double fd on a triple crank
#1
Thread Starter
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Joined: Jun 2011
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From: modesto, ca
Bikes: 2011 specialized Allez Tripple
double fd on a triple crank
like the title says i got a 105 double fd off of ebay, its a new take off. threw it on my 2300 triple cranks.... ive got it going but it seems a a bit on the rough side (quite a bit of chain rub on both ends of the sprectrum.
ive removed about 5 links and have it pointed out to help with shifting, i plan on getting a new crankset eventually here, but hope this gets me a long for a while.
so any tips?
ive removed about 5 links and have it pointed out to help with shifting, i plan on getting a new crankset eventually here, but hope this gets me a long for a while.
so any tips?
#2
moth -----> flame


Joined: Dec 2007
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From: SF Bay Area
Bikes: 18 Tarmac SL6, 11 CAAD 10-4, 07 Specialized Roubaix Comp, 98 Peugeot Horizon
It won't work well with your little ring. Triple specific FD's are deeper/wider allowing the chain to ride "lower" relative to the big ring.
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#3
Thread Starter
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Joined: Jun 2011
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From: modesto, ca
Bikes: 2011 specialized Allez Tripple
my little do you mean middle ring. i forgot to add that i dont use my granny gear anyways thats why i threw on the double fd. i only intend to use the middle and large rings
#4
moth -----> flame


Joined: Dec 2007
Posts: 5,919
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From: SF Bay Area
Bikes: 18 Tarmac SL6, 11 CAAD 10-4, 07 Specialized Roubaix Comp, 98 Peugeot Horizon
That'll help. Chain lines are still a little different with the outer two rings of a triple vs a double due to the Q factor; i.e. your big/big combo would have a worse chain line with the triple as the chainring is further from the BB with the triple.
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#6
moth -----> flame


Joined: Dec 2007
Posts: 5,919
Likes: 4
From: SF Bay Area
Bikes: 18 Tarmac SL6, 11 CAAD 10-4, 07 Specialized Roubaix Comp, 98 Peugeot Horizon
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