on them. Not the old ****ty gossamer ones.
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