Sebenza 31 Lock Rock?!

Discussion in 'Chris Reeve Knives' started by HikingIsLife, Mar 16, 2020.

  1. Honed_Edge


    Feb 5, 2013
    I think that pivot bushings size relates to the stop pin collar as well. It shouldn't matter too much for the rear spacer.
    There are three points of contact between two planes that needs to be maintained basically.
    chaininsomniac likes this.
  2. Sharp & Fiery

    Sharp & Fiery Always Embellish Knifemaker / Craftsman / Service Provider

    May 14, 2012
    Yes you are correct. Ill have to check if the pivot bushing is thicker than the stop pin shoulder thickness first.
  3. nyefmaker

    nyefmaker Gold Member Gold Member

    Sep 29, 2008
    There was obviously issues with the initial 31’s and the lock rock, oops sorry “lock flex” issue.
    Now that they have been out awhile does this issue remain with what is coming out now ( have CRK made any tweaks ) or is it just deemed normal and be hush...???
  4. Easyrider

    Easyrider Gold Member Gold Member

    Jan 31, 2000
    I recently had something brought to my attention and it would be interesting to know is the percentage of knives returned because of issues has increased, decreased or remained the same. 10 retuned knives out of 100 knives produced is a lot different than 10 knives out of 1,000 knives produced.

    I doubt that we will ever know but it would be enlightening.
    Sharp & Fiery likes this.
  5. brownshoe

    brownshoe I support this site with my MIND

    Sep 6, 2002
    No matter what the inudustry, the nonconformity rate is confidential business information as is the type, number, frequency and criteria of QC procedures.
  6. russ25


    Jun 19, 2012
    Yeah it is but would still be very interesting to know.
  7. Chapp


    Mar 28, 2018
    Sorry to bump the thread, but what's the latest update ?

    Could the 31 currently go through a revised manufactured process ? Could that explain it's pretty much sold out everywhere ?
  8. Jsega51

    Jsega51 Gold Member Gold Member

    Feb 11, 2015
    People are now discovering this can happen on the 21’s also! I found this was possible as well through the same ridiculous “test” that created this thread, sort of making it overly dramatic and blown WAY out of proportion.

    Others must be realizing this and not giving a shit about intentionally forcing the blade in a direction it’s not supposed to and buying them.
    sailfish likes this.
  9. Ron Sabbagh

    Ron Sabbagh Platinum Member Platinum Member

    Sep 15, 1999
    Apparently CRK addressed the issue in mid/late 2020 - supposedly a “less experienced” worker on the assembly line was at fault-

    FWIW there has been much less complaining/issues since the fall of 2020.

    some folks are still concerned about the way CRK handled the issue rather than the issue itself. See previous posts in this thread
    cbr1000, BD_01 and Sharp & Fiery like this.
  10. Sharp & Fiery

    Sharp & Fiery Always Embellish Knifemaker / Craftsman / Service Provider

    May 14, 2012
    This is my concern...the way they handled the issues...very different from Chris’s way.
    cbr1000, BD_01, Gizler00 and 3 others like this.
  11. Humint


    Apr 1, 2011
    That doesn’t line up with my experience I just purchased a brand-new small gold double lug 31 from very reputable dealer. Born date of December 19, 2020. Out of the box it had significant “lock rock”/“lock slip”. Needless to say, it was packed up and shipped back to the dealer. This was my second small 31. My first had a May 2020 birthdate and again the issue (sent back as well). I will say the December 31 had much greater flex/rock than the May. I don’t buy the explanation from CRK.

    Oh well, I will just stick to my small Inkosi’s which don’t have and never had the issue.
    BD_01, DanG, Gizler00 and 1 other person like this.
  12. Sluggy


    Aug 29, 2020
    Yes !!! "Assembly Line" , so much for their NASA like tolerence, get over yourself CRK !
  13. Onikudaki

    Onikudaki Gold Member Gold Member

    May 11, 2011
    Received my 31 back yesterday.

    Paperwork that came back with it says that it was inspected, cleaned and tuned; also notes that body screw and body pin were replaced (pivot screw and pin).

    It went straight in the pocket upon arrival. Will update next week or sooner if I notice any loosening of the pivot.
    BD_01 likes this.
  14. BellaBlades

    BellaBlades Gold Member Gold Member

    Jul 12, 2013
    CRK shared that they moved the ceramic ball x amount to fix it. I'm guessing it was tad too close to the pivot.

    I might have to snag a 31 now.
  15. NCHunter78

    NCHunter78 Gold Member Gold Member Basic Member

    Feb 14, 2016
  16. Sharp & Fiery

    Sharp & Fiery Always Embellish Knifemaker / Craftsman / Service Provider

    May 14, 2012
    Got a screenshot or link to where this was shared by CRK?
  17. BellaBlades

    BellaBlades Gold Member Gold Member

    Jul 12, 2013
    No. They told me over the phone.
    Sharp & Fiery likes this.
  18. Sharp & Fiery

    Sharp & Fiery Always Embellish Knifemaker / Craftsman / Service Provider

    May 14, 2012
    Ok, thanks.
  19. Honed_Edge


    Feb 5, 2013
    I've been reading many really old posts lately. You may have seen the eight year old damascus thread I revived.
    Anyways... I was reading some 2014 Spyderco forum and found a LONG post that had an interesting point. I read this quote and instantly thought of this post. Guess somehow I forgot to share it last week, so here it is.

    "So again since the lock connects at the bottom you have a triad or three points to support the blade when opened. The stop, the pivot in the middle and the lock. If the blade connected to the lock more in the middle or at the top of the lock down where the detent is on most then you would experience blade roll. This is when you have vertical type play but what happens is the blade actually rolls on the lock because the lock connects in the wrong place." -from Zenith on
    I think Zenith is sharing info from a knife maker he knows. I have to say, a few others and myself called this a while back some many pages...
    Sharp & Fiery likes this.
  20. Signalprick

    Signalprick Jason Ritchie - Ritchie Handmade Knives Knifemaker / Craftsman / Service Provider

    Apr 3, 2009
    Just got my brand new small 31 pj today with a production date of Feb. 15 2021 and it has significant movement. I've owned many small Inkosi's since 2015 and never had one with this issue. Anyway, if we send them back to CRK for warranty can they fix it? If so how long does it usually take? Thanks

    **Edit and 2 minutes later I found that they must have added this new feature into the double lug versions as well. :(:mad:

    V-1 and BD_01 like this.

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