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Lovely_Bone
10-20-2012, 07:51 PM
Hopefully this puts the questions to rest as to what type of string Rafa really uses. I think his tension was already pretty widely known.

http://imageshack.us/a/img831/5951/15663344758633527672916.jpg

aznhippos
10-20-2012, 10:12 PM
As a reminder to all Nadal fans with the APDGT his tension might not be the tension you want

NikeWilson
10-21-2012, 11:38 AM
I knew he was using RPM Blast for sure.
I didn't know what his tension was, but 55 lbs is interesting.
I've only used RPM Blast in my Mains of a hybrid(with SynGut crosses). I strung it at 58 lbs, and it worked beautifully.
I imagine a full bed of RPM at 55 lbs is slightly on the highside, but it is a soft comfortable string for a Poly, so I'm not too surprised.

Lovely_Bone
10-21-2012, 11:46 AM
I knew he was using RPM Blast for sure.
I didn't know what his tension was, but 55 lbs is interesting.
I've only used RPM Blast in my Mains of a hybrid(with SynGut crosses). I strung it at 58 lbs, and it worked beautifully.
I imagine a full bed of RPM at 55 lbs is slightly on the highside, but it is a soft comfortable string for a Poly, so I'm not too surprised.

Yeah, a lot of people were debating as to whether or not he used black pro hurricanes or rpm. I think there was also another type of string that people thought he may be losing. Cool to know that it's RPM for sure.

sixone90
10-21-2012, 02:38 PM
Well back when he was using Duralast, his stringing details showed PHT so that sticker isn't going to prove definitively what he uses. But I do tend to believe he actually uses RPM 1.35mm

[d]ragon
10-21-2012, 05:52 PM
I really want to stress that Nadal as well as every other pro does not stick to a single tension. Rather, they change their tension depending on conditions such as surface, temperature, humidity, ect.

ericsson
10-22-2012, 01:12 AM
Well back when he was using Duralast, his stringing details showed PHT so that sticker isn't going to prove definitively what he uses. But I do tend to believe he actually uses RPM 1.35mm

That is correct, on the strings it says Hurricane Tour 1.35 but still was Duralast...

Lambsscroll
10-22-2012, 06:47 AM
Where can you buy RPM Blast 15L (1.35)?

Bartelby
10-22-2012, 06:53 AM
I don't particularly want to play with a 1.35 string but it must be a very different racquet than my 1.24 one.

citybert
10-22-2012, 07:29 AM
Where can you buy RPM Blast 15L (1.35)?

true, never seen this anywhere

darklore009
10-22-2012, 08:01 AM
Exclusive for nadal?

BabolatTennis9
10-22-2012, 03:32 PM
you cant buy the RPM at 1.35mm but on tenniswarehouse Europe you can buy PHT and Duralast at 1.35mm

BabolatTennis9
10-22-2012, 03:33 PM
his string set up is alot like mine :o i use pros pro strategem (yes this is a poly) 1.35mm at 55lbs on my aeropro

xFullCourtTenniSx
10-29-2012, 10:22 PM
Yeah, a lot of people were debating as to whether or not he used black pro hurricanes or rpm. I think there was also another type of string that people thought he may be losing. Cool to know that it's RPM for sure.

He never used Pro Hurricane Tour. He used Duralast. His strings were printed to say PHT, but EVERYTHING else about them was different. There was a comparison photo on it.

Tension was universally known to be 55 lbs (or 25 kg). Duralast was pretty universally accepted to be his strings until he switched to RPM Blast. Though I was never big on Rafa's equipment other than racket specs, which probably haven't changed, so I'm not the one you'd ask about what his actual strings are.

m2nk2
07-31-2013, 07:02 AM
The image is from this video from babolat, it's 720p so maybe someone wants to look for other clues.

http://www.youtube.com/watch?v=BuUc5jyrn8w

At 1.38 you can clearly see it says RPM Blast. But it definitely isn't RPM Blast since that string should be octogonal, no?

He's probably still using Duralast 15L, but painted black to look like RPM Blast.

m2nk2
07-31-2013, 07:10 AM
Another one.

http://www.youtube.com/watch?v=kvUr_NJoz28

sixone90
07-31-2013, 04:10 PM
The image is from this video from babolat, it's 720p so maybe someone wants to look for other clues.

http://www.youtube.com/watch?v=BuUc5jyrn8w

At 1.38 you can clearly see it says RPM Blast. But it definitely isn't RPM Blast since that string should be octogonal, no?

He's probably still using Duralast 15L, but painted black to look like RPM Blast.

Have you ever seen RPM Blast? You can't really see the octagonal shape with the naked eye

ProStringing
07-31-2013, 10:05 PM
Just to finally draw this topic to a conclusion, below are a couple of quotes from uk_skippy and jazar. Both are members of the Babolat and Wimbledon Stringing Teams:

The string he is using is RPM Blast. How do I know this? Because I've strung some of his rqts. Why is RPM and not his original duralast in black? Because you can feel the texture of the current string, something the duralast doesn't have.

While I understand your point, I can assure that all what I'm telling you is not an opinion, but fact! An opinion would be 'I believe he is using RPM because Babolat have told me that's what he's using'; the fact is 'I know he's using RPM as I've actually strung some of his rqts. Please also be assured that I am a member of a Babolat stringing team, and that I'm also member of the Wimbledon stringing team. I'll deal with facts of rqts & strings that I've used while being a member of those teams irrespective of the brands.


Like Paul, I am on the Wimbledon and Babolat stringing teams, and he is 100% right. Nadal uses RPM Blast 1.35. Babolat have told us this and we have both strung his rackets.

I have also handled his rackets and would like to add that his string is marked "Babolat RPM Blast 15L". Regarding tension, he usually strings at 25.0 KGS. All 56 rackets that were strung for him at Roland Garros this year were at that tension.

Hope this can be of help,

ProStringing

uk_skippy
08-01-2013, 12:54 AM
At 1.38 you can clearly see it says RPM Blast. But it definitely isn't RPM Blast since that string should be octogonal, no?

He's probably still using Duralast 15L, but painted black to look like RPM Blast.

It's definitely RPM Blast 1.35mm; see post above this one.

Regards

Paul

Jerme
08-01-2013, 04:32 AM
i just can't believe he is using such a thick gauge for his string.

Lukhas
08-01-2013, 05:16 AM
i just can't believe he is using such a thick gauge for his string.
Given his high topspin game and 100inē racquet, he's probably breaking everything else.

ericsson
08-01-2013, 05:21 AM
Given his high topspin game and 100inē racquet, he's probably breaking everything else.

I think that's one of the reasons he started out with the 1.35mm when he was younger...

m2nk2
08-01-2013, 05:58 AM
Well of course Babolat are saying that he's using RPM, just like they're saying that he's using the latest APD. Their word deosn't really mean much.

ricki
08-01-2013, 06:29 AM
If babolat had machine to cast 1.35 mm gauge of RPM Blast why they dont sell it? They have machine just to make few reels per year??? It seems to me like some advertisement cheat, maybe he really uses PHT or Duralast?

mlocke1322
08-01-2013, 07:46 AM
Lots of companies manufacture string they don't sell at regular retail yet it is available to their tour players and in other limited instances. I've played with Tour Bite 15 and Pro Stacked 15L from Solinco. Neither one is a gauge available at retail however they clearly produce it.

uk_skippy
08-01-2013, 10:22 AM
Well of course Babolat are saying that he's using RPM, just like they're saying that he's using the latest APD. Their word deosn't really mean much.

What proof do you want that he's using it, given that 3 tournament stringers who've strung Nadal's rqts confirm that its Blast 1.35mm??

Regards

Paul

Rabbit
08-01-2013, 11:04 AM
What proof do you want that he's using it, given that 3 tournament stringers who've strung Nadal's rqts confirm that its Blast 1.35mm??

Regards

Paul

Clearly you cannot recognize a clairvoyant. ;)

uk_skippy
08-01-2013, 11:11 AM
Clearly you cannot recognize a clairvoyant. ;)

True, didn't see that coming. Although I think he's a cynic as it won't matter who confirms the facts, he won't believe them.

Regards

paul

citybert
08-01-2013, 11:24 AM
i just can't believe he is using such a thick gauge for his string.

He probably pops everything else in 20 minutes or less. Don't think they even sell 15L for RPM Blast, at least not in the states.

m2nk2
08-02-2013, 12:41 AM
What proof do you want that he's using it, given that 3 tournament stringers who've strung Nadal's rqts confirm that its Blast 1.35mm??

Regards

Paul

If you could feel or see the octagonal shape. Then I would believe you :) But now it seems like Bab just gave you a set of strings and told you it was RPM.

uk_skippy
08-02-2013, 12:51 AM
If you could feel or see the octagonal shape. Then I would believe you :) But now it seems like Bab just gave you a set of strings and told you it was RPM.

On the 1.35mm RPM Blast that I've strung Nadal's rqts with, you can feel the shape. The shape is not so pronounced on the gauges below due to the unique octagonal shape of the string; and the same goes for Pro Hurricane Tour.

Of course, Babolat don't give me the string; Nadal himself will give a reel or two at the beginning of the tournament.

So, your statement of "If you could feel or see the octagonal shape. Then I would believe you" becomes true as obviously I'd need to handle it when I was stringing Nadal's rqt!

Believe me now??

Regards

Paul

ricki
08-02-2013, 01:23 AM
What proof do you want that he's using it, given that 3 tournament stringers who've strung Nadal's rqts confirm that its Blast 1.35mm??

Regards

Paul

Did they make some material expertise od did they play with his strings?

uk_skippy
08-02-2013, 01:33 AM
Did they make some material expertise od did they play with his strings?

Not sure what you're asking??

And as for the 3 tournament strings I referred to, I included myself as 1 of those 3.

Regards

Paul

Rafaboy
08-02-2013, 03:29 AM
What proof do you want that he's using it, given that 3 tournament stringers who've strung Nadal's rqts confirm that its Blast 1.35mm??

Regards

Paul

Ok BUT...heres the big question nobody seems to realize...

WHICH RPM BLAST?? (there are now three versions of this string available)

ricki
08-02-2013, 03:46 AM
Not sure what you're asking??

And as for the 3 tournament strings I referred to, I included myself as 1 of those 3.

Regards

Paul

So you touch the string with your fingers during stringing and you KNOW that it is really RPM? Basically every poly strings feel same in hands.

m2nk2
08-02-2013, 03:48 AM
So you touch the string with your fingers during stringing and you KNOW that it is really RPM? Basically every poly strings feel same in hands.

You can touch and tell with RPM Blast just like you can with Alu Power Rough strings.

They're not circular.

sixone90
08-02-2013, 03:50 AM
WHICH RPM BLAST?? (there are now three versions of this string available)

You said it yourself. Blast.

uk_skippy
08-02-2013, 04:09 AM
Ok BUT...heres the big question nobody seems to realize...

WHICH RPM BLAST?? (there are now three versions of this string available)

There is only 1 Version of RPM Blast, with 3 different, public available guages (1.2mm, 1.25mm & 1.3mm). 1.35mm is only available to pro players i.e. Nadal.

There are 3 versions of RPM - RPM Blast, RPM Team & RPM Dual.

So you touch the string with your fingers during stringing and you KNOW that it is really RPM? Basically every poly strings feel same in hands.

I touch the string with my fingers and I know its RPM Blast. Not every poly feels the same in your hands. Dunlop Black widow does not feel the same as Luxilon ALU Power. 1 is shaped with 'sharp' edges, the other is smooth. There are triangluar, pentagonal, hexagonal, octagonal shaped polys, none of which will feel the same as a traditional round string.

Regards

paul

Rabbit
08-02-2013, 04:59 AM
Final conclusion:

while a clairvoyant is good, one who lays hands is better

DefensiveTennis
12-15-2013, 05:18 AM
I was told by a stringer that he has talked to guys who are on tour and they are saying Nadal is using Black Code.

jelle v
12-15-2013, 05:39 AM
1.35?!?!

Wow.. why would he use a 1.35 string :confused: Obvious answer of course would be that a thinner gauge breaks quicker, but come to think about it, I rarely (never?) see Nadal breaking strings.. With enough rackets in his bag, he would be save i would assume.. :-|

Of course maybe he just likes the feel of a 1.35 gauge string... That would be a strange notion for me..

WILSONKGUT
12-15-2013, 03:50 PM
1.35 mm for more control but stiffness will be high.

MachiA.
12-16-2013, 01:55 AM
1.35?!?!


More spin. More string material comes in contact with the ball with the right space in string pattern.

Ball dives into the string bed and is "lifted up" more effectivly with a thicker string.

KR

dominikk1985
12-16-2013, 04:05 AM
More spin. More string material comes in contact with the ball with the right space in string pattern.

Ball dives into the string bed and is "lifted up" more effectivly with a thicker string.

KR

I have read that round polys produce more spin at thinner gauges (because it bites the ball more and the thicker string is slipping over the ball) but with the "edgy" strings thicker gauges produce more spin because it has bigger edges. most modern polys have edges so that might be an explanation.

MachiA.
12-16-2013, 05:13 AM
I have read that round polys produce more spin at thinner gauges (because it bites the ball more and the thicker string is slipping over the ball) but with the "edgy" strings thicker gauges produce more spin because it has bigger edges. most modern polys have edges so that might be an explanation.

There are different "schools" in this question.
I tried both. Thicker=more spin.
The "bite argument" is popular, but "more material" on the ball gives more action on the ball.

Of course technique is the most important.

KR

jazar
12-16-2013, 07:01 AM
I was told by a stringer that he has talked to guys who are on tour and they are saying Nadal is using Black Code.

Please never contribute in this section again.

dominikk1985
12-17-2013, 02:05 AM
There are different "schools" in this question.
I tried both. Thicker=more spin.
The "bite argument" is popular, but "more material" on the ball gives more action on the ball.

Of course technique is the most important.

KR

I think the arguement was that with a round poly the string gets "flatter" (bigger "smoother" radius) and thus not gripping that ball as well as a thin string which "cuts" the felt.

with a textured poly the thicker string gets more edgy and thus grips the ball better.

ericsson
12-17-2013, 02:34 AM
Please never contribute in this section again.

LOL..... :)

MachiA.
12-17-2013, 03:11 AM
I compared thicker and thinner round poly of the same model.

I can not support the "bite" theory with round thinner polys.

Maybe because the snap back of thicker polys is also more explosive, because the thicker ones are stiffer.

KR

raging
12-17-2013, 03:18 AM
LOL..... :)

yes, great post from Jamie!
Blunt but to the point.
A spade is a Bloody shovel...:twisted:

The internet can be cruel but some posters could do some research.

Paul and Jamie are both stringing pro player's rackets, they have no reason to lie.

dominikk1985
12-18-2013, 02:23 PM
seems like nadal is pretty boring with his strings:). I read he always uses 55 no matter what court, altitude, balls or weather while other guys will fluktuate a lot depending on all those factors (some over a range of more then 10 pounds)

Rock Strongo
12-18-2013, 02:55 PM
Please never contribute in this section again.

What are you talking about? Such knowledge can not go unknown to the rest of the public!:twisted:

tkoziol
12-18-2013, 05:30 PM
ragon;6967881']I really want to stress that Nadal as well as every other pro does not stick to a single tension. Rather, they change their tension depending on conditions such as surface, temperature, humidity, ect.

I know for a fact that Nadal uses the same tension at the US Open and at the Australian Open. As for the French Open I'm not sure, but I've always heard that it was 55lbs. Nadal seems to be the one of the least picky players on tour.

As for different pros using different string tensions, this is more superstition than anything else. Several studies have shown that going from 40lbs to 70lbs won't result in much change. Typically, the even in the most extreme changes the difference will be less than 3mph:
http://www.ncbi.nlm.nih.gov/pubmed/16195027
and
http://tennis.quickfound.net/training/high_tech_tennis.html

tkoziol
12-18-2013, 05:41 PM
There are different "schools" in this question.
I tried both. Thicker=more spin.
The "bite argument" is popular, but "more material" on the ball gives more action on the ball.

Of course technique is the most important.

KR

Not enough studies so far....But I think that given what Wilson has shown with the spin effect technology, less seems to be more. The fewer strings in the string pattern, then the more the ball will "sink" into the string bed. This will impart more of the snapback onto the ball. Therefore, any way you "open up" the string bed, will get you greater spin. Either thinner strings or less strings. Going from 19 crosses to 14 crosses was found to get about a 500 rpm increase in spin. Here is an article on it: http://link.springer.com/article/10.1007/s12283-013-0118-y.

BTW here are the exact radians per second conversions:
1117.26770178231 rpms to 1623.3804213931 rpms

tsongaali
12-18-2013, 09:23 PM
I know for a fact that Nadal uses the same tension at the US Open and at the Australian Open. As for the French Open I'm not sure, but I've always heard that it was 55lbs. Nadal seems to be the one of the least picky players on tour.

As for different pros using different string tensions, this is more superstition than anything else. Several studies have shown that going from 40lbs to 70lbs won't result in much change. Typically, the even in the most extreme changes the difference will be less than 3mph:
http://www.ncbi.nlm.nih.gov/pubmed/16195027
and
http://tennis.quickfound.net/training/high_tech_tennis.html

Your first source contradicts what you're saying... which is why using scientific studies as proof of something is pretty much a waste of time (check all the studies on the correlation between number of guns and safety for example, you'll find tons of contradictory results). There's always a study that proves any point; whether the study was conducted properly or not is what really matters. It's not enough to just cite a scientific study to prove your point.

NRod2
12-18-2013, 10:46 PM
Do they sell the exact type of string that Nadal uses on TW, just out of curiosity?

ProStringing
12-18-2013, 11:39 PM
ragon;6967881']I really want to stress that Nadal as well as every other pro does not stick to a single tension. Rather, they change their tension depending on conditions such as surface, temperature, humidity, ect.

Rafa does not seem to be affected by this nearly as much as some other players. The largest tension change for him was a gradual change from 25.5 KGS in the first week of Roland Garros 2011 to 24.5 KGS for the last few days and final.

I know for a fact that Nadal uses the same tension at the US Open and at the Australian Open. As for the French Open I'm not sure, but I've always heard that it was 55lbs. Nadal seems to be the one of the least picky players on tour.

It certainly seems that way - All 56 of his rackets strung at Roland Garros this year were at that tension.

Just as a side note, Rafa and many other european players request their tension in KGS. He will request a tension of 25.0 KGS which is equivalent to 55.1 LBS.

Hope this can be of help,

ProStringing

raging
12-19-2013, 01:38 AM
Rafa does not seem to be affected by this nearly as much as some other players. The largest tension change for him was a gradual change from 25.5 KGS in the first week of Roland Garros 2011 to 24.5 KGS for the last few days and final.



It certainly seems that way - All 56 of his rackets strung at Roland Garros this year were at that tension.

Just as a side note, Rafa and many other european players request their tension in KGS. He will request a tension of 25.0 KGS which is equivalent to 55.1 LBS.

Hope this can be of help,

ProStringing

somebody else who knows what he is talking about.

Nothing more to add, except as background Rafa has always left the stringing/rackets to Tony. He takes an interest but has been coached that too many distractions will be bad for his game!:)

Unlike a few posters on here.

tkoziol
12-19-2013, 07:13 AM
Your first source contradicts what you're saying... which is why using scientific studies as proof of something is pretty much a waste of time (check all the studies on the correlation between number of guns and safety for example, you'll find tons of contradictory results). There's always a study that proves any point; whether the study was conducted properly or not is what really matters. It's not enough to just cite a scientific study to prove your point.

Actually the first study does not contradict what I'm saying. When they say the results are significant, they are talking about the strength of the P Values. The P Value describes how many times the study can be replicated and get the same results. A P<0.05. basically says that 95% of the time these results will occur. That is the "significance" that they are describing. This is more important to the researchers because it shows that their study is not merely a fluke, but a replicable design.

As for the actual numbers: 40lbs had rebound speeds of 67 mph, and 63 pounds had rebound speeds of 65 mph. So a 23 pound difference in tension translated to a 2 mph difference in ball speed (power). This is almost identical to the finding of the other study I posted.

Lastly, studies on racquets and strings are "in lab" studies. These are very replicable, and almost never contradict one another. Similar to testing air resistance in a lab setting. If you drop a bowling ball and a feather at the same height at the same time, the bowling ball will hit the ground first EVERY time. Something like gun control is more of an abstract issue that will vary wildly. For example, what stats do you use? Local, FBI, eyewitness, NRA, etc? Because the source of the data is outside of the lab, it should be questioned. Typically, studies of this nature have very high internal validity, but very low external validity.

Studies on racquets and strings typically have a very high external validity, and assuming the P Values are strong (which they almost always are), a very high internal validity.

tsongaali
12-19-2013, 09:24 AM
Actually the first study does not contradict what I'm saying. When they say the results are significant, they are talking about the strength of the P Values. The P Value describes how many times the study can be replicated and get the same results. A P<0.05. basically says that 95% of the time these results will occur. That is the "significance" that they are describing. This is more important to the researchers because it shows that their study is not merely a fluke, but a replicable design.

"This was particularly evident when considering whether the ball travelled long or landed in the net. High string tension was more likely to result in a net error, whereas low string tension was more likely to result in the ball travelling long. It was concluded that both gender and the string tension influence the speed and accuracy of the tennis ball."

There's 95% significance string tension DOES affect the speed and accuracy of the ball. You said it does not.

tkoziol
12-19-2013, 09:54 AM
"This was particularly evident when considering whether the ball travelled long or landed in the net. High string tension was more likely to result in a net error, whereas low string tension was more likely to result in the ball travelling long. It was concluded that both gender and the string tension influence the speed and accuracy of the tennis ball."

There's 95% significance string tension DOES affect the speed and accuracy of the ball. You said it does not.

Yes, it does effect the ball by 2mph as well as effecting net error by a small amount which supports their hypothesis. However, it is only 2mph!!!! The author is happy that his hypothesis was correct, but the results are not particularly impressive.

In other words, what he found is that for every 10 pounds of tension you decrease, you will gain 1mph of speed/power. This increase/decrease of power will result in more/less net errors. BUT NOT VERY MANY. Yes it supported his hypothesis, but only by definition.

For example, lets say I have some amazing new business strategy that I hypothesize will increase company profits in 1 year. After 1 year, I increase company profits by 2%. I will likely get fired even though my hypothesis was right. A 2% increase simply isn't enough to justify the time, money, and effort given to my plan.

I hope this makes sense. Is anyone else following me?

hirschi80
12-20-2013, 12:31 AM
I know for a fact that Nadal uses the same tension at the US Open and at the Australian Open. As for the French Open I'm not sure, but I've always heard that it was 55lbs. Nadal seems to be the one of the least picky players on tour.

As for different pros using different string tensions, this is more superstition than anything else. Several studies have shown that going from 40lbs to 70lbs won't result in much change. Typically, the even in the most extreme changes the difference will be less than 3mph:
http://www.ncbi.nlm.nih.gov/pubmed/16195027
and
http://tennis.quickfound.net/training/high_tech_tennis.html

it makes no sense because with stringing higher u also start to hit harder and move ur racket faster to get the ball over the net. the study would only make sense if u let hit a robot. or if u let hit them withought knowing the tension and with a racket change before every hit. such a waste of time.