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Thread: 2003 Yonex rackets measurements
03-09-2004, 07:09 PM #101
Somone should mail cooler every new racket to test
03-10-2004, 07:03 PM #102
Re: Stiffness versus TimeOriginally posted by cooler
As Part Four of the racket measurement thread, i have look into how racket stiffness hold out over time. I think most of us don't give much thought about this topic when comparing rackets from various sources like friends, stores or their own. Well, the result of my test would change that. I haven't post it before because i lack the racket samples to make comparision at single point in time. The result shown below are from tests conducted consectively with same measuring devices.
I don't say the result applies to all badminton rackets but if MP99 with H.M. graphite, Ultimum Ti frame and shaft does, i'm sure the other rackets of 'lesser' quality should suffer more stiffness degradation.
The reference racket is a brand new cab20MS with relative stiffness = 0
03-10-2004, 07:48 PM #103
Originally posted by kwun
cooler. any chance of getting your hands on a cab30ms to add to your data set?
03-10-2004, 10:19 PM #104
Re: Re: Stiffness versus TimeOriginally posted by Winex West Can
Some of the articles that I read in raquettech.com seems to suggest that the reason for the decrease in stiffness is dued to microcracks forming within the racquet due to stringing and restringing, etc. It would be interesting to compare a new racquet to one (same model) that was manufactured a while ago but never used. This is still not completely accurate too as materials used could be different (i.e. not from the same batch).
03-10-2004, 11:31 PM #105
Haven't been here in a while and was going to e mail you directly but thought for the benfit of the BF'ers I would post here. I have all the new raquets in( At 800, 300, cab 30 etc.) and will get the new frames to you for your measurement and demo use as soon as I can. I have two of everything coming including the new shoes. Delivery will be tommorrow. Call me on my cell so we can get together. I will need to get the discontinued models from you to sell. Thanks for your help this season. Keep the faith brother!
03-10-2004, 11:33 PM #106
By request (winex west can), this post form part five of the 2003 yonex racket measurements. He wanted to know how new racket stiffness varies among the same model. Although i admit i only have 2 samples of each model to examine, the results are consistent and inline of what they should be. These data are not made up or measure just now. I had collected these data since day 1 when all the rackets were measured, eliminating the possibility of change of ambience condition, equipment fluctuation and of course gravitational constant
This and previous stiffness results tend to say yonex rackets have stable performance parameters between different weight class, grip size, and within product model. (I'm not saying other brands don't). It's just that from only 2 samples of each model, mp99, mp33, and cab23, the stiffness trends fall within range of what it is expected. Deflection measurements are within +/- 0.5 mm
(eggroll's mp33 can be considered brand new as i doubt people want to demo a mp33 when eggroll have mp100/99/88/77, AT500/700 in his bag)
Last edited by cooler; 03-10-2004 at 11:42 PM.
04-12-2004, 12:57 AM #107
Cooler have u ever tried at700 ?
tell meh wht u think about at700
cuz i just bought one
04-12-2004, 01:15 AM #108
Originally Posted by AZNJORDAN69
04-30-2004, 12:19 PM #109
Any luck on testing Ti10 ? It will be good if we can have some results.
04-30-2004, 05:50 PM #110
Originally Posted by ants
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