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  1. #1
    Senior Member mzeffex's Avatar
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    105 triple to double

    Is it possibly to just remove the small chainring and have it work? Of course I'd need to adjust the shifter. The front derailleur says 105 triple on it. And would this throw off the chainline or anything? I wouldn't think so. Finally, would the current bolts work or would I need shorter ones? Thanks.
    Quote Originally Posted by rjones28 View Post
    Are they talking about spectators feeding the cyclists? You know, like don't feed the bears?

  2. #2
    cab horn
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    Why exactly would you want to do this again? Complete waste of time... You won't need new bolts. It's self explanatory how it comes off. Have you looked at your crank yet?
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  3. #3
    AEO
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    +1


    and you can easily botch it up if you don't know what you're doing.


    tell me this, why do you think the chainline will change by removing the inner ring from a triple crank while the rest of the parts stay the same?
    Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
    http://sanfrancisco.ibtimes.com/arti...ger-photos.htm

  4. #4
    Senior Member mzeffex's Avatar
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    I know how it comes off. I mean, will the bolts stick out/in? And if so, is that a problem?
    Quote Originally Posted by rjones28 View Post
    Are they talking about spectators feeding the cyclists? You know, like don't feed the bears?

  5. #5
    cab horn
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    Quote Originally Posted by mzeffex View Post
    I know how it comes off. I mean, will the bolts stick out/in? And if so, is that a problem?
    ...............
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  6. #6
    AEO
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    if you cut your pinky finger off, does the width of your hand change?
    do you gain any benefit from having one less finger?
    Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
    http://sanfrancisco.ibtimes.com/arti...ger-photos.htm

  7. #7
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    Quote Originally Posted by mzeffex View Post
    Is it possibly to just remove the small chainring and have it work? Of course I'd need to adjust the shifter. The front derailleur says 105 triple on it. And would this throw off the chainline or anything? I wouldn't think so. Finally, would the current bolts work or would I need shorter ones? Thanks.
    Yes it is possible to do. You have to adjust the hi-low screws on the derailleurs both front and back and generally re-tune the shifting again. The chainline doesn't change, so that isn't a problem. You don't need new chain ring bolts since the small chain ring just uses single chain ring bolts directly attached to the crank arm:
    http://techdocs.shimano.com/media/te...9830646645.pdf

    But you do need to take of the crank arm to remove the small chain ring. There are special tools to counter-hold the chain ring bolts when removing them, but a lot of people just get by by using a flat head screwdriver.
    All in all it does take some effort. There are some small advantages in avoiding annoying wrong downshifts and make it easier to adjust the front derailleur when changing cables. It is also possible to reattach the small chain ring if your needs ever changes again. So if you like to tinker and spend some time learning something, then why not.

    --
    Regards

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