2*9 suggestions?- Mtbr.com
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  1. #1
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    2*9 suggestions?

    My trusty ISIS BB (probably the only one in existence to last more than a single season) has developed a creaking noise. Instead of just getting a new box, I'd like to replace the whole setup. The easy answer would be just buying a new XTR crank, but I really like the 2*9 setup...

    Any suggestions? Does anyone have any experience with modified roadie triples?

    Bike is a 2007 Scalpel btw. Current setup is an 108mm FSA Platinum Pro TI BB + FSA Carbon Pro Team Issue crankset...

    Also posted in the Cannondale forum.
    Little bit o' pain never hurt anyone....

  2. #2
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    FSA K force light 2x9? Not cheap though...

  3. #3
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    I just installed the new FSA 2x9 (44/29) on my SuperFly. So far it's been great. I love the 29 over the 32. The shifting has been flawless (for $$$ it should be).
    My crankset came in at 690g complete w/ BB.
    Do take note that the set is not compatible with 73mm shells with BB mounted front derailluers (E-Type)

  4. #4
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    FSA K-Force Light: 712g

    FSA K-Force Light 44/29: 712g
    it comes with 3 spacers so no problem for 73 BB shell AND E-type derailleur as well!
    Attached Images Attached Images

  5. #5
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    Quote Originally Posted by nino
    FSA K-Force Light 44/29: 712g
    it comes with 3 spacers so no problem for 73 BB shell AND E-type derailleur as well!

    The instructions explicitly state these cranks are not compatible with 73mm bb shell with E-Type FDs.

    Have you tried this config?

  6. #6
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    it sucks that nobody else is doing a lightish 2x9 mtb crankset other than square taper or isis that doesn't cost a fortune. they would sell like hotcakes.

  7. #7
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    Easy to do a 26/38 on a 4 bolt outboard crank. If you do the math you only lose the 44-11/&12. Who really spends a significant amount of time there?

    Plenty of light-ish options on the crank. Might need more chainring options but I think there are a couple of light options...stronglight for the 38...do they make a 40?

    G
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  8. #8
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    Middleburn's?

  9. #9
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    stronglights has some double mtn cranks,dont know the interface.

  10. #10
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    those stronglites are pretty cool but they are isis as well

  11. #11
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    my 38x26


  12. #12
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    2 x 9

    Any 94/58 BCD crank is awesome for 2 x 9 setups.

    I run a 29/42 on Race Face Turbines, they are readily available on EBay used for under $125 sometimes New Old stock appears, Turbine LP's are good too. both of those are under 427 grams for the arms.
    Niner Jet9

    Niner Air9

  13. #13
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    one option

    You might check out Rotor - they were showing off a pretty cool looking spider for a 2x9 setup at Sea Otter that had 110/74mm BCD purpose made for a 2x9 setup. I think the spider can swap out if you ever want, and their BB setups also look pretty cool.

    Having said all that, someone here might know why this is not such a great idea (would love to hear since I am considering buying) but I figured I'd share. Have not done the math on weights so will be interested to hear this group's verdict on it from that angle.

    Cheers
    Karl Etzel
    Silicon Valley Cycling Center - Premium Custom Bikes
    Bike fitting specialists for road & MTB
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  14. #14
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    Wink

    Quote Originally Posted by kretzel
    You might check out Rotor - they were showing off a pretty cool looking spider for a 2x9 setup at Sea Otter that had 110/74mm BCD purpose made for a 2x9 setup. I think the spider can swap out if you ever want, and their BB setups also look pretty cool.

    Having said all that, someone here might know why this is not such a great idea (would love to hear since I am considering buying) but I figured I'd share. Have not done the math on weights so will be interested to hear this group's verdict on it from that angle.

    Cheers
    I really like their 27/40 tooth option that they are going to offer. A much better option than 29/44 for most riders/racers in my opinion.

    G
    You can't depend on honest answers from dependant hands...

  15. #15
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    Quote Originally Posted by fernandoj
    my 38x26


    where did you get those rings?

  16. #16
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    Quote Originally Posted by kretzel
    You might check out Rotor - they were showing off a pretty cool looking spider for a 2x9 setup at Sea Otter that had 110/74mm BCD purpose made for a 2x9 setup. I think the spider can swap out if you ever want, and their BB setups also look pretty cool.

    Having said all that, someone here might know why this is not such a great idea (would love to hear since I am considering buying) but I figured I'd share. Have not done the math on weights so will be interested to hear this group's verdict on it from that angle.

    Cheers

    They won't be available until fall.

  17. #17
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    Quote Originally Posted by Broseph
    it sucks that nobody else is doing a lightish 2x9 mtb crankset other than square taper or isis that doesn't cost a fortune. they would sell like hotcakes.
    Well, how difficult is it to get a 3x9, ditch the large CR for a BBG bashgaurd, and resell the CR? This method opens up one's options to just about anything.

  18. #18
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    Quote Originally Posted by f3rg
    Well, how difficult is it to get a 3x9, ditch the large CR for a BBG bashgaurd, and resell the CR? This method opens up one's options to just about anything.
    how many "new" 3X9 cranksets are sold that I can run a 29/42 combo on with a narrower spindle? i can't really think of many. surly is making their mr. whirly crankset with a compact 2x9 option but the weight pretty much rules those out for me. i'll just stick with my next lp's for a while.

  19. #19
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    I got them through a boutique near my home but you can get them too in starbike.com

  20. #20
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    Clavicula 38/26

    My setup. THM Clavicula crankset, TA Specialites Chinok 38 / 26T rings. Total weight 517g.

  21. #21
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    Quote Originally Posted by Kristina
    My setup. THM Clavicula crankset, TA Specialites Chinok 38 / 26T rings. Total weight 517g.
    Photos please!!! exactly the same rings than me Chinook

  22. #22
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    clavicula 38/26

    Quote Originally Posted by fernandoj
    Photos please!!! exactly the same rings than me Chinook
    Here it is. It is not assemblet yet. The two missing screws are hidden behind the crankset.
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  23. #23
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    How much does the Mr. Whirly crankset weigh, anyone know?

  24. #24
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    Not cheap but the extralite e-bones(498 grams w/o chainrings) is a cool one that you can pick what rings you put on..and its wickid light.

    http://www.extralite.com/index_euro.htm

  25. #25
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    im running a 2 x 9 using those TA 38/26 rings, but im using a MTB front mech, a sram Xgen, seems to struggle sometimes, the maximum throw from granny to middle is 12 teeth, would a top pull road mech work better, or even an XTR fr mech, because of the better quality, what would you suggest?

  26. #26
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    Quote Originally Posted by RockStarRacing
    im running a 2 x 9 using those TA 38/26 rings, but im using a MTB front mech, a sram Xgen, seems to struggle sometimes, the maximum throw from granny to middle is 12 teeth, would a top pull road mech work better, or even an XTR fr mech, because of the better quality, what would you suggest?
    I've been using a XT 08 FD without any problem, it's really smooth.

    Perhaps a double front derailleur will work nice but you must consider road mech are all bottom pull

    Kristina you have the lightest crankset I've ever seen

  27. #27
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    No good

    Quote Originally Posted by curtlo29
    How much does the Mr. Whirly crankset weigh, anyone know?
    i can't remember exactly, but i think it is close to what and LX crankset weighs

  28. #28
    memento mori
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    I run a Cannondale cx-2 with 29-38 on an Ultegra bb to a 11-34.C-dale 29 and Vuelta 38.So far so good.

  29. #29
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    Got some great news from Middleburn last week. Looks like they are going to start offering the DUO large chainring in a 38 and 40 tooth hardcoat option... Happy happy

  30. #30
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    fernandoj: I hope I will get them assembled on my bike this weekend and will have time to give them a first ride.

  31. #31
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    Quote Originally Posted by RockStarRacing
    im running a 2 x 9 using those TA 38/26 rings, but im using a MTB front mech, a sram Xgen, seems to struggle sometimes, the maximum throw from granny to middle is 12 teeth, would a top pull road mech work better, or even an XTR fr mech, because of the better quality, what would you suggest?
    I am using bottom pull Force and Rival fd's with grip shifters on both of my bikes. I had to convert the HT to bottom pull by bolting on a plastic bottom bracket guide and mounting a cable stop off of the bottom of the downtube cage bolt and a couple of plastic guides. Does not look the prettiest but works super well and ends up being pretty light.

    Am toying with getting a rivet mount cable stop and mount it where a normal down pull housing stop goes but not sure I want to drill the couple of small holes in the downtube to do it.

    G
    You can't depend on honest answers from dependant hands...

  32. #32
    2006 sswc RockStar
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    Quote Originally Posted by SuspectDevice
    Got some great news from Middleburn last week. Looks like they are going to start offering the DUO large chainring in a 38 and 40 tooth hardcoat option... Happy happy
    as long as the inner ring goes down to 28 teeth, that is what im after 28/42.

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