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  1. #1
    Join Date
    Oct 2017
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    Evergreen Co
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    XT 8100 with Sram Cassette?

    I have a few questions I'm going to clump together.

    I bought my wife a used Spot Mayhem this Spring with GX Eagle. For the life of me, I can't get it to shift smoothly. I've replaced cables & housing (optislick), chain (XO1) and cassette (1295). It shifts 'pretty well' in the stand but on the the trail is just clunky and often will has a few really bad scary sounding shifts per ride. I have had no issues getting XO1 stuff to be flawless in the past. First question, it seems like a lot of people complain about GX Eagle, does it just tend to slowly break down over a few thousand miles? She has put about 1000 miles on the bike since we bought it and the drivetrain likely has a few thousand total miles. I notice a lot of play in the B knuckle and the shifter still is a little stiff even with new cables/housing.

    Second question, has anyone run a Shimano 8100 shifter and der with Sram Cassettes and Chains? I don't quite want to shell out the money for a new crankset (she has a Sram Crank, meaning no Shimano rings), cassette, and Driver Body. At that point I might just try AXS... or new Eagle stuff.

    We're leaving on the Colorado Trail in a few weeks, so I'm not overly tempted to watch it slowly degrade over 550 miles of riding...

  2. #2
    Join Date
    May 2008
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    On a genuine ol' fashioned authentic steam powered aereoplane
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    16,810
    Even at XO or XX1 level the stuff just dies on me after like 1000-1500 miles and the shifting just slowly gets worse and worse.

    I recently made the full jump to XT 12spd after running SRAM for years. It's worth it. The shifting is just so much better and it's all in the cassette. You can't fake it with XT shifters and a SRAM cassette unfortunately. I looked into it.

    I converted my rear hub to micro spline (5 minute job on a DT Swiss 350 hub) and found a super nice Wolftooth front ring for Shimano 12spd tooth profile that fits a SRAM direct mount X01 crankset.

    Make the switch. The shifting is amazing.

  3. #3
    Join Date
    Oct 2017
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    Evergreen Co
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    Good thoughts.

    I had first generation XO1 that lasted 4000 miles with zero issues. Things I’ve bought since have not held up at all.

    I hadn’t considered that there were rings that would allow a SRAM crank to work with Shimano stuff. That might make it a little easier to justify.

    Quote Originally Posted by Whiteroom_Guardian View Post
    Even at XO or XX1 level the stuff just dies on me after like 1000-1500 miles and the shifting just slowly gets worse and worse.

    I recently made the full jump to XT 12spd after running SRAM for years. It's worth it. The shifting is just so much better and it's all in the cassette. You can't fake it with XT shifters and a SRAM cassette unfortunately. I looked into it.

    I converted my rear hub to micro spline (5 minute job on a DT Swiss 350 hub) and found a super nice Wolftooth front ring for Shimano 12spd tooth profile that fits a SRAM direct mount X01 crankset.

    Make the switch. The shifting is amazing.

  4. #4
    Join Date
    May 2008
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    On a genuine ol' fashioned authentic steam powered aereoplane
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    16,810
    Quote Originally Posted by Tailwind View Post
    Good thoughts.

    I had first generation XO1 that lasted 4000 miles with zero issues. Things I’ve bought since have not held up at all.

    I hadn’t considered that there were rings that would allow a SRAM crank to work with Shimano stuff. That might make it a little easier to justify.
    https://www.wolftoothcomponents.com/...e-chain#loaded

  5. #5
    Join Date
    Jan 2009
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    SLC burbs
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    4,188
    Quote Originally Posted by Tailwind View Post
    I hadn’t considered that there were rings that would allow a SRAM crank to work with Shimano stuff. That might make it a little easier to justify.
    That's what I'm now running on my Intense which came with a full SRAM drivetrain (Eagle GX cassette/derailleur/shifter and Trutativ Stylo cranks). I swapped the freehub body on the DT wheels (as WG said it's a 2 minute $70 job) and replaced cassette/derailleur/shifter with the new XT stuff. I kept the Stylo cranks and my Garbaruk oval ring which is compatible with both Eagle and HG chains (despite the tooth profile being a bit different when you compare a SRAM ring with Shimano one). The shifting is completely flawless, better than it ever was with the Eagle drivetrain, so even if I'm losing a bit of efficiency by not using a dedicated Shimano ring (or the Wolftooth one WG linked) it was a very worthy upgrade.

  6. #6
    Join Date
    Jan 2008
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    BC to CO
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    Quote Originally Posted by Tailwind View Post
    I hadn’t considered that there were rings that would allow a SRAM crank to work with Shimano stuff. That might make it a little easier to justify.
    North Shore Billet makes a great Shimano HG12 ring for SRAM direct mount cranks.
    North Shore Billet Sram 1x12 HG12 Shimano direct mount chainring

  7. #7
    Join Date
    Sep 2012
    Posts
    426
    Quote Originally Posted by Dee Hubbs View Post
    North Shore Billet makes a great Shimano HG12 ring for SRAM direct mount cranks.
    North Shore Billet Sram 1x12 HG12 Shimano direct mount chainring
    North Shore makes some nice quality rings....running a 12 speed ring on 8000 cranks without issue. Nice guys to talk shop with as well if you have questions.

  8. #8
    Join Date
    Jan 2008
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    Quote Originally Posted by snowday View Post
    North Shore makes some nice quality rings....running a 12 speed ring on 8000 cranks without issue. Nice guys to talk shop with as well if you have questions.
    And almost half the price of the Wolftooth.

  9. #9
    Join Date
    Dec 2006
    Location
    bestcoast
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    2,126
    I run the the XT Der/Shifter with SRAM casette/chain/ring...it may not be as good a full on shimano, but it works just fine.

  10. #10
    Join Date
    Oct 2017
    Location
    Evergreen Co
    Posts
    969
    I ended up ordering an 8100 Groupset. The 1295 cassette has a 200ish miles on it... so I'll likely try to sell that and recoup some funds.

  11. #11
    Join Date
    Nov 2005
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    Down In A Hole, Up in the Sky
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    You will NOT regret it.

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