Niner Air 9 RDO 2 Satr GX1 or 2015 Specialized SJ HT Comp Carbon- Mtbr.com
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  1. #1
    DTL
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    Niner Air 9 RDO 2 Satr GX1 or 2015 Specialized SJ HT Comp Carbon

    Im looking for a carbon fiber hardtail for xc riding. Something with good power transfer and a more compliant ride than my M5 aluminum hardtail. These two bikes are specd similar with the Niner being priced a little higher but comes with a 120 reba compared to the SJ 95 mm reba, better tires, carbon seatpost and handlebars. Im wondering if anyone has had experience riding these either of these two carbon frames and if they can provide any input.

  2. #2
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    If your better at dh get the shorter fork. If your better at climbing get the longer fork.

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    Either looks good but I'd give the edge to the Niner. Even with the longer fork, they tend to climb really well.

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    The Niner looks to be more trail friendly with the 120mm fork.

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    Have you considered the regular carbon frame rather than the RDO?
    What's selling you on the RDO?
    Just curious.

    I do like the 120 BTW even if a bit heavier.

  6. #6
    DTL
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    Quote Originally Posted by JohnWhiteCD View Post
    Have you considered the regular carbon frame rather than the RDO?
    What's selling you on the RDO?
    Just curious.

    I do like the 120 BTW even if a bit heavier.
    I have considered the non RDO carbon frame but in doing some research learned it doesnt have as much vertical compliance in the seat stays resulting in a less comfortable ride. Not sure how true this is but I would consider the Air 9 Carbon frame if there isnt much difference. Another thing I am concerned about is the chainstays on the niner are 9mm longer at 439 vs the 430 mm chainstays on the SJ. I have an aluminum SJ now and really like the short chainstays.

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    Cool. Yeah, I don't know what kind of compliance to ever expect from any hardtail. As I've read in another thread on the subject, "A hardtail is a hardtail." I'm going with some beefy tires and if things get rough, perhaps an RDO seatpost.

  8. #8
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    The RDO is going to be stiff...just because something is carbon doesn't mean its compliant. I have a M5 Stumpy HT...nice riding bike IMHO. Adding a flexy seat post helped mine (Niner RDO) and lower air pressure.
    Geologist by trade...bicycle mechanic (former) by the grace of God!

    2018 Niner RKT 9 RDO - enduro AF

  9. #9
    DTL
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    TiGeo, I agree with you. My M5 aluminum HT 29 is a darn nice ride I just figured SJ carbon would be even better and the Niner peaked my interest as well. Did you notice a big difference when you went to the carbon seat post?

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    ^^^Yes.

    Sent from my SM-G900V using Tapatalk
    Geologist by trade...bicycle mechanic (former) by the grace of God!

    2018 Niner RKT 9 RDO - enduro AF

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