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with super compact up front i could get away with a less wider range cassette too.
Really is the better solution, however the small disadvantage is that the modern road front derailleur may not cope well when you go smaller than says, 46/30 and that is even pretty optimistic as my front derailleur performance is a little lacklustre (abet still work) compare to the 50/34 it was originally optimised for.
edscoble-
i think my FD is a triple specific and i just prevented third shift using the limit screws.... so far it seems to shift ok, but i've yet to use it an "anger"....
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Di2 fooooooooool!
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Won't the front derailleur will only care for the chainring difference Ed?(as long as the derailleur height is correct)
Although Shimano did release the Cx70 to use with 46 big ring, so maybe there are somerhing with the cage shape?
anthonyj
Chak
daveaa
no i'd go 10sp road and change the cassette and brifter too ..... with super compact up front i could get away with a less wider range cassette too