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Carbon Fiber Sebenzas and Blade Centering

Discussion in 'Chris Reeve Knives' started by Don M, Nov 17, 2017.

  1. Don M

    Don M

    Apr 30, 2000
    I seem to recall reading about blade centering issues with carbon fiber Sebenzas. Can anyone refresh my memory as to the cause? Does this issue also exist with the Inkosi (small)?
  2. Korean Hog

    Korean Hog Gold Member Gold Member

    Mar 12, 2017
    I've been wondering about this too because I'm pretty sure I read the same thing at one point, and it's got me shying away from a C.F. model.

    I don't think it'd bother me too bad if the blade became off centered over time, IF, it was barely noticeable and you'd need a keen eye to even notice, and then you'd have to measure to be sure. If the blade is going to smash against the titanium scale over time, I don't want it.
  3. mt666tm


    Nov 20, 2012
    It's got something to do with the uber tight tolerances and the difference in material properties from the Ti to CF sides. No way to get them as close as if both sides were Ti.

    They may get a C-hair off center over time, but I doubt it'll ever get so far off that the blade would contact the scale or impede function. I would not let this be a deterrent from buying a CF model.
  4. James Longstreet

    James Longstreet

    May 1, 2014
    Exactly. Well summerized! It is also recognized by CRK. They keep explaining that they can possibly adjust this during spa service, but do not guarantee that the effect won't return. It is caused by the different material characteristics of cf and ti.
  5. VolGrad

    VolGrad Gold Member Gold Member

    Oct 25, 2010
    I've owned at least half dozen CF slab CRKs and have never had one off center. I know I have read it is a thing but I have never personally seen it.
  6. DRLyman

    DRLyman Gold Member Gold Member

    Jun 25, 2016
    I own a small Inkosi CF and it’s perfectly centered. I’ve had it for about 12 months and it never had any problems with centering or anything else.
  7. craniotes

    craniotes Gold Member Gold Member

    Oct 29, 2013
    FWIW, I've owned two CF small Sebbies and both have been dead center.

  8. Mrgauth

    Mrgauth Gold Member Gold Member

    Mar 12, 2016
    Good to know as a CF is my next one to get. Now, which one?
  9. Don M

    Don M

    Apr 30, 2000
    Thanks for the input. It appears that while blade centering issues might exist they are the exception rather than the rule.
  10. blanco112

    blanco112 Gold Member Gold Member

    Nov 1, 2016
    That and while CRK will probably acknowledge that slight off centering is within spec, if it was touching the scale or rubbing they'd fix it.
  11. GermanyChris


    Feb 18, 2015
    Here's mine after a year of EDC

    Dangerously likes this.
  12. Ajack60

    Ajack60 Platinum Member Platinum Member

    Apr 21, 2013
    If you're worried about a little (and I mean a little) off centered blade, then get a carbon fiber inlay (BladeHQ exclusive) and have the best of both worlds.
    No need to thank me.:rolleyes:
  13. Ernie1980

    Ernie1980 Gold Member Gold Member

    Apr 19, 2012
    My carbon fiber small 21 has been carried almost daily for nearly 4 years, and is still dead centered! It shares a pocket with another knife and has been sharpened more times than I can count, so it is not just going along for the ride:)
  14. Casinostocks

    Casinostocks Factotum Platinum Member

    Mar 20, 2016
    I had owned one which I had bought on the exchange. It was disclosed as off-center but the seller "forgot" to disclose that it was because he had disassembled and in the assembly process, a washer (newer perforated type) was pinched. Obviously I found out when I had opened the knife and would not have been cool to dispute over a few BS $s, so off to Boise it went and about 8 weeks later it came back dead centered with new washers. I have since let go of that knife but despite the fact that CRK does state that because of the weight differences between the CF scales and the Ti scale, there may be an issue ion the long term for the blade to shift off center toward the lighter CF scale, my former's knife's unfortunate off centering was not because of that potential issue. Hope that the helps.
  15. Thin-Slice


    Jul 4, 2016
    I have owned 2 CF version both large, Clip Point and Insingo and both were dead on center. But as mentioned above the difference in materials is the most likely culprit.
  16. Mo2


    Apr 8, 2016
    Mine was dead center and now Its not. It's not rubbing yet but pivot is tight so it's strange AF. But as mentioned above it happens. Large sebenza 21 cf.
  17. Thin-Slice


    Jul 4, 2016
    Maybe one possible solution when tightening the screws do it on the Ti side???
  18. Driften

    Driften Gold Member Gold Member

    Oct 21, 2010
    No problem with my small CF sebenza 21 after about a year.
  19. KyleNV

    KyleNV Gold Member Gold Member

    Nov 5, 2017
    I bought a used Knife Art Edition, Large 21, it was a hair off, close on the Carbon fiber side. It is still flawless but it drove me crazy so I light micro'polished the Titanium Side bearing and it creat just enough to get it almost Dead Center, It Opens and closes amazing and I just love Carbon Fiber, All my motorcycles for the last 20plus years get a new Carbon Fiber exhaust the moment I get them home, so far almost all my knives are Titanium with a "show side" in carbon fiber. Love It!
  20. PiterM

    PiterM Gold Member Gold Member

    Mar 27, 2000
    Just checked my Inkosi... dead centered!

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