New gearing question

Discussion in 'Shop Talk' started by Ricekrispyota, Jun 29, 2018.

  1. Ricekrispyota

    Ricekrispyota Member

    Name:
    Dana Weinberg
    I went from a 42t to a 46t big ring on the rear. I adjusted the b-screw so the jockey wheel was not touching the cassette ring, but was close. Now I’m having a hard time shifting into the big rings as the jockey wheel is binding up on the side of the big ring as it moves up the cassette. There are chunks taken out of the teeth of the jockey wheel.

    Shimano SLX everything. Any thoughts.
     
    Danmtchl likes this.
  2. mtnbikej

    mtnbikej J-Zilla

    Location:
    Orange
    Name:
    J
    Current Bike:
    SC Chameleon SS
    Need to move the jockey wheel farther away. More B-Tension.
     
    rossage and Danmtchl like this.
  3. Ricekrispyota

    Ricekrispyota Member

    Name:
    Dana Weinberg
    I tried that and broke my Allen key off in the b screw. I’ll get a new one and give it a try.
     
    Danmtchl likes this.
  4. Runs with Scissors

    Runs with Scissors iMTB Hooligan

    Location:
    West Anaheim
    Name:
    Mark Whitaker
    Current Bike:
    2015 Giant XTC Advanced 1 29er
    Is the SLX rated for a 46? It may not be able to handle it.
     
    Danmtchl likes this.
  5. mtnbikej

    mtnbikej J-Zilla

    Location:
    Orange
    Name:
    J
    Current Bike:
    SC Chameleon SS
     
    rossage and Danmtchl like this.
  6. mtnbikej

    mtnbikej J-Zilla

    Location:
    Orange
    Name:
    J
    Current Bike:
    SC Chameleon SS
    I fInd that the B-tension is easier to turn if you take it down the cassette. Less tension on the derailleur at that point.
     
    rossage and Danmtchl like this.
  7. Ricekrispyota

    Ricekrispyota Member

    Name:
    Dana Weinberg
    Good point. I’ll give that a try.
     
    Danmtchl likes this.
  8. Ricekrispyota

    Ricekrispyota Member

    Name:
    Dana Weinberg
    It works fine once it’s on the 46t ring, just binds a bit getting there.
     
    Danmtchl likes this.
  9. muni

    muni Member

    Location:
    Downtown Los Angeles
    Name:
    Mike
    Current Bike:
    17 Yeti SB5
    Hmm did you get a longer chain? Going from 42 to 46 is like two links I assume. Something is binding if you break the b screw. Not much difference between slx/xt derailers, but my xt derailer is shifting fine on a 47 tooth. 46 is what it’s rated at.
     
    Danmtchl likes this.
  10. Ricekrispyota

    Ricekrispyota Member

    Name:
    Dana Weinberg
    Yes. I put on the longer chain. I didn’t break the b-screw, I broke the tip off of the Allen key I was using to adjust the b screw. I used a small dremal tool to cut a notch into the head of the B-screw so I can use it till I get the new one.
     
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