User Tag List

Results 1 to 12 of 12
  1. #1
    Administrator kwun's Avatar
    Join Date
    Apr 2002
    Location
    Santa Clara, California, United States
    Posts
    36,148
    Mentioned
    55 Post(s)
    Tagged
    2 Thread(s)

    Default SOTX stiffness scale

    does anyone have any information on how SOTX measures and rate their rackets?

    i first learned of the SOTX stiffness scale from the Panda website ( www.dcbadminton.net ) and am curious how it is actually performed.

    Panda??

  2. #2
    Regular Member demolidor's Avatar
    Join Date
    Jan 2003
    Location
    @Hollanti
    Posts
    11,835
    Mentioned
    23 Post(s)
    Tagged
    0 Thread(s)

    Default

    SOTX Badminton Stiffness -
    measured in degrees of movement of the shaft when a
    20kg weight is placed on the T-joint of the racket :

    8.0 extra stiff
    8.5 stiff
    9.0 medium stiff
    9.5 flexible


    http://anonym.to/?http://www.ibuyspo...infosheet.html

    Pretty sure there should be a thread around here as well ...

  3. #3
    Administrator kwun's Avatar
    Join Date
    Apr 2002
    Location
    Santa Clara, California, United States
    Posts
    36,148
    Mentioned
    55 Post(s)
    Tagged
    2 Thread(s)

    Default

    SOTX Badminton Stiffness -
    measured in degrees of movement of the shaft when a
    20kg weight is placed on the T-joint of the racket :

    8.0 extra stiff
    8.5 stiff
    9.0 medium stiff
    9.5 flexible
    20kg!!

    that's 44lbs. that's a lot of weight. i don't expect a lot of cheaper rackets to survive that.

    or does it mean 2kg?

  4. #4
    Regular Member
    Join Date
    Jul 2007
    Location
    Ottawa, ON
    Posts
    819
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by kwun View Post
    20kg!!

    that's 44lbs. that's a lot of weight. i don't expect a lot of cheaper rackets to survive that.

    or does it mean 2kg?
    Must be typo O__O I don't ever believe ANY of my SOTX rackets can stand 44lbs of pull...I've had a couple of them break on me not having anything close to that...

  5. #5
    Regular Member
    Join Date
    Apr 2007
    Location
    United States
    Posts
    1,271
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    its not tension, its a weight they apply to the shaft or something so it bends. saw a picture once, its literally as good as a thousand words.

  6. #6
    Regular Member
    Join Date
    Jul 2007
    Location
    Ottawa, ON
    Posts
    819
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by jymbalaya View Post
    its not tension, its a weight they apply to the shaft or something so it bends. saw a picture once, its literally as good as a thousand words.
    I didn't mean tension...I meant I pulled my racket to test the stiffness and it broke..don't think I pulled close to 44lbs...xD...if you happen to find that picture...again, would be worth 1000 words xD...

  7. #7
    Regular Member what07's Avatar
    Join Date
    Jan 2009
    Location
    Toronto
    Posts
    914
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by demolidor View Post
    SOTX Badminton Stiffness -
    measured in degrees of movement of the shaft when a
    20kg weight is placed on the T-joint of the racket :

    8.0 extra stiff
    8.5 stiff
    9.0 medium stiff
    9.5 flexible


    http://anonym.to/?http://www.ibuyspo...infosheet.html

    Pretty sure there should be a thread around here as well ...
    Hmmm I have a 2 10kg weights here, anyone wanna give me there racket?

  8. #8
    Regular Member
    Join Date
    Apr 2007
    Location
    United States
    Posts
    1,271
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    http://www.ibuysports.com/badmintoninfosheet.html

    no picture, but a few good words.

  9. #9
    Regular Member
    Join Date
    Aug 2008
    Location
    Vietnam
    Posts
    208
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Just a note of interest...stiffness is measured differently by some mfg....I am checking with sotx to find out for sure how they do it..
    Some use a machine that applies pressure to the middle of the shaft which is supported on both ends and gives a digital read out of the stiffness....
    This is done before shaft is attached to the head...
    The composition of the shaft is different (sometimes) from the frame head...
    This different comp makes for different amount of stiffness....difficult to get high flex from 50 Tonne carbon....

  10. #10
    Regular Member
    Join Date
    Feb 2007
    Location
    Melbourne, Australia
    Posts
    3,658
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    From what i know SOTX and Apacs apply a 20kg weight on the shaft/head joint and measure the angle of shaft bend. The larger the angle the higher the flex rating.

  11. #11
    Regular Member what07's Avatar
    Join Date
    Jan 2009
    Location
    Toronto
    Posts
    914
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    http://www.apacscanada.com/-i-7.html


    Shaft Flexibility ( Flex )

    Apacs measuring FLEX of a racket by 2 supports at the handle and T-joint. Applying a 20Kg weight at the middle of the shaft. The bent lenght of the shaft will be the index of FLEX. Therefore, the bigger the number, more flexible will be the shaft. In general, number will between 6.5.0mm - 9.5mm.

  12. #12
    Regular Member
    Join Date
    May 2010
    Location
    court
    Posts
    642
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    My one and only WOVEN 16 (now sold) was strung at 34/35 and it did held with no problem as the claim says. I think it is in the stiffness category of an ArcZS imo.

Similar Threads

  1. Klipper M140 Scale, accurate?
    By Shoutsu in forum Badminton Stringing Techniques & Tools
    Replies: 7
    : 01-04-2013, 01:38 PM
  2. Calibrating Manual Crank With Fish Scale
    By Openg in forum Badminton Stringing Techniques & Tools
    Replies: 11
    : 11-16-2010, 07:09 AM
  3. NS8k and arc10 on the sotx stiffness chart
    By shot3gun in forum Badminton Rackets / Equipment
    Replies: 0
    : 12-08-2009, 08:15 PM
  4. Replies: 15
    : 05-17-2009, 12:36 AM
  5. SOTX Woven 5a vs Woven 8/8a (stiffness)
    By krisyay in forum Badminton Rackets / Equipment
    Replies: 18
    : 08-30-2007, 07:04 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •