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going from double to triple(3 posts)

going from double to triplescoot1212
May 29, 2002 12:22 PM
I have a 2001 Jamis Quest that is currently setup with a double 105 crank and I want to go to a triple 105 crank. I bought a 105 triple 5504, Ultegra BB6500 68x118 and a 105 HG-50 12-25 cassette. I realize that I may need to order some more parts. Will the current 105 9 speed rear derailer work? How about the current 105 front derailer? I'm sure that the left 105 shifter should work may just need some adjusting. Is there any place on these components that I can double check to see what model I have? I haven't taken anything off the bike yet so if there's a model # on the inside I appologize.
So far you're doing fine.Spoke Wrench
May 29, 2002 1:00 PM
Assuming you want to do it right and not just force it to kind'a work, you need new front and rear derailleurs also.

The triple front derailleur has a deeper inside cage to help lift the chain and is longer so the chain won't rub in back when you are in the granny gear.

The triple rear derailleur has a longer cage to wrap up more chain slack.
May 29, 2002 1:13 PM
Perfect...just what I was looking for.
I appreciate it.