Custom cassatte gears

wobbem
wobbem Posts: 283
edited February 2011 in MTB workshop & tech
I'm thinking to convert my 29er to a 1x9 set up.
Any one know of a supplier for custom gears iin the UK?
I'm thinking of a 11-38 combo with 26 on the front, I know shimano do a 12 -36.
Will a Tiagra derailluer 9 speed work with this combo or will I need a mid cage derailluer?
Many thanks
Don't think, BE:

Comments

  • Chunkers1980
    Chunkers1980 Posts: 8,035
    Rear mechs have a max rear sprocket mix. IIRC a 105 is 27 - so that mech is out for this.

    26 on the front? - are you building a hill climb bike :?
  • wobbem
    wobbem Posts: 283
    Use my granny alot, even using the lowest combo 36 rear and 26 I get a gain ratio of 1.5 which is still higher than my 34 rear 22 front combo at the moment.
    Don't think, BE:
  • bennett_346
    bennett_346 Posts: 5,029
    Chunkers1980 wrote:
    Rear mechs have a max rear sprocket mix. IIRC a 105 is 27 - so that mech is out for this.

    26 on the front? - are you building a hill climb bike :?
    He has a 29er...
  • Chunkers1980
    Chunkers1980 Posts: 8,035
    Yes - but this is for a 1x9 setup are you telling me that you plan on one ring up front that's 26t?[/b]
  • The Rookie
    The Rookie Posts: 27,812
    Unless you go 1x10, this is the only way I could find of going 1x9 with 36t http://cgi.ebay.co.uk/BIG-RANGE-11-36-T ... 256117a13f

    You could get the 38t big wheel you see on ebayand add to your cassette, think they come from Australia.

    Simon
    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.
  • wobbem
    wobbem Posts: 283
    Yep, I rarely use the lowest gear on the middle ring at the mo which is a 6.1 ratio (32-11), only down hill , I' d rather spin out and still climb. That's why I'm after cutom gears, I can play around a bit.
    So it looks like I have to use a mid cage derailluer? Any other possiblities?
    Don't think, BE:
  • Chunkers1980
    Chunkers1980 Posts: 8,035
    Struggling to workout what you are trying to achieve.

    Are you sure you're not after a 2x?? setup?
  • wobbem
    wobbem Posts: 283
    Cheers , found that site earlier, bit bl**dy expensive also here:
    http://luckynino.blogspot.com/

    Shimano does this
    http://cgi.ebay.co.uk/Shimano-Deore-HG61-Cassette-12-36-29er-Mountain-Bike-9-/330522236455?pt=Cycling_Parts_Accessories&hash=item4cf4a91627
    Which I've modded by splitting it and putting the 36 on an XT
    Ah found it 38 t
    http://www.bikeexchange.com.au/bikes/show/100153755-other-38-tooth-rear-sprocket

    Basicly I have a On One ti 29er, now marketed as a single speed, because there is little clearance between the chain stay, and when mud gets involved I always get the chain jammed, yes with new chain and sprockets, so the idea was to pack out the drive side and run a 1x9.
    Or get an Alfine, but reports are coming thru that the new 11 is busting in low gears and they are heavy.
    Don't think, BE:
  • Chunkers1980
    Chunkers1980 Posts: 8,035
    You modded an XT Cassette to change the 32/34 sprocket with a 36 from another?

    :?
  • wobbem
    wobbem Posts: 283
    Racing with it for the last year mate, no worries. Removing the pins does not mean the ring will flex and damage the hub.
    Don't think, BE:

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