SRAM or Shimano BOOST crank recommendations- Mtbr.com
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  1. #1
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    SRAM or Shimano BOOST crank recommendations

    Switching to a Boost frame and looking for a direct mount so I can run spiderless chainring.

    I've always run X9 and found them simple and easy to use. Not familiar with Shimano cranks.

    Looking for something simple and reliable with good availability of after market chainrings.

    Would also like some clarification on SRAM's new GX and NX and how they compare to X5/X9 etc.


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  2. #2
    Downcountry AF
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    I'd go Raceface Turbine Cinch with boost chainring. what's you budget?

    between Shimano and Sram cranks, I'd go Shimano every time.
    Rigid SS 29er
    SS 29+
    Fat Lefty
    SS cyclocross
    Full Sus 29er (Yuck)

    Stop asking how much it weighs and just go ride it.

  3. #3
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    Doing a quick search and Shimano M-8000 XT keeps coming up. Looks like an integrated spider. Does Shimano offer a spider less option?


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  4. #4
    Downcountry AF
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    Shimano doesn't make a direct mount crank that i'm aware of. that's why i said raceface. They make some nice cranks depending on what you want to spend. also available in 24mm spindle like Shimano or 30mm.

    I have older Turbines on my SS and Aeffect direct mount on my fatbike. i like them both, but if i had carbon crank money, I'd go carbon.
    Rigid SS 29er
    SS 29+
    Fat Lefty
    SS cyclocross
    Full Sus 29er (Yuck)

    Stop asking how much it weighs and just go ride it.

  5. #5
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    I'd be looking at the Turbine Cinch and SRAM GX1400, too. They're pretty much a tossup. Flip a coin, go on looks or brand preference, etc.

    Turbine Cinch comes with a direct mount chainring, while the SRAM comes with a chainring on a removable spider.
    So, the SRAM is actually a fuzz lighter if you account for saving ~70g of spider, but then you have to buy a direct mount chainring for it. We're talking very small differences in both weight and cost, but in this case, it's actually lighter and as/slightly more expensive intially, instead of heavier and cheaper, as just looking at specs would suggest. The light and inexpensive SRAM Team GXP BB may even things out cost-wise, though, as the RF one doesn't have the best track record(as of a couple years ago, anyway), and may have you wanting to upgrade.
    Whether you consider it a pro or con, the Cinch uses the Shimano ISIS drive crank tool for the threaded ring that holds the chainring in place vs. 3 T25 bolts for the SRAM, which you'll need if you go RF.

    I have the GX1400, but no real preference between the two.

  6. #6
    western NC
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    The Aeffect setup is only 20gr heavier than the Turbine cranks, and $80 cheaper. I'm 210lbs geared up, and have been riding a set (came with the bike) since late January with zero issues.

  7. #7
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    Is GX = X9? NX = X5?


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  8. #8
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    GX apparently replaces X7/X9, though its components and their construction doesn't quite match up(the 11sp derailleurs have a different design, adding to the confusion), IMO. Then there's X1, which...well, I can't tell the difference just from briefly checking out bikes with both, and am not sure where that's supposed to fall in the lineup. Unless something has changed, though, the GX 1400 and X1 1400 cranks are the same, with matching specs. Ironically, the GX version was $10 more at jensonusa when I googled to double-check before posting this

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