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Enough Clearance Crankarm/FD Cage?

Last post 05-13-2017 5:54 PM by Kookie. 5 replies.
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  • 04-24-2017 10:06 AM

    • Kookie
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    • Joined on 02-04-2012
    • Toronto
    • Posts 400

    Enough Clearance Crankarm/FD Cage?

    Here is a picture of my crankarm/FD cage on my 2017 S5 with eTap. The chain is on the big chainring and small cog. A piece of paper "maybe" can get through...

    Most likely I'll bring it into the LBS this weekend cause the shifting isn't as it was the first day I rode it.

    Also does the S5 require one of those "wedge" behind the FD? 

     

    20170424_095715
    2013 Cervelo R5 SRAM Red
    2017 Cervelo S5 SRAM eTap
  • 04-24-2017 11:20 AM In reply to

    • Kookie
    • Top 50 Contributor
    • Joined on 02-04-2012
    • Toronto
    • Posts 400

    Re: Enough Clearance Crankarm/FD Cage?

    Crossing fingers, being the OCD type person that I am...adjusted the FD cage. I moved the tail end ever sooo slightly < ~.5mm inboard (FD guide line more inline with chainring) which gave me about .25mm clearance and shifting appears to be better.

    2013 Cervelo R5 SRAM Red
    2017 Cervelo S5 SRAM eTap
  • 04-24-2017 11:13 PM In reply to

    Re: Enough Clearance Crankarm/FD Cage?

    ...might be the angle of the pic, but it appears as if your outer cage is 5-6 mm too far outboard. With the outer cage parallel to your large chainring and your chain in the big ring, there should be a 0.5-1.0mm gap between the outer edge of your chain and the inner side of the outer cage plate.
  • 04-25-2017 7:49 AM In reply to

    • Kookie
    • Top 50 Contributor
    • Joined on 02-04-2012
    • Toronto
    • Posts 400

    Re: Enough Clearance Crankarm/FD Cage?

    Thanks I'll double check that...
    2013 Cervelo R5 SRAM Red
    2017 Cervelo S5 SRAM eTap
  • 05-13-2017 4:37 PM In reply to

    Re: Enough Clearance Crankarm/FD Cage?

    I have e-tap on my 2016 R5 and I am about to yank it off and go back to Shimano. I feel i have spent more time adjusting the FD and dealing with shifting issues then any human being should. I hope you have better luck!
  • 05-13-2017 5:54 PM In reply to

    • Kookie
    • Top 50 Contributor
    • Joined on 02-04-2012
    • Toronto
    • Posts 400

    Re: Enough Clearance Crankarm/FD Cage?

    After one ride, so far so good...I didn't have any chain drops or a thrown chain. Did my best to make the chain drop by constantly shifting big to small and visa versa. Whereas before I could easily get chain drop after a few fast shifts of the FD).

    Main "fix" for me was properly aligning my FD cage with the guide lines and then adjusting the high/low limit screws (got rid of the ticking sound since the crank arm was hitting the FD tail).

    We'll see after a few more rides... 

    2013 Cervelo R5 SRAM Red
    2017 Cervelo S5 SRAM eTap
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