Page 1 of 2 1 2 LastLast
Results 1 to 25 of 49
  1. #1
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89

    40T sprocket on a 1X9 system.. working awesome ;)

    if anyone wonder if a 40T/42T sprocket can work on a 9spd system..
    it does! just need a little work but it works great!
    have a look how i did it.

    Mountain biking blog

  2. #2
    RIP Friendgirl
    Reputation: Bordershy's Avatar
    Join Date
    Jan 2004
    Posts
    363
    What shifter are you using on that 10sp derailleur?
    SPD pedals are an absolute menace to the well-being of the world, and ought be banned immediately.

  3. #3
    mtbr member
    Reputation:
    Join Date
    Dec 2005
    Posts
    337
    Hint:

    You can disassemble some 8 speed cassettes - such as CS-HG31-8, replace all spacers with those from 9 speed cassette, add 40T cog and get a "native" 9 speed 11-40 cassette.

    11-32 8 speed with replaced spacers + one-up cog has 11-13-15-17-21-24-28-32-40 spacing and no breaks in the range. It works awesome.

    CS-HG41-8 also works fine.

  4. #4
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    Quote Originally Posted by Bordershy View Post
    What shifter are you using on that 10sp derailleur?
    im using sram x7 9spd shifter. sram shifters works perfact with the zee derailleur.

  5. #5
    mtbr member
    Reputation:
    Join Date
    Aug 2008
    Posts
    3,438
    More details please. Is there a reason you're using a Zee derailleur? Can you post a close up pic of the cassette?

  6. #6
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    Quote Originally Posted by the-one1 View Post
    More details please. Is there a reason you're using a Zee derailleur? Can you post a close up pic of the cassette?
    no specific reason, just like the zee! great derailleur.

    40T sprocket on a 1X9 system.. working awesome ;)-img_20140415_135702.jpg40T sprocket on a 1X9 system.. working awesome ;)-img_20140415_135740.jpg

  7. #7
    Butts Up Fast!
    Reputation: Stonebreaker's Avatar
    Join Date
    Oct 2009
    Posts
    400
    Any mods necessary to use a SRAM 9 speed shifter with a ZEE 10 speed derailleur?

  8. #8
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    just plug and play, im using x7 works great.

  9. #9
    mtbr member
    Reputation: Fix the Spade's Avatar
    Join Date
    Aug 2008
    Posts
    2,382
    Quote Originally Posted by Stonebreaker View Post
    Any mods necessary to use a SRAM 9 speed shifter with a ZEE 10 speed derailleur?
    No, SRAM 9 speed shifters and Shimano 10 speed mechs use the same cable pull ratio, so they work together.

    I don't think either of them planned ahead for that...

  10. #10
    squish, squish in da fish
    Reputation: fishwrinkle's Avatar
    Join Date
    Jul 2012
    Posts
    987
    looks good, but that 5 tooth jump in the middle of your cassette doesn't bother you? it'd drive me nuts. also, what ring are you running, looks like maybe a 30t?

  11. #11
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    i rarely noticed it. sometimes in low speed maybe.
    try fine tune it a little, tension or Release the cable adjuster knob.
    i run 32T up front.

  12. #12
    RIP Friendgirl
    Reputation: Bordershy's Avatar
    Join Date
    Jan 2004
    Posts
    363
    A 20T cog would make it almost perfect. I may never go 10sp if this works out.
    SPD pedals are an absolute menace to the well-being of the world, and ought be banned immediately.

  13. #13
    mtbr member
    Reputation: CarolinaPanthers's Avatar
    Join Date
    Feb 2013
    Posts
    200
    Great work, eyco! I've been wondering this myself but I never actually tried to test anything. I suppose losing the 18t was the best compromise, could you choose to lose the 16t or would that not be doable/it would be more beneficial to keep that cog?

  14. #14
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    yes when i disassemble the cassette i had to chose between the 16 to the 18, i keep'd the 16 eventually cause i figured it will be more beneficial for speed or cadence then the 18.

  15. #15
    mtbr member
    Reputation: Dictatorsaurus's Avatar
    Join Date
    Sep 2009
    Posts
    2,539
    The concern is the HG-61 could gouge Al freehubs.

    Cool solution though. I might try it myself.

  16. #16
    mtbr member
    Reputation:
    Join Date
    Oct 2005
    Posts
    390
    Awesome work! Thanks for sharing

    I might have to try this as well. I have most of the parts, and wasn't stoked about switching to 10 speed.

    Was it difficult to remove the pins? Do you have any tips to share for doing this?

  17. #17
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    glad it was helpful.. im also dont see the point of 10spd, 9spd is more then Enough.

    the pins got out very easily, i knock them out using a hammer and a nail, but anything similar can work.
    after you build the cassette the pins will be a little longer now, so i grind them a little and left just a tiny bit, then i hammer the top of the pin's to close them good.
    Last edited by eyco; 04-17-2014 at 08:10 AM.

  18. #18
    mtbr member
    Reputation:
    Join Date
    Oct 2005
    Posts
    390
    Thanks again...the hammer is my favourite bike tool. I think I will give it a shot.

  19. #19
    Chris Bling
    Reputation: dustyduke22's Avatar
    Join Date
    Aug 2006
    Posts
    1,042
    This is great news. Of course I just purchased a full 10 speed drivetrain in order to go 1x. Good thing I still have all my 9sp stuff stuff for a backup bike
    The obsession of wheels fused with the passion of cycling
    Affordable Custom Wheels

  20. #20
    RIP Friendgirl
    Reputation: Bordershy's Avatar
    Join Date
    Jan 2004
    Posts
    363
    This IS a great thing, but don't overlook the elephant in the room. $90-100 is a lot for one cog.
    SPD pedals are an absolute menace to the well-being of the world, and ought be banned immediately.

  21. #21
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    yes it is a lot for a piece of aluminium... the new e*thirteen 40T should be around 70$..

  22. #22
    Chris Bling
    Reputation: dustyduke22's Avatar
    Join Date
    Aug 2006
    Posts
    1,042
    Quote Originally Posted by Bordershy View Post
    This IS a great thing, but don't overlook the elephant in the room. $90-100 is a lot for one cog.
    That is a small price to pay to never have to use a front derailleur again! I won't ever go back to a 2x system.
    The obsession of wheels fused with the passion of cycling
    Affordable Custom Wheels

  23. #23
    mtbr member
    Reputation: mojojojoaf's Avatar
    Join Date
    Sep 2008
    Posts
    748
    SRAM and Shimano compatibility? Say it ain't so-

    On the other hand I am definitely going to do this.

  24. #24
    mtbr member
    Reputation:
    Join Date
    Dec 2012
    Posts
    152
    No flames, please...

    What about adding it to a 7spd cassette switched to 8spd spacing?

  25. #25
    mtbr member
    Reputation: eyco's Avatar
    Join Date
    Jun 2010
    Posts
    89
    Quote Originally Posted by BATRG3 View Post
    No flames, please...

    What about adding it to a 7spd cassette switched to 8spd spacing?
    Can't answer that.... it's a try and error situation. Basically it could work with a 8 spd shifter, i dont know what gears you have on this cog. You need to see whats the jump between the lower gear to the 40t.
    But in this case its batter to move to 9 or 10 spd system

Page 1 of 2 1 2 LastLast

Similar Threads

  1. Need some help on sprocket sizing
    By rbags68 in forum Singlespeed
    Replies: 11
    Last Post: 04-27-2014, 01:53 AM
  2. Sprocket Kids
    By alaskamatt in forum Alaska
    Replies: 4
    Last Post: 04-17-2014, 06:49 PM
  3. SLX M675 36t sprocket?
    By stygz1 in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 0
    Last Post: 12-28-2013, 05:23 AM
  4. Replies: 5
    Last Post: 09-04-2012, 09:32 AM
  5. Sprocket hop?
    By GoPhilly in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 5
    Last Post: 07-05-2011, 05:57 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •