Question about the Dunlop Bio M2.0 Specs

Discussion in 'TW Questions/Comments' started by Minion, Feb 11, 2013.

  1. Minion

    Minion Rookie

    Joined:
    Aug 18, 2012
    Messages:
    250
    Hi, i'm considering getting the Dunlop Biomimetic M2.0 as my next racquet, and after looking at the specs on the Dunlop website, i was sold - the specs seems perfect. But on the TW website the specs are different:http://www.tennis-warehouse.com/descpage-DBM2.html and the Dunlop site: http://www.dunlop.com/gb/catalog/2010/tennis/rackets/m2 .

    Now i'm confused:confused: especially with regards to the:

    1) Stiffness Rating. On the Dunlop website it is 65, on TW it is 70? I know TW measures strung racquets and the specs on the Dunlop site is unstrung, but surely that wont affect the stiffness of the frame? 5 points is quite a bit in terms of stiffness.
    2) Swingweight. On the Dunlop site the balance is 315mm, and on the TW site it is 326g.

    I might be missing something about balance and swingweight etc..but here is where i get confused.

    Dunlop BioMax 200G: Strung weight: 332g / 5pts HL = 318 SW - cool, measured myself.
    Head Prestige S: Strung weight: 323g / 3pts HL = 315 SW - cool, measured myself (314 SW when i measured)
    Head YT IG Presige MP: Strung weight: 332g / 3pts HL = 315 SW - cool, measured myself (316 SW when i measured)
    Dunlop Bio M2.0: Strung weight: 332g / 6pts HL = 326 SW - how can this be? From what i can tell, the SW of the M2.0 should be between 313 and 316? Unless i'm not understanding the whole concept of swingweight - in which case i will apologize and go sit in the corner:oops:
     
    #1
  2. Minion

    Minion Rookie

    Joined:
    Aug 18, 2012
    Messages:
    250
    Sorry, i can't edit my posts. I meant to say: Dunlop Bio M2.0: Strung weight: 332g / 6pts HL = 326 SW - how can this be? From what i can tell, the SW of the M2.0 should be between 318 and 320, instead of 313 and 316.
     
    #2
  3. TW Staff

    TW Staff Administrator

    Joined:
    Jan 21, 2004
    Messages:
    24,292
    Location:
    Tennis-Warehouse.com
    Hi Minion,

    I just re-checked it and got the same numbers.

    Some things to keep in mind.

    Swingweight is extremely sensitive to weight distribution. The difference between using a light nylon and heavy poly can be as much as 6 SW points. Also, minor changes in length can affect SW, e.g., a racquet just over 27" will have a higher swing weight than one just under 27". Also, balance is rounded - so the actual balance of this racquet is 5.6HL

    Regardless … your question is how can you have 332/32.4/326

    The answer is: weight distribution. Where weight is added matters. Two racquets can have the same weight and balance but different swingweights depending on the overall weight distribution.

    Let's try an example to illustrate this point by going to TWU's racquet customizer.


    Try entering the following numbers to see how this works.

    In the "What I Have" column put:
    Length: 27"
    Weight: 322
    Balance: 32.4 (6HL)
    Swingweight: 310

    In the "What I Want" Column put:
    Length: 27"
    Weight: 332
    Balance: 32.4
    Swingweight: 318
    *FYI: these are the specs you indicated in your post that the racquet should have.

    Now click "Customize My Racquet"

    You will see a map of where weight must be distributed to get the desired swingweight.

    Now try another experiment that proves you can keep the weight and balance the same but increase the swingweight.

    In the "What I Have" column put:
    Length: 27"
    Weight: 322
    Balance: 32.4 (6HL)
    Swingweight: 310

    In the "What I Want" Column put:
    Length: 27"
    Weight: 332
    Balance: 32.4
    Swingweight: 326

    Click "Customize My Racquet" and you will see the weight distribution that gets you to 326.

    Point is, despite how well quality is controlled, every racquet comes out of the factory with slight spec variations. It only takes a minor redistribution of weight to change the specs. So my advice is to buy light and customize up. Email Paul Reed in our retail department and ask him to customize your racquet to spec. paul@tenniswarehouse.com. He will pull the lightest one, with the lowest swingweight and get you as close as possible.

    Hope this helps!
    Jon
     
    Last edited: Feb 11, 2013
    #3
  4. Minion

    Minion Rookie

    Joined:
    Aug 18, 2012
    Messages:
    250
    Hi Jon, thanks for a great, informative answer, you guys are awesome! I think what i'll do when i order the racquet, is just ask for one that is closest to 332g and 320 SW.

    Thanks again!
     
    #4

Share This Page