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  1. #1
    Senior Member
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    mystery plastic piece screwed into BB shell

    I recently bought a frame and I was wondering if anyone knew what this plastic piece is all about...



    thanks!
    I have a lot of bike issues

  2. #2
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    its the cable guide for your front and rear derailleurs

  3. #3
    B.C. to D.C.
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    that is where you route the cables for the front and rear derailleurs from the downtube shifter braze-ons.

  4. #4
    rebmeM roineS JanMM's Avatar
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    If the screw that holds in in place is too long, it can mess with the BB installation.

  5. #5
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    I guess I should have been able to figure that out

    Anyhow my follow up question is, since I plan on building this frame up into a single speed is it ok to remove the plastic guide? Would I be able to find something to plug the hole up?
    I have a lot of bike issues

  6. #6
    Senior Member Steev's Avatar
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    Quote Originally Posted by noahjz View Post
    I guess I should have been able to figure that out

    Anyhow my follow up question is, since I plan on building this frame up into a single speed is it ok to remove the plastic guide? Would I be able to find something to plug the hole up?
    It's not necessary to plug the hole. In fact, some people drill a hole there to allow any water that gets into the frame to drain out.

  7. #7
    cab horn
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    Quote Originally Posted by noahjz View Post
    I plan on building this frame up into a single speed is it ok to remove the plastic guide?
    Yes.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  8. #8
    Senior Member mtnbk3000's Avatar
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    Quote Originally Posted by noahjz View Post
    I recently bought a frame and I was wondering if anyone knew what this plastic piece is all about...



    thanks!
    is that the nashbar reynolds steel frame
    hi

  9. #9
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    Quote Originally Posted by Steev View Post
    It's not necessary to plug the hole. In fact, some people drill a hole there to allow any water that gets into the frame to drain out.
    Then you are left with the age old question, is it better to try to seal it or to have a place where water can get out and in.

  10. #10
    cab horn
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    Quote Originally Posted by masiman View Post
    Then you are left with the age old question, is it better to try to seal it or to have a place where water can get out and in.
    Well if the water can get in, it can certainly get out now without the hole plugged.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  11. #11
    Light Makes Right GV27's Avatar
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    And gravity's gonna insure that it does just that. I vote for leaving the hole.

  12. #12
    Your mom
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    Getting back to the Nashbar question, it sure looks like the signature frame, but the site says it has top tube cable routing. I'm confused. And obviously have too much time.

  13. #13
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    it's a soma fabrications "smoothy"
    their newer ones don't seem to come in this orange color, i don't know what year it's from

    i am a bit unsure of the steel, the decal is mysteriously painted over. anyone want to take a guess what this says? the guy i got it from said reynolds 853, but it sure is hard to read...
    what are the relative values of the reynolds steel grades? what do those numbers refer to anyways?

    thanks for the help






    Quote Originally Posted by mtnbk3000 View Post
    is that the nashbar reynolds steel frame
    I have a lot of bike issues

  14. #14
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    Its 853.

    and leave the hole. Water mysteriously enters the frame from every nook and cranny (seatpost, headset) and its good to have a drain.

    I've seen many destroyed bottom brackets because there was no drain hole in the BB shell (more often on mountain bikes since they usually dont use under shell cable routing)

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