people with Kevlar strings

graycrait

Hall of Fame
where did you get that and is it attached to the deck or something?
Harbor Freight. The bottom curves inward like a hook so it fits over the board snug and secure. https://www.harborfreight.com/manual-strap-winch-95541.html

Go to #43 of this thread: https://tt.tennis-warehouse.com/index.php?threads/deep-pre-stretching-hint-i-use-gasoline.601336/

I found it interesting how little Ash Kev stretched. Not that I was expecting much but it is indicative that if it isn't prestretched that the slightest bad knot tying, no 10-20% stretch on last mains, anything...will precipitate a large tension drop off the stringer or in the first 24hrs as tension slowly "compacts" that braided Ash Kev. Then there is that first hour or two of hitting that really "seats" the braided Ash Kev. I think maximum prestretch on Ash Kev good, but Zyex, to each their own.

I'm running fullbed Zyex, no prestretch on a number of rackets and like it. Next is Zyex/Origin, Origin/Origin and maybe Kevlar/Origin.
 

li0scc0

Hall of Fame
Others have stated this, but change racquets. I'm getting about the same spin from my Dunlop Aerogel 200 18x20 .. And string lasts far longer vs an open pattern.
 
I'm enjoying blast from the past with my tight Problend stringjob in open-pattern stiff leaded-up OS frame for my competitive usta mixed seasons this year. Volley accuracy is unmatched by anything else, and my mixed game is all about controlling the action from the net. For singles, I prefer to cross ashaway 16g mains with ZX Pro crosses to get some spin.
 

herculesxt

New User
I´m using a breaking string machine, a Wilson Ultra XP 100s, so kevlar hybrid is the last resort before giving up on the racket.
I know kevlar will last a while on the mains, but what about the crosses? With the Ashaway Crossfire ZX 17whats the durability i can expect for the crosses?

Thank´s
 

J011yroger

Talk Tennis Guru
I´m using a breaking string machine, a Wilson Ultra XP 100s, so kevlar hybrid is the last resort before giving up on the racket.
I know kevlar will last a while on the mains, but what about the crosses? With the Ashaway Crossfire ZX 17whats the durability i can expect for the crosses?

Thank´s
What are you using now and how long is it lasting?

J
 

teachingprotx

Hall of Fame
Yeah man ! I like problend personally but all Kevlar is awesome .. Kevlar is like fine wine it gets better with age . And it’s totally and completely recyclable . I can make my one set of problend go two to 3 times on my rackets before a total replacement is necessary .im not doing this for cost effectiveness i am doing it cause it feels better after it’s broken in ,to me !
 

2nd Serve Ace

Hall of Fame
Got it;)
I´l have to try it, Kevlar and a tough poly might kill may arm. That will be the excuse i need to change racquet:)
I used poly crosses with Ash Kev for over a year, and had to change it out due to shoulder tendinitis.

Would really recommend the monogut Zx with a big prestretch as the better option.
The 1.22 is super durable. Black ZX produces off the charts spin.

Tension differentials remain a must with either cross string, ime.

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herculesxt

New User
Super noob question, on the Ashaway Crossfire Zx Hybris, which one of the strings is the kevlar? The yellow or neutral?
Sorry, many thanks
 

graycrait

Hall of Fame
Sometimes Ash Kev can be a booger to string due to how limp it is and how fluffy the end can become. I dip about 4cm/1.4" of each end after snipping the ends at an angle to make a point. Immediately after dipping the ends I take a scrap piece of plastic and quickly squeeze with a squeezing sweeping motion then hang the ends so they don't touch anything for a couple of minutes. This is my favorite super glue for this application: http://bsi-inc.com/hobby/insta_cure.html
 
Sometimes Ash Kev can be a booger to string due to how limp it is and how fluffy the end can become. I dip about 4cm/1.4" of each end after snipping the ends at an angle to make a point. Immediately after dipping the ends I take a scrap piece of plastic and quickly squeeze with a squeezing sweeping motion then hang the ends so they don't touch anything for a couple of minutes. This is my favorite super glue for this application: http://bsi-inc.com/hobby/insta_cure.html
I still pre-weave the mains while leaning back on the couch (before putting racquet on stringer) whenever I use kevlar mains.

I can get away with this cheat step because Kevlar is unique in that it can slide around corners without damage and can transmit tension around corners better with a pulley effect. I then ratchet the tension up in a 2 or 3 steps (to not have too much tension on one side ) to reach my full tension, walking my fingers across the stringbed each time to bleed off slack when the dropweight is engaged.
 

skydog

Semi-Pro
And the crosses, on a hybrid setup, wont the kevlar chew trough them?
Not if you use Monogut ZX.

I have been on a bit of a durability test with 3 of my current racquets strung with Ash Kev 16g and Monogut ZX Black 16g @ 64 lbs / 52 lbs. The racquets are Prince Tour 98 ESP’s with a string chewing 16 x 16 pattern all modified up to 380g / 10 pts HL. The three racquets were last strung in Oct 2017, Feb 2018, and Mar 2018. All 3 racquets have at least 75 hours of play on them and at least one of them has over 100 hours on it (wish I documented this better, but stopped keeping track after each reached 50 hours of play). My goal after 50 hours was to play one long enough to break a string, it still has not happened. Around the 40 to 50 hour mark there were visible signs of the Monogut ZX sawing into the Kevlar which still was still holding on 50 hours later. I just restrung the highest houred stick on Friday and the Kevlar was sawed through about 40 to 50 % through and still playable. The Monogut ZX showed no visible signs of damage.

Monogut ZX requires some patience and care while stringing it as a small nick or some over zealousness on knot tightened can severely shorten its lifespan. Once properly installed, it will last an extremely long time.

About the only minor negative on the Ashaway Kevlar / Monogut ZX hybrid is that the Kevlar will sometimes be reluctant to snap back efficiently after some wear on the stringbed, but it is still better than other hybrids I have tried in that department. The next experiment is increasing the tension on the Kevlar mains to see if I can eliminate it. Trying 66 / 52 lbs now.
 

2ndServe

Hall of Fame
My kevlar feels best after about 3 weeks, some times I'll just cut out the cross and just string the cross with the old ass kevlar in it (at this point the kevlar feels about 25lbs (pull this number out of thin air but it's super loose and I can move it and touch the adjacent mains with no pressure at all).

Has anyone tried kevlar at 30lbs new? I also started stringing the top couple of cross strings lower tension, racket is super plush where it used to be jarring on hits at the top? So everyone likes the old ashaway better than the ashaway w/ zyex coating?

I can seem to have really loose kevlar with 3 week old poly cross and not have it catapult a lot, while others are suggesting a tight kevlar and loose cross.
 
Not if you use Monogut ZX.

I have been on a bit of a durability test with 3 of my current racquets strung with Ash Kev 16g and Monogut ZX Black 16g @ 64 lbs / 52 lbs. The racquets are Prince Tour 98 ESP’s with a string chewing 16 x 16 pattern all modified up to 380g / 10 pts HL. The three racquets were last strung in Oct 2017, Feb 2018, and Mar 2018. All 3 racquets have at least 75 hours of play on them and at least one of them has over 100 hours on it (wish I documented this better, but stopped keeping track after each reached 50 hours of play). My goal after 50 hours was to play one long enough to break a string, it still has not happened. Around the 40 to 50 hour mark there were visible signs of the Monogut ZX sawing into the Kevlar which still was still holding on 50 hours later. I just restrung the highest houred stick on Friday and the Kevlar was sawed through about 40 to 50 % through and still playable. The Monogut ZX showed no visible signs of damage.

Monogut ZX requires some patience and care while stringing it as a small nick or some over zealousness on knot tightened can severely shorten its lifespan. Once properly installed, it will last an extremely long time.

About the only minor negative on the Ashaway Kevlar / Monogut ZX hybrid is that the Kevlar will sometimes be reluctant to snap back efficiently after some wear on the stringbed, but it is still better than other hybrids I have tried in that department. The next experiment is increasing the tension on the Kevlar mains to see if I can eliminate it. Trying 66 / 52 lbs now.
I re-use the monogut zx after it has been used as cross with kevlar mains. It's precious stuff so would be a waste not to. Even on the second or third use (several hundred hours total), the kevlar still saws through first.

I have only broke Monogut ZX black 17g once as a cross while playing, and I am convinced that it was because I probably nicked it badly while stringing.
 

skydog

Semi-Pro
I re-use the monogut zx after it has been used as cross with kevlar mains. It's precious stuff so would be a waste not to. Even on the second or third use (several hundred hours total), the kevlar still saws through first.

I have only broke Monogut ZX black 17g once as a cross while playing, and I am convinced that it was because I probably nicked it badly while stringing.
I have only broken Monogut ZX Black 16g twice, both times on the same racquet. Found a sharp edge in one of the grommets which explained why that string had broken there. The other one was a string I am pretty sure I nicked during the stringing process. Since I smoothed out the grommet, no breakage on the Monogut ZX.

It is very precious stuff.
 

2nd Serve Ace

Hall of Fame
My kevlar feels best after about 3 weeks, some times I'll just cut out the cross and just string the cross with the old ass kevlar in it (at this point the kevlar feels about 25lbs (pull this number out of thin air but it's super loose and I can move it and touch the adjacent mains with no pressure at all).

Has anyone tried kevlar at 30lbs new? I also started stringing the top couple of cross strings lower tension, racket is super plush where it used to be jarring on hits at the top? So everyone likes the old ashaway better than the ashaway w/ zyex coating?

I can seem to have really loose kevlar with 3 week old poly cross and not have it catapult a lot, while others are suggesting a tight kevlar and loose cross.
I do at least 2 cross restrings on my Kev mains, and your right: when the old cross is out the mains feel like they were hand pulled, they are so loose! It would have to be 9 or 10 inches the mains have stretched.

I take it to mean that the Kev is now thoroughly stretched to its limit. (This is the result of the braided fibers loosening up and flattening out, not really the Kevlar stretching)

I've never been able to do a prestretch initially that can achieve this amount of elongation. The best method I've come up with is to leave the mains only in the racquet mounted on the stringer overnight. Seen some more elaborate systems by trav and grey, but I can tell that it needs to be a long duration stretch on the Kev to have much effect.

If you had a way of doing this with new Ash Kev, I think it could go in at 30 lbs.

Postscript: I also go lighter on the top crosses to reduce that brassy "end hit."



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2ndServe

Hall of Fame
Same I cut out the crosses because the old worn kevlar feels much better. My next question is the starting cross knots tied to the mains are a pain to unknot so I can string the cross. Are you using a different knot to make the untie easier?
 
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esgee48

Legend
You need to plan if you wish to reuse the mains. You can tie off the crosses on cross strings. Or you can use a finishing knot [DHH] for both ends of the cross. You will not damage the Kevlar mains. There are existing threads on doing crosses without using a starting knot.

@Shroud Hope you are doing well back East and that the current stormy weather does not affect you personally.
 

Shroud

G.O.A.T.
You need to plan if you wish to reuse the mains. You can tie off the crosses on cross strings. Or you can use a finishing knot [DHH] for both ends of the cross. You will not damage the Kevlar mains. There are existing threads on doing crosses without using a starting knot.

@Shroud Hope you are doing well back East and that the current stormy weather does not affect you personally.
Thanks dude. Looking back I should have gotten together with you. One of my favorite posters.

Anyhow it will be fine. Just more rain in a few hours than you will get all year most likely...
 

2nd Serve Ace

Hall of Fame
Same I cut out the crosses because the old worn kevlar feels much better. My next question is the starting cross knots tied to the mains are a pain to unknot so I can string the cross. Are you using a different knot to make the untie easier?
I've never been able to unknot Kevlar since it sinks in so much against itself. I believe Ramon will put a separate small piece of string through the knot before tightening, and uses that to help loosen the knot if he wants to change. However I see that as just a "testing out" strings trick that I don't want to do since my mains are making 70 hours plus on any frame.

If you have a snub nosed cutting tool, it's not too hard to cut a part of the knot to undo it, though. Then I move the Kev from an 18 main to a 16 main racket normal stringing.

I have to snip the ends of the Kev a couple of times to get it through the first few grommets on 2nd use, fwiw.

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D

Deleted member 23235

Guest
Hey, everyone! Help would be much appreciated.

I string for my husband, who is a 4.5 with a killer topspin forehand that tears through strings, especially because he also uses a Wilson 99S. After breaking strings about every 3 hours with EXPENSIVE strings that were supposed to be durable (and that tore up my hands to string), we switched him to some ridiculously cheap 15G nylon. He now breaks strings every 2.5 hours instead of ever 3, but I can get a reel of nylon (a reel, not a set) for about $20, and it's soft and easy to string, so we stopped spending $$$ on the other stuff and I just had to sting a little more often.

But now he's playing more and I just can't keep up with the stringing anymore, even though I can restring a racket in about 25 minutes. And in our domestic life, stringing is my thing, so telling him to string himself isn't going to work. He does vacuum, though.

So, before changing rackets to a traditional closed pattern, we're trying kevlar mains and putting the same 15G nylon in the crosses. I strung him at 60lbs with the nylon, so I dropped the Kevlar down to 50 and put the nylon in at 55 because I was a little worried about the tension differential on the racket head.

So - what are you guys stringing your rackets with, for those of you who use kevlar? I just put the kevlar/nylon hybrid in last night, so he hasn't even played with it to see how it goes, but I figure I'm going to have to play around with the tensions a bit before we can really see if this is going to work out for us.

Any comments or suggestions, please??
old thread,... but curious, how'd it go?
i specifically stopped using the 99S because i was ripping through strings... lux 4g (recommended on the racquet), was done in 1h. most poly done in 3-4h. kevlar lasted longer, but then negated the spin effect of the racquet, so why bother (better to go with dense 18x20 and poly). personally switched to sw104, because i hated stringing 2-3x a week. and while fun, the spin was actually "less heavy" than a racquet with higher swing weight + dense pattern (easier for opponents to handle).
 

teachingprotx

Hall of Fame
Just a small follow up, despite the feel and apparent comfort, it killed my arm in a couple of hours.
Not for me.
I’m sorry to hear this . Kevlar is not for everyone . As a matter of fact I would hate it in any other racket except for the flexy head frames that I play .. I use the “ stiffer apparently “ prince pro blend kev, but to me it’s very soft .
May sound a little crazy but I also recycle . I cannot for the life of me remember who tipped me off on the reusable aspect of Kevlar but it’s very much a truism statement . As a matter of fact I enjoy my Kevlar best after 2 restrings on the crosses . Saves me a ton of time . And saves on money too .. but time is a more valuable commodity to me than $. In terms of restringing .. I keep the mains for about 6-7 months . At least until it eventually saws thru .
I play and teach professionally 6 days a week . 4 weeks off a year .. and it’s by far the best string I’ve ever used for manny different reasons. But again I use a frame in the low 30’s Ra stiffness and I string my racket in the low 30’s as well so I’m sure that is a huge component to my comfort and love of the aramid !
 

tennismex123

New User
Hello, I´m breaking Solinco Tour bite in my PA in about 2-3 hours, its a good idea stringing with Kevlar? The PA itself its a stiff frame, with Kevlar would be an arm killer or not? If poly last at max 4 hours, how long do you think Kevlar would last? Thanks in advance
 

TypeRx

Semi-Pro
FWIW, I used to use a 2015 Bab Pure Drive+ (stiffer than a PA) and found Ashaway Kevlar 16/Monogut ZX Pro 17 at 60 lbs/40 lbs to be MUCH more comfortable than even a soft full bed of poly or poly/syn gut hybrid. In fact, I was able to play through GE with this setup. I generally get 15+ hours (sometimes considerably more) out of Kev/ZXP whereas I would get max of 8 out of poly.

I have never used full bed Kevlar nor am I interested in trying that out, but I don't think you were referring to that anyways.
 
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