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  1. #1
    considering myself warned MarkSLC's Avatar
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    FSA Carbon Pro Popping Noises

    I've been noticing some popping coming from the ISIS drive on my cranks. Mainly, while trackstanding and accelerating from a stop (any time I'm applying a good amount of force to the pedals). Does anyone else have the same issues with the FSA Carbon Pro Track cranks? I know they are on nice and tight, so I'm wondering if this is just one of the many issues I can expect with an ISIS drive crank?

  2. #2
    No plan. peabodypride's Avatar
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    Yes, they're very flawed cranks. Have yours started stripping yet? They will soon. There's a reason they are on clearance everywhere.

  3. #3
    considering myself warned MarkSLC's Avatar
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    Quote Originally Posted by peabodypride View Post
    Yes, they're very flawed cranks. Have yours started stripping yet? They will soon. There's a reason they are on clearance everywhere.
    Stripping at the splines? Maybe this is the beginning..

  4. #4
    car dodger norskagent's Avatar
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    my '06 fsa's are still going strong.
    1989 Schwinn Paramount OS
    1980 Mclean/Silk Hope Sport Touring
    1983 Bianchi pista
    1976 Fuji Feather track
    1979 raleigh track
    "I've consulted my sources and I'm pretty sure your derailleur does not exist"

  5. #5
    likes bikes Breakthru's Avatar
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    I had a popping sound on mine when i first put them on, but i noticed mine were flawed because of the chainring. It was every so slightly bent. If yours is spinning straight, then it *might* be the bb. Are you using a new bb as well?

    I replaced mine with a new carbon crankset from FSA, and I replaced the bb with a new one as well and it's been great ever since. No problems

  6. #6
    considering myself warned MarkSLC's Avatar
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    Quote Originally Posted by Breakthru View Post
    I had a popping sound on mine when i first put them on, but i noticed mine were flawed because of the chainring. It was every so slightly bent. If yours is spinning straight, then it *might* be the bb. Are you using a new bb as well?

    I replaced mine with a new carbon crankset from FSA, and I replaced the bb with a new one as well and it's been great ever since. No problems

    The chainring is straight. The crankset is on a '07 Rush Hour Pro, as is the bb. Came stock on the bike. I haven't pulled the cranks off since this started, so I'm not too sure. The popping feels like it's coming from the crank, not the chainring. I think I'll just have to take it down and tear into it, see what's up. I'm just wondering if this is common.

  7. #7
    No plan. peabodypride's Avatar
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    Quote Originally Posted by MarkSLC View Post
    Stripping at the splines? Maybe this is the beginning..
    No, the interface that FSA uses strips. The spider and right arm are not the same piece (obviously, one is alu and one carbon), and the mechanism they use to hold it together, a spline and locking, slips. It is not the same as the ISIS spline, which is fine.

  8. #8
    Member jayruss's Avatar
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    I just sent back a set, Just installed them an the pedal insert on the left side crank arm wasn't true, So my pedal was floating. Very annoying to say the least. The bike shop took them back an gave me a full refund. They look beautiful but I'll stick with my Sugino 75's My buddy's FSA's are making noise an he's so bummed after reading this. We'll try my BB to see if it helps, but like Mr. Peabody said it's probably internal.
    Last edited by jayruss; 02-28-09 at 12:54 PM.

  9. #9
    likes bikes Breakthru's Avatar
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    Quote Originally Posted by MarkSLC View Post
    The chainring is straight. The crankset is on a '07 Rush Hour Pro, as is the bb. Came stock on the bike. I haven't pulled the cranks off since this started, so I'm not too sure. The popping feels like it's coming from the crank, not the chainring. I think I'll just have to take it down and tear into it, see what's up. I'm just wondering if this is common.
    Make sure you tighten your pedals for one. Tighten your cranks with a torque wrench just to be safe.

  10. #10
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    Quote Originally Posted by norskagent View Post
    my '06 fsa's are still going strong.
    my 08s are the same way. blew out a cheap isis bb and replaced it with the 09 quad pro track, inspected everything and no issues.

  11. #11
    Member jayruss's Avatar
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    we just replaced my buddys fsa track bb with mine an the popping is gone. he's happy it's not the crankarms.... but now the question is, will fsa take his bb back

  12. #12
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    i had to rma a pro track bb thru fsa several months ago... it arrived with a bent/eccentric axle. check yours.

  13. #13
    No plan. peabodypride's Avatar
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    If you can't tell, no more FSA for me.

  14. #14
    Senior Member rduenas's Avatar
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    I've heard of people "fixing" the problem with JB Weld. Though, no details as to where exactly they put the JB Weld.

    Any ideas?

  15. #15
    Member jayruss's Avatar
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    Quote Originally Posted by rduenas View Post
    Any ideas?
    http://www.geocities.com/Hollywood/C...snowdumber.wav

  16. #16
    car dodger norskagent's Avatar
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    Well I rode it again today and noticed a regular ticking sound, however it was not every revolution - more like every 3rd or so. Which makes me think it's chain related. Hard to tell where it's coming from...
    1989 Schwinn Paramount OS
    1980 Mclean/Silk Hope Sport Touring
    1983 Bianchi pista
    1976 Fuji Feather track
    1979 raleigh track
    "I've consulted my sources and I'm pretty sure your derailleur does not exist"

  17. #17
    No plan. peabodypride's Avatar
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    Quote Originally Posted by rduenas View Post
    I've heard of people "fixing" the problem with JB Weld. Though, no details as to where exactly they put the JB Weld.

    Any ideas?
    If you can take the spline apart (the lockring needs some flat spanners, and you may or may not be able to generate enough torque) you can j-b weld the guts tight, apparently. Allegedly all FSA does is epoxy them.

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