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05-18-2011, 11:03 PM #1
FAQ: Can I string outside of the recommended tension of 24lbs, 28lbs or above 30lbs?
Can I string outside of the recommended tension of 24lbs, 28lbs, above 30lbs or anything in between? What is "recommendation" anyway?
All modern badminton racquets these days are recommended to be strung at certain string tensions by their manufacturers. These tension ranges can be from 18lbs to 22lbs or 18lbs to 24lbs or 20lbs to 26lbs etc. Some racquets are simply marked as "warranted maximum tension of 36lbs".
First of all, these recommended tension are largely unrelated to the playability of the racquet. By recommendation, the actual meaning is expressively:
"This manufacturer recommends the stringer to do this racquet at [for e.g. 18lbs to 24lbs], just in case you [the stringer] break it and provided that you use our recommended string pattern, then you are liable to claim for warranty replacement. Any higher than our maximum and you break it, then it is your own problem as you clearly do not have the technique or equipment, yet you do it (why should we have mercy on you [the stringer]?)."
In other words, the recommended string tension especially the maximum is more or less a safety range for inexperienced stringers to apply to as the stringing process itself applies one of the heaviest stresses to the badminton racquet compared to normal play. The other heaviest stress is during one string breakage and your racquet frame is distorted from the uneveness in the string bed. On the other hand, a lousy stringer IS ABLE TO BREAK your racquet with a mistake during stringing at even the lowly tensions of 21lbs or way below the maximum recommended.
Once you are talking about experienced professional stringers such as Alan Kakinami (who is a member of this forum), the recommended tension ranges do not apply any longer. An experienced stringer has the technique to string your racquet at very high tensions as they are able to minimise the stresses applied to the badminton racquet frame during stringing more efficiently than your local stringer (especially that one who insists that you ask him to string below 24lbs because "it is what Yonex recommends"). A lousy stringer is also able to break your racquet from multiple stringing if he makes a minor mistake everytime he strings your racquet as the micro structural damage will compound after time and on the final stringing your racquet will finally give up and break. Badminton racquets do not heal themselves unlike human bones over time.
Technically speaking, ALL graphite racquets of today EVEN THE COUNTERFEIT ONES are able to be strung above 30lbs in tension. This depends entirely on the technique of the stringer who is doing the racquet at the 30+lbs tension.
So what happens if I play at high tensions?
You need good technique to play at higher tensions. "High tension" is a subjective term and one player's normal tension could mean high tension for another player. There is no definable high tension range which can be applied to everyone. You simply can not say "I know this professonal player who uses so so tension and because of that I must string lower". It is almost akin to saying "my parents earn this much of money per month, so I should not earn more than them with my new job". Seriously, enough said.
But when you play with the racquet and if only if you mishit the shuttle (hitting the frame etc.), the structural integrity of the frame will be subjected to the stress test and you will know if the racquet is manufactured good enough to withstand the stress and resist breaking. This is also what separates the good branded racquets from the cheap branded racquets. Although if you don't mishit AT ALL, the racquet will NOT BREAK AT ALL. A very bad mishit at a bad angle CAN STILL CRACK a racquet strung at low tensions (racquets strung at higher tensions will break), nonetheless.
And don't EVEN THINK ABOUT CLASHING your racquet. Even if you are strung at 18lbs within your "maximum warranted tension" of 24lbs, a clash CAN STILL KILL YOUR RACQUET if you are unlucky and NO RACQUET MANUFACTURER will replace your racquet for you even if it is still within the warranty period. It is easy to tell if it a racquet broke from a clash so Yonex or most manufacturers WILL NOT HAVE MERCY on you.
You should always play at your comfortable tension and not be tied down to the "recommended" tensions or what other people use. Your hitting technique is also important in playing properly and preventing yourself from breaking your racquets.
In conclusion, play smart, play properly. Don't hurt yourself or your racquets.
extremenanopowe liked this post
05-19-2011, 05:36 AM #2
stickied!!! thanks for writing this.
05-20-2011, 12:11 AM #3
Cliff notes version:
-All modern graphite rackets can be strung up to ~30lbs if strung by an experience stringer
-Any racket strung by an inexperience stringer is at risk
-If you mishit at any tension, you can damage your frame
-Clashing is bad
-Warranties are only valid if strung within the recommended tension range
-Play with a tension that is appropriate for your level
-Dont abuse your racket un-necessarily
Charles Hetu liked this post
07-09-2011, 01:32 AM #4
My voltric 7 recommended tension is 22-24. What if I string it to 25 lbs?
07-09-2011, 02:56 AM #5
07-09-2011, 04:07 AM #6
sorry dude dont be so angry.i'm just asking if adding 1 lbs will have big difference..
07-09-2011, 04:53 AM #7
07-09-2011, 05:02 AM #8
07-09-2011, 06:15 AM #9
One way to "bypass" this is to write a "safe" tension on the form then liaise with the stringer and ask him to add a few more pounds or even a totally different tension during stringing. I can not verify if this is indeed possible however
07-09-2011, 06:40 AM #10
Yonex USA requests that all warranty claims must have string on the racket. so they must have some way to approximate the tension. probably not the most accurate but if it is way over say 28+ lbs they should be able to tell.
07-10-2011, 09:09 AM #11
Professional players use tension above 30lbs right?are their racket specially made or they just 'can get a new racket from sponsor' if broken?
07-10-2011, 09:46 AM #12
Of course the professional players that are sponsored by the brands will have all their broken racquets replaced.
07-11-2011, 02:30 AM #13
07-15-2011, 08:26 AM #14
Ok ok,thanks for info....
07-15-2011, 10:47 AM #15
OK, let's make it official. You can string your racquet 10% above recommended tension and get away with warranty issue if strung by reputable stringer/Evil Empire dealer. This only apply only to the Evil Empire. Why?
1) Evil Empire can only tell approximate tension. ie. between 18~24, 24~27 and 27+. You can do so by measure length of word "Yonex BG65" on the string bed.
2) Given that most of stringer/pro shop uses crank machine, they are about 1~2 lb off the tension compare to constant pull. Often time, electric machine are set with 10% pre stretching. So you are safe to go 10% higher and not too many will notice.
3) Given we know that BG65 will drop between 5~10% after 24 hr depend on stringer's procedure. Can you really tell what the starting tension is after 2 days of playing?
Please note, the tension range is for most warranty purpose. Playability is 2nd. Warranty issue with Evil Empire depend on how much business your dealer does the dirty work for the Dr. Evil
04-13-2012, 03:04 PM #16
Hello, Is Nanospeed 2000 a "modern racket"
04-19-2012, 03:30 PM #17
what is the different analog and digital string tension?
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