Results 1 to 5 of 5

Thread: Going 2x9 help?

  1. #1
    mtbr member
    Reputation:
    Join Date
    Sep 2008
    Posts
    150

    Going 2x9 help?

    Hey guys, I'm looking to change my XT triple ring set up to a more usable 2x9. Since I never use my granny and hardly ever need more than my 44-11 and 32-34 gear combo, I was thinking of going to a 42/28. I'd be doing this on my hardtail race rig and not my "do it all" dual suspension, so weight is somewhat important. Any thoughts on what brand rings and where to get them? Thanks!

  2. #2
    mtbr member
    Reputation:
    Join Date
    Jun 2007
    Posts
    562
    Quote Originally Posted by GS833
    Hey guys, I'm looking to change my XT triple ring set up to a more usable 2x9. Since I never use my granny and hardly ever need more than my 44-11 and 32-34 gear combo, I was thinking of going to a 42/28. I'd be doing this on my hardtail race rig and not my "do it all" dual suspension, so weight is somewhat important. Any thoughts on what brand rings and where to get them? Thanks!
    Check out this thread which details my experience of doing exactly what you are wanting to do: 2x9 XT 42/28 Blackspire Conversion

    Bottom line is that I am happy with my current set-up using the Specialties TA rings (40/26). If I didn't have the spacing issues with the Blackspire 42/28 rings, I would have upgraded to a XX front derailleur (now you can upgrade to a X0 or X9 double front derailleur), which I think would have worked much better and taken care of my shifting issues.

    By the way, I still have my Blackspire rings (42/28) if you are interested. They don't have much wear on them at all.

  3. #3
    'All over it!'
    Reputation: lornibear's Avatar
    Join Date
    Aug 2006
    Posts
    1,105
    I am in agreement with Fishlips - You can't go wrong with either Blackspire or E Thirteen. Both make strong and lightweight chain rings, I have an E Thirteen 36T on my current set up and it weighs in at 30g.

  4. #4
    mtbr member
    Reputation:
    Join Date
    Jan 2004
    Posts
    268

    go 26/40

    I have m770 180mm cranks with shimano 26 & an e-thirteen 40 tooth in the middle ring, 11-34 m770 cluster m970 GS rear D/ front D & shifters....only combo that's better is my new m980 group set

  5. #5
    Rider and Wrench
    Reputation: knottshore's Avatar
    Join Date
    Jan 2008
    Posts
    1,426
    I have been playing with a similar set up, I ordered some shimano rings 24T, 26T and 36T all either XT, XTR, SLX or LX in 104 or 64 bcd to install on some Shimano 970 XTR Cranks.

    I ran into an issue where the 26T granny ends up too close to the middle ring and will not let the chain sit on it properly. At first I though it was because of the odd matching to the 32T middle (while I was waiting on the 36T) but it does the same thing with the 36T. I had some spacers for chainring bolts laying around and put them between the crank and ring... I just did it last night and have yet to give it a proper test but it seemed to offer a decent range up on the stand... some chain rub on the FD in the extremes.

    Has anyone else run it to this? I saw some mention of specific "spacing" on 970 cranks in the thread that fishlips posted 2x9 XT 42/28 Blackspire Conversion but ironically my issue is just the opposite... too little spacing, and I am using a narrower 10spd chain too add to the mess? go figure-
    I Just wish I could ride more!


Posting Permissions

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