Zilla asked:
>>
>>>Except for the obvious set up, any gotchas in going
>>>from Ultegra double to triple? I know my shifters,
>>>derailleurs, chain, cranks, and BB (what else?) support it.
I replied:
>>Nope. You'll need a new front derailer, crank and bottom bracket.
>>
>>Otherwise, your present parts do support it, if it's the 9-speed
>>version.
> I shouldn't have included "cranks" on my list, of course I'll need new
> cranks to support the 3 rings. Needing a new BB makes sense too
> to support the extra length. I do have a 9-spd front derailleur so are
> you saying that will work? Thanks...
A front derailer designed for a double will "work" but shifting from the
small to the middle ring will be very poor, and you will be liable to
have a lot of chain rub in some gears. I think you would find it quite
unsuitable.
The reason I mentioned "9-speed" was that the Ultegra pre 9-speed STI
shifters were not designed to work with a triple, and the left one won't
shift 3 rings without a no-longer-available accesory add-on lever.
Sheldon "My Dad Came From Zillah, Wash." Brown
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