Berkeley CSUA MOTD:Entry 43537
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2025/07/09 [General] UID:1000 Activity:popular
7/9     

2006/6/30-7/3 [Transportation/Bicycle] UID:43537 Activity:nil
6/29    My Shimano Ultegra double crankset has a few bits that are worn
        out. I'm thinking about changing it to a triple crankset.
        Approximately how much would it cost to change it yourself?
        Also do I need to change my left shift lever?
        \_ First you will need to find out if your derailers can handle a triple\
           crankset.  My Shimano Dura-Ace rear derailer didn't allow for
           the chain tension differences that a triple causes, so I had to just
           go with a larger cassette instead.  Your front and rear derailer
           may be less picky.  If you have to replace everything your looking
           at 800-1200.  I believe that the shift levers allow for 2 or 3
           indexes, so you may be in luck there.  -scottyg
        \_ Obviously you'd need to replace the right crank and chainrings.
           You probably also need to replace the front derailleur.  Depending
           on the clearance, you may need to replace the bottom bracket
           (a triple might not clear your frame). I haven't done such a swap
           since everything switched to the stupid integrated brake and
           shift levers, but I'd guess you don't need a new lever.  -tom
2025/07/09 [General] UID:1000 Activity:popular
7/9     

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2006/6/30-7/3 [Transportation/Bicycle] UID:43536 Activity:nil
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