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  1. #1
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    SRAM XX1? Should I look at anything else?

    Hey all. Not a very super avid poster, and did a search and only found a few older posts. I am looking to build my 2008 RFX into the best combo of light weight and strength. I am thinking 1x10 may be the way to go, and was wondering if the xx1 is the ticket or if I should also be looking at an XTR setup, or maybe a mix with some Race Face thrown in? I do have some money to spend so any/all input would be awesome.

    I live in the PNW for a few more months where they is a lot of root and rock bonk, but then will be moving to UT where it is not as much of an occurrence for much of the riding.

    Thanks everyone,
    Dave

  2. #2
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    Get an XX1 style (Wolf Tooth, Race Face will be releasing soon, Works Components in the UK) chainring and just go 1x10. Leaves you the freedom to choose want you want then.

  3. #3
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    SRAM XX1? Should I look at anything else?

    I was going to say the same about the Wolftooth chainring. But I think that the XX1 is the lightest out of the box still as a complete. I am sure you could spec. something lighter through online boutiques and stuff, but XX1 as a full group I believe is the lightest complete offering.

    The Wolftooth let's you use 10 speed groups the same. Looks promising...


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  4. #4
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    XX1 has a removable spider. So you can run a spiderless set up on the front. Would save a few grams there too!
    SS ==> Nut up or Shut up!

  5. #5
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    Thanks all.

    I see the 1x10 set-ups are obviously lighter...do you guys not miss the 42 tooth ring in the back? I am not all calves and lungs so in my mind it seems like a good idea. I would also have to add the xx1 adaptor to my DT 240s which I am assuming would add even more weight.

    One more thing I am confused on is if I will need a chain guide with the XX1 crank?

    (Oh and any dream set-ups would also be awesome to google)

    Cheers,
    Dave

  6. #6
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    You won't need a chain guide if you're using a clutch rear derailleur (SRAM Type 2, Shimano Shadow) and have an XX1 style chainring.

  7. #7
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    So by my quick internet math I come up with my current set-up:
    X0 9 rear derailleur 197g
    Xtr M971 front derailleur 480g
    X0 9 rear cassette 305/272g
    X0 9 shifter 225g x 2
    Raceface deuce XC crankset 820g

    Vs the XX1 set-up:
    XX1 rear derailleur 220g
    XX1 rear cassette 260g
    XX1 shifter 105g x1
    XX1 crankset 650g

    Anything else I am forgetting? The one thing I can't find a weight difference on is the DT240s xx1 conversion kit, but I can't imagine it will make up the 2lb difference.

  8. #8
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    Quote Originally Posted by gdnorm View Post
    Xtr M971 front derailleur 480g
    There is no way your front derailleur weighs more than your rear, let alone more than a pound. It's probably closer to 130g-160g. Assuming 150g, I get about a 1.5lb difference, which I don't think changes your conclusion.

  9. #9
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    I thought the same thing. I only did a brief search, but was surprised to find that weight. Looking at a few more sights you are completely correct.

    Found this deal today:
    https://www.outsideoutfitters.com/sh...FaU5QgodxTgACg

    The only problem I can see is that the only option is the 175mm crank arms; I am only 5'7".

  10. #10
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    I'm 5'7" and use 175mm cranks, no problem.

  11. #11
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    That is the best news of the weekend. Ordering now. One more question before hitting pay now....what is the 156Q vs 168Q option?

  12. #12
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    Q-factor. It's the distance between the arms. If you don't know which one works with your frame get the 168 option. You don't want your crank arms to bash/rub your chainstays.

  13. #13
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    The XX1 freehub is lighther than the standard freehub. By 10-15 grams.
    Race Reports, PreRide Reports, and General Rambling:

    www.roostersbikersedge.com
    http://www.ENVEcomposites.com

  14. #14
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    Which bottom bracket should I be looking at for my 08 Turner RFX? I see there are a number of options for the xx1 cranks.

  15. #15
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    I was going to say make sure you order the right bottom bracket. You need to know if it's regular GXP or BB30.

  16. #16
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    Any reason opinions as to one over the other?

  17. #17
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    SRAM XX1? Should I look at anything else?

    Quote Originally Posted by gdnorm View Post
    Any reason opinions as to one over the other?
    Not really an opinion, one fits and one doesn't. Bb30 and gxp are different. Bb30 is a press fit and gxp threads in. There's also press fit gxp but that's different from bb30 because its wider. What type of bottom bracket your frame accepts affects what bottom bracket and cranks you can run. It also affects qfactor.
    Last edited by litany; 05-27-2013 at 12:50 PM.

  18. #18
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    I gathered as much by looking at the SRAM site. Looks like my RFX threads over. Sweet. buying today and very excited. Thanks everyone for the heads up/help.

  19. #19
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    Quote Originally Posted by gdnorm View Post
    I gathered as much by looking at the SRAM site. Looks like my RFX threads over. Sweet. buying today and very excited. Thanks everyone for the heads up/help.
    Have you looked the reverse way and thought of replacing the frameset? A 2013 frame will be stiffer, lighter and you will feel the design changes at every crank turn. Your drivetrain is very good and cheaper to maintain. Thinking long term will you replace that 400$ cassette, 100$ ceramic pulleys, 120$ chainring with heavier parts? Alu 2x9+bash is still a very good option in UT rocks.

  20. #20
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    Absolutely not. The RFX is just insanely perfect mix for climbing and decending. I just rode a friends Slash 9. The RFX is much more of a goat up with much less flex in the back on the way down. Will ride it until they don't make linkage refresh kits for it.

  21. #21
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    Then enjoy!

  22. #22
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    Same! Can't beat riding on just about anything vs work!

  23. #23
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    I did 1x9 for a while and now run 1x10, use a reasonably priced truvativ AKA 1.1 crank set with removable spider, I run an MRP bling ring. X0 rear d and XX cassette, X9 ball bearing shifter.
    Nice, light, less than the XX1 stuff, and plenty of gears for me.
    Hardrock 29er, Niner EMD9, Cannondale F29, Camber Expert, 650b Nickel all gone.
    2014 Giant Anthem 27.5 here.

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