2x9 chainring size

naffa
naffa Posts: 126
edited November 2012 in MTB workshop & tech
Just wondering what size rings you guys recommend.
Currently got the standard 44-32-22 but want to go 2x9 so thinking of 36-22 instead.
Running 11-36 on the back.

Thanks Nathan
Cheers Nathan.

Comments

  • nicklouse
    nicklouse Posts: 50,675
    how are you going to go 36-11 9spd on the rear?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Chunkers1980
    Chunkers1980 Posts: 8,035
    If you know why you want to go 2 x 9 then surely you should know?
  • naffa
    naffa Posts: 126
    edited November 2012
    nicklouse wrote:
    how are you going to go 36-11 9spd on the rear?

    Sorry mate should have read 11-34 :roll:

    Just want to know whether anyone thinks a 36 front ring is the way to go?

    Want to simplify things thats all. Been over Cannock chase again this afternoon and I didn't use the biggest front ring again so it is mostly redundant for that type of riding
    Cheers Nathan.
  • Chunkers1980
    Chunkers1980 Posts: 8,035
    Are you sure? You might want to count the teeth.
  • naffa
    naffa Posts: 126
    Chunkers1980 wrote:
    Are you sure? You might want to count the teeth.

    Recounted - see my reply above
    Cheers Nathan.
  • nicklouse
    nicklouse Posts: 50,675
    naffa wrote:
    nicklouse wrote:
    how are you going to go 36-11 9spd on the rear?

    Sorry mate should have read 11-34 :roll:

    Just want to know whether anyone thinks a 36 front ring is the way to go?

    Want to simplify things thats all. Been over Cannock chase again this afternoon and I didn't use the biggest front ring again so it is mostly redundant for that type of riding
    not shimano or Sram then unless it is a modded 36-12 that has been fitted with a 11T instead of a 12T.

    that is the reason as it seems you have then an odd set of cogs that might change front cog options.

    so what are the cog sizes?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • naffa
    naffa Posts: 126
    SO just imagine for a second that I've counted the small cog incorrectly and after a recount theres 12 teeth there? :lol:
    Cheers Nathan.
  • The Rookie
    The Rookie Posts: 27,812
    Be much like Dragon's den when the presenter realises all the dragons have just dropped out.... :mrgreen:
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • nicklouse
    nicklouse Posts: 50,675
    naffa wrote:
    SO just imagine for a second that I've counted the small cog incorrectly and after a recount theres 12 teeth there? :lol:
    well you will get very different answers.

    what have you got? 12-14-16-18-21-24-28-32-36?

    and presuming you have a 12 rather than an 11 would give very very different answers

    I can tell you what i use for my 11-34 2 ring set up but again what are you using it for?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • 02gf74
    02gf74 Posts: 1,171
    I am going to go 2x9, 39/26 front and 11-34 rear.

    The front ring sizes you list are quite small; depending on the chainset you plan to fit, assuming you are not remoiving the largest ring on a 3 ring chainset, then most 2 ring chainset limit the small ring to 24T; so you are not going to be able to fit a 22T.
  • njee20
    njee20 Posts: 9,613
    Not true, SRAM and XTR M985 ones would stop you using a 22t inner, but SLX/XT/M980 Trail just use a 64/104 BCD.
  • mrmonkfinger
    mrmonkfinger Posts: 1,452
    naffa wrote:
    Just wondering what size rings you guys recommend.
    Currently got the standard 44-32-22 but want to go 2x9 so thinking of 36-22 instead.
    Running 11-36 on the back.

    Thanks Nathan

    24/36 and 11-34 would be my first choice for a trail bike. I'm currently using 22/32 and sometimes feel like I could do with the big ring being a bit larger. If it was for an XC bike I'd be looking at something a bit bigger up front, probably 26/39.

    It's all personal choice though.
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  • The Rookie
    The Rookie Posts: 27,812
    I ran mine 2x9 on 22/32, wanted more top speed so went 22/36 but then given the gears I actualy used swapped to a 26/36 and found that ideal for a 2x9, although I am now going 1x9 (32T).
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • njee20
    njee20 Posts: 9,613
    I went 32/44, then 30/42 then 28/40 - which I found the best.

    Personal innit.
  • lostboysaint
    lostboysaint Posts: 4,250
    I have 39/27 on my 2x9 set up (11x34 cassette). Works very well.
    Trail fun - Transition Bandit
    Road - Wilier Izoard Centaur/Cube Agree C62 Disc
    Allround - Cotic Solaris
  • The Rookie
    The Rookie Posts: 27,812
    njee20 wrote:
    Personal innit.
    Absolutely!
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • naffa
    naffa Posts: 126
    Cheers for all the replys.
    I've ordered a 36t to go with the 22. I'll get a bash as well.
    Cheers Nathan.

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