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View Full Version : Tried Technifibre Biophase arm hurts why?


rocky b
08-20-2007, 12:18 PM
I have a very tender elbow i use the yonex 880 soft and my elbow never hurts tried X1 biphase now my elbow is killing me. I thought this is a very soft string am i wrong. I want to switch to a string that gives better spin yet the same comfort as the yonex.

NoBadMojo
08-20-2007, 01:00 PM
It would be helpful if you told us what racquet you are using and also the string tension
BiPhase isnt a soft string..it can play boardy especially at higher tensions.
Try a gut or gut hybrid for spin and comfort as you can. The difference in spin rates amongst the various strings isnt all that great....spin is about technique

gjoc
08-20-2007, 01:28 PM
I have a very tender elbow i use the yonex 880 soft and my elbow never hurts tried X1 biphase now my elbow is killing me. I thought this is a very soft string am i wrong. I want to switch to a string that gives better spin yet the same comfort as the yonex.

The string you switched to is a bit stiffer (less arm-friendly) than the one you normally use (192 vs. 188).

Try any of these instead, all of which are substantially softer (more arm friendly) than your regular string (data from USRSA lab testing (http://www.racquetsportsindustry.com/articles/2006/09/string_selector_map_2006.html)):


__COMPANY______________STRING_____________________ ___MATERIAL_________GAUGE____STIFFNESS

__Gamma_______Live Wire Professional 18__________Nylon / Zyex__________1.22_______144
__Ashaway_____Dynamite 17________________________Zyex / Nylon__________1.24_______147
__Iso-Speed___Professional 17____________________Polyolefin____________1.27__ _____152
__Head________Protector 16 main (RIP Protect)____Polyolefin / Nylon____1.32_______163
__Ashaway_____Dynamite WB 16_____________________Zyex / Nylon__________1.37_______165
__Iso-Speed___Platinum 16 (main)_________________Polyolefin / Nylon____1.32_______165
__Wilson______Reaction 18________________________Nylon_________________1. 2________165
__Gamma_______Live Wire Professional 17__________Nylon / Zyex__________1.29_______168
__Forten______Ti-Blend Cross 16__________________Nylon_________________1.32____ ___171
__Gamma_______Live Wire Professional 16__________Nylon / Zyex__________1.33_______174
__Alpha_______Axiom 16___________________________Nylon________________ _1.32_______175
__Gamma_______Prodigy 17_________________________Nylon_________________1 .25_______175
__Pacific_____Power Twist 16L____________________Nylon_________________1.29_ ______175
__Prince______Premier w/softflex 17______________Nylon_________________1.25_______1 75
__Wilson______Reaction 17________________________Nylon_________________1. 27_______175
__Head________Synthetic Gut PPS 18_______________Nylon_________________1.16_______ 176
__Prince______Premier w/Softflex 16______________Nylon_________________1.31_______1 76
__Fischer_____Comfort 16_________________________Nylon_________________1 .33_______177
__Head________IntelliTour 17 main (RIP Tour)_____Nylon / Polyolefin____1.3________177
__Head________IntelliString 16L main (RIP Power)_Nylon / Polyolefin____1.32_______178
__Head________RIP Control 17_____________________Nylon / Polyolefin____1.28_______178
__Pacific_____Power Twist 16_____________________Nylon_________________1.35_ ______179
__Head________FiberGel Power 17__________________Nylon_________________1.26____ ___180
__Head________Perfect Power 16___________________Nylon_________________1.35___ ____180
__Iso-Speed___Energetic Plus 16__________________Nylon / Polyolefin____1.32_______180



Personally, I like the Gamma Professional, but I havenít tried all of them.

I think most of them are decent strings.

They all have their own plusses and minuses.

rocky b
08-20-2007, 01:34 PM
Its weird I used wilson sensation which is much stiffer on that list and my arm was fine yet this hurt. I use the PK 7g at 67 pounds which is high but did not have problems with the yonex or wilson.

gjoc
08-20-2007, 02:20 PM
Its weird I used wilson sensation which is much stiffer on that list and my arm was fine yet this hurt. I use the PK 7g at 67 pounds which is high but did not have problems with the yonex or wilson.

The data is from lab testing, so itís not necessarily that exact.

They try to set up the testing to reflect the real world, but different playing styles and so forth can change the answers/results.

Thatís why I cut off the list I quoted above at 180, even though yours measured 188--to try to leave some margin for error and give you a list that would all be okay for you.

If you have no trouble with the Yonex or the Wilson, then you should have no trouble with any of the ones on that list either.

Thatís not to say, though, that there arenít still others out there that would also give you no arm problems.

You can never know for sure with any string until you try it for yourself.

NoBadMojo
08-20-2007, 02:32 PM
The data is from lab testing, so itís not necessarily that exact.

They try to set up the testing to reflect the real world, but different playing styles and so forth can change the answers/results.

Thatís why I cut off the list I quoted above at 180, even though yours measured 188--to try to leave some margin for error and give you a list that would all be okay for you.

If you have no trouble with the Yonex or the Wilson, then you should have no trouble with any of the ones on that list either.

Thatís not to say, though, that there arenít still others out there that would also give you no arm problems.

You can never know for sure with any string until you try it for yourself.

As I understand it, they measure string stiffness by hitting a piece of string (cant remember how long..maybe 10 inches or so) with a hammer. You all can decide if that is 'real world' or not...i dont think it is.

To the OP. BiPhase at 67 would be very harsh..i can see how that would hurt your arm. Suggest you go back to what you were using knowing that spin production is 95% <or so> techinque

rocky b
08-20-2007, 02:44 PM
I serve with the yonex and my kick serve has no hops with the Biophase it was jumping so its not my swing its the string.

scotus
08-20-2007, 03:28 PM
I serve with the yonex and my kick serve has no hops with the Biophase it was jumping so its not my swing its the string.

Performance comes with a price, I guess.

Have you tried Iso-Speed Professional? I use it in a hybrid with Klip Legend gut, but it feels softer than full gut.

Valjean
08-20-2007, 03:56 PM
Why not try Tecnifibre's Multifeel now.

slicefox
08-20-2007, 04:30 PM
Working out your arm will help, I will guarantee that. Try doing some bicep curls with dumbbells. Results will soon follow.

rocky b
08-20-2007, 04:41 PM
Why not try Tecnifibre's Multifeel now.

is that alot softer how is the spin and have you ever used the 515 and how do they compare

Court_Jester
08-20-2007, 06:35 PM
The X-1 Biphase feels stiff and boardy for the first hour or so but after that, it feels awesome. Just do some light hitting to break the string in.

JavierLW
08-20-2007, 06:43 PM
The X-1 Biphase feels stiff and boardy for the first hour or so but after that, it feels awesome. Just do some light hitting to break the string in.

I know this has been covered somewhere before, but does prestretching aliviate this at all?

Valjean
08-20-2007, 07:11 PM
is that alot softer how is the spin and have you ever used the 515 and how do they compare
It is softer, and since it has a small center core, Multifeel's still stiff enough to help with spin. It is firmer than 515, yet is still soft enough on impact to make a comparison valid. Prince's Premier with Softflex is an "update" of 515 with even better tension retention, if that's of any help to you. Here is the playtest: http://www.tennis-warehouse.com/Reviews/PSF16/PSF16Review.html. With elbow pain already, maybe you should go all the way and install natural gut, though. If fact, if your elbow's killing you now, don't you think you might need some time off?

Steve Huff
08-20-2007, 07:16 PM
Pre stretching would probably worsen it, as it wouldn't loosen up quite as fast (theoretically, anyway). I think one of the softest feeling, good playing synthetics is Alpha Sphere. If you don't want to spend that much, try the Alpha Prodigy (in Red), which seems like a different string than the Prodigy in natural (to me anyway).

JavierLW
08-20-2007, 09:11 PM
Pre stretching would probably worsen it, as it wouldn't loosen up quite as fast (theoretically, anyway). I think one of the softest feeling, good playing synthetics is Alpha Sphere. If you don't want to spend that much, try the Alpha Prodigy (in Red), which seems like a different string than the Prodigy in natural (to me anyway).

Thanks.

Just so I understand this right, you're saying it will worsen it for stiffness sake, right?

Is there anything wrong with prestretching it in general? I have a set I havent had strung yet, and someone who strings his own racquets and is a USRSA suggested having it pre-stretched.

GS
08-21-2007, 09:12 AM
Yes, just go with the Tecnifibre 515! It's the only soft string that saves my arm. The NRG2 is a disappointment after a few days, and the X-1 Biphase is not that soft. The 515 saves me from buying natural gut and going broke. 515 does need to be strung high to avoid a mushy feel.

jackcrawford
08-21-2007, 12:03 PM
To the OP. BiPhase at 67 would be very harsh
So true. I love BiPhase, have it at 56/54 in my DNX V1 Mp, but at 67 it would be a 2 by 4. Just drop the tension, or if you want to stay with 67 # try Klip Excellerator.