Ultimate String Weight Thread!

Hyper G 17 took the SW for my blade from 291 unstrung to 315 strung ( w/ dampener).

Lynx Tour 17 brings the SW to 325. 10 point difference!

Does that sound about right?
 
It’s around 3 grams heavier.
hmm, 10 sw points sounds a little steep to me (I would expect around 6 points based on what you get from adding the equivalent amount to the center of the average stringbed(which may not be a sufficiently accurate method). Did you measure both on the same machine?
 
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hmm, 10 sw points sounds a little steep to me (I would expect around 6 points based on what you get from adding the equivalent amount to the center of the average stringbed(which may not be a sufficiently accurate method). Did you measure both on the same machine?
Nope. 1 is ancient. Good point as the 3 grams is jot equal to 3 grams at 12.

But does 291 to 315 with hyper G 17 and dampener make sense? That was the latest greatest Wilson machine.
 
Nope. 1 is ancient. Good point as the 3 grams is jot equal to 3 grams at 12.

But does 291 to 315 with hyper G 17 and dampener make sense? That was the latest greatest Wilson machine.
24 points sounds low to me, but i have never used hyper g, unfortunately. did you weigh the racquet before and after?
 
I don’t know if it’s been posted before but I measured the empty plastic reel:
200m is 50grams
100m is 40grams

And 2 strings:
Prince Premier Control 1.30 12m (just string, no zip tie) is 18grams
Prince Premier Power 1.25 12m is 16grams

That’s the most accurate my scale can do
If you don't mind, could you try a re-measure on the PPP 1.25?

I just strung my Prince Phantom 93P 14x18 with PPP 18ga (1.20) on the mains and OGSM 18ga (1.15) on the crosses.

I split a fresh pack of PPP 18ga in half and weighed each side (should have been 6M unless Prince randomly gave me extra) for 8.1g - if your measurement of 12M of PPP 1.25 being 16g holds up, that would be quite the variance.

fwiw the racket ended up taking exactly 5.1g of PPP18 on the mains and 5.2g of OGSM18 on the crosses
 
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New entry.

Weight Subtraction Method

95sq, 18x16 pattern
String JobGauge (mm)Weight (g)
Luxilon ALU Power1.2514.7
Tier 1 Black Knight / Ghostwire1.18 / 1.1715

95sq, 16x18 pattern
String JobGauge (mm)Weight (g)
Tourna Quasi-Gut Armor1.314.4
Babolat VS Touch / Tier 1 Ghostwire1.35 / 1.2716
Solinco Tour Bite1.1513.3
Luxilon Natural Gut1.317
Kirschbaum Max Power / Tier 1 Ghostwire1.25 / 1.1714
Tier 1 Tour Status
/ Ghostwire
1.25 / 1.1714.9

New Packet Method (no packaging, with zip tie)

StringGauge (mm)Weight (g)
Kirschbaum Max Power1.2521.5
Luxilon Natural Gut1.322.6
Tier 1 Tour Status1.2521.1
why is natural gut so heavy ?
 
New updates!

Weight Subtraction Method

95sq, 18x16 pattern
String JobGauge (mm)Weight (g)
Luxilon ALU Power1.2514.7
Tier 1 Black Knight / Ghostwire1.18 / 1.1715

95sq, 16x18 pattern
String JobGauge (mm)Weight (g)
Tourna Quasi-Gut Armor1.314.4
Babolat VS Touch / Tier 1 Ghostwire1.35 / 1.2716
Solinco Tour Bite1.1513.3
Luxilon Natural Gut1.317
Kirschbaum Max Power / Tier 1 Ghostwire1.25 / 1.1714
Tier 1 Tour Status / Ghostwire1.25 / 1.1714.92
Luxilon Natural Gut / Kirschbaum Max Power1.30 / 1.2516.4

100sq, 16x19 pattern
String JobGauge (mm)Weight (g)
Luxilon Element Soft IR / Technifibre X-one Biphase1.27 / 1.3016.6
Kirschbaum Max Power/ Tier 1 Ghostwire1.25 / 1.1715.6
Babolat VS Touch / Kirschbaum Max Power1.25 / 1.2516.8

New Packet Method (no packaging, with zip tie)

StringGauge (mm)Weight (g)
Kirschbaum Max Power1.2521.5
Luxilon Natural Gut1.322.6
Tier 1 Tour Status1.2521.1
Babolat VS Touch1.2520.5
would you say that X-1 biphase is one of the lightest Multi string out there if compared to side by side with same gauge string ? and what about wilson NXT multis like NXT power if compared to X-1 in weight ?

and where do you guys think the new Solico Mach 10 fits in weight compared to other main stream polys like Alu power or confidential ? lighter or heavier ?
 
Why is X-1 Natural so much heavier than X-1 orange or Multifeel ? they are pretty much same gauge
X-One orange is a squash string, and used to be way cheaper in reels than the tennis counterpart. I prefer the orange over the natural, as it seem to have similar coating to MF black. So they are not identical as they have different coating.
 
This is an underrated topic. Strings vary so much. I don't have any exact measurements, but I noticed Lynx Tour and Toroline strings weigh a lot, and give added swingweight. I think it would be good to sell with info about weight so people don't get dissatisfied. For me personally, I don't want more weight in the hoop.

I strung up MSV Focus Hex Ultra 1.20 once in a Radical Pro and that made the racquet so whippy and light. I use also a Savarez string from France that's quite light in 1.18mm. Poly Tour Pro yellow 1.20 tends to be light as well.
 
This is an underrated topic. Strings vary so much. I don't have any exact measurements, but I noticed Lynx Tour and Toroline strings weigh a lot, and give added swingweight. I think it would be good to sell with info about weight so people don't get dissatisfied. For me personally, I don't want more weight in the hoop.

I strung up MSV Focus Hex Ultra 1.20 once in a Radical Pro and that made the racquet so whippy and light. I use also a Savarez string from France that's quite light in 1.18mm. Poly Tour Pro yellow 1.20 tends to be light as well.


Lynx Tour 1.20 in a 98 in² = 16.5gr
MSV Focus Hex Ultra 1.20 in the same 98 cm² = 16.1gr
Signum Pro Polaris 1.20 = 15.3gr
Toalson Devil Spin 1.20 = 14.6
 
Alu Power, no idea ....

Topspin Cyber Flash 130 in 98cm² = 18.6gr
Dumlop Explosiv Speed 125 = 17.35gr
Tourna Big Hitter Silver 7 Tour = 15.5gr

Tecnifibre Duramix HD 1.30 in 98in² = 16.7gr
Isospeed Energetic Plus = 14gr
what was the gauge on that big hitter silver ?
 
how does Alu power compare in weight with Multi string like X-1 biphase ?
Alupower 1.15 is 8.3g for 6m

I wish all would just cut 6m and measure before they string their racquet, so it would be easier to compare.

Makes no sense to know what weight is in one racquet unless you use same racquet and tension. When I know the 6m weight for a string, I can calculate the total weight for a given racquet and SW.
 
Alupower 1.15 is 8.3g for 6m

I wish all would just cut 6m and measure before they string their racquet, so it would be easier to compare.

Makes no sense to know what weight is in one racquet unless you use same racquet and tension. When I know the 6m weight for a string, I can calculate the total weight for a given racquet and SW.
is 6 M, half set or full set ? looks like half set. For Poly string ,, is that in the heavy category ?? or moderate, or light ?
 
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This is exactly why the Tennis Warehouse "strung weight" is so off. Grip size also matters when measuring static weight. TW, please publish the average (or intended by brand) unstrung weight, 4 3/8 grip for each racket. Not knowing this, I demoed a 4 3/8, the 4 1/4 was noticeably lighter and less stable. We have to go to other sites to find the correct information about rackets. Chris Edwards, you are the adult in the room (a compliment). Please convince the powers that be at TW to fix this and give better information. I got stuck with 2 full price rackets that are unusable because of this idiocy.
 
is 6 M, half set or full set ? looks like half set. For Poly string ,, is that in the heavy category ?? or moderate, or light ?
A full set is 12.2m or 40feet but problem with measuring a full set is that the length varies by brand. Sometimes a full set will be 12m other times 12.5m.

8.3g for 6m poly is light. Most 1.25 polys are more than 10g

By my measurements 1g extra string weight equal to about 1.8 SW depending on racquet.
 
I can confirm what Happi writes.

My experience: I bought a used Prokennex Q+20 which came stringed with Wilson Sensation 16g. Its swing weight was about 330, definitively too much for my arm and shoulder. I cut and made it re-stringed it with Rip Control 1.20: now the swing weight is about 323, which is still high for me but manageable.
Weight difference on a 110 inches 16/19 racquet between Wilson Sensation 1.3 and Rip Control 1.2 was 4 grams (exactly 4.1), which resulted in about 7 SW difference.

7 SW / 4.1 grams = 1.7 SW/gram
 
There are a lot of reasons that can explain those slight differences:
  • Swing weight calculation depends much on the method used, and if the machine is well calibrated
  • Scales calibration: 0.1 gram of error can make the coefficient vary from 1.7 to 1.75
  • Finally, also the specific pattern and structure of the racquet might change a bit
 
not using the most expensive scale so it might be necessary to take it with some margin of error, but here’s what I’ve got logged

the blanks are strings I have but either forgot to measure when I strung it last or haven’t strung in a while - I’ll edit/fill them in when I do



StringWeight for 6M (in grams)
Babolat Xcel 179.2
Diadem Solstice Black 17
Diadem Solstice Black 188.8
Diadem Solstice Power 179.9
Dunlop Hexy Fibre 16
Dunlop Iconic All 179.5
Gosen G-Tour 3 17L
Gosen OGSM 17
Gosen OGSM 187.6
Isospeed Cream 179.7
Isospeed Professional Classic 17
Isospeed V18 198.7
Kirschbaum Pro Line II 18L
Kirschbaum Pro Line Rough 18
MSV Focus Hex 198.8
Prince Lightning Pro 178.9
Prince Premier Control 178.8
Prince Premier Power 178.7
Prince Premier Power 188.1
Prince Synthetic Gut w/ Duraflex 178.7
Prince Tour XP 1710.7
Signum Pro Firestorm 17L9.6
Signum Pro Poly Plasma 17L
Signum Pro Tornado 17L8.8
Solinco Hyper G 198.1
Solinco Hyper G 207.0
Solinco Hyper G Soft 188.5
Solinco Mach-10 188.5
T1 Ghost Wire 189.0
T1 Ghost Wire 198.0
Tecnifibre Ice Code 189.6
Tecnifibre Multifeel 17
Tecnifibre NRG2 18
Tecnifibre X-1 Biphase 179.5
Tecnifibre X-1 Biphase 18
Topspin Cyber Blue 17L
Topspin Cyber Flash 17
Topspin Cyber Flash 17L
Tourna Big Hitter Black 7 188.4
Tourna Big Hitter Silver 17
Tourna Big Hitter Silver 7 Tour 17
Volkl Cyclone 198.4
Yonex PolyTour Air 16L
Yonex PolyTour Pro 188.8
Yonex Rexis Comfort 16L
Yonex Rexis Speed 16L8.9
YTEX Hexagon-X 16L
YTEX PentaPower Twisted 16L10.3
YTEX Protour Black 17L
YTEX Protour Blue 17L9.4
YTEX Square-X 16L10.3
YTEX Quadro Twist 16L10.6
YTEX Triangle Twisted 16L10.1
 
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Alupower 1.15 is 8.3g for 6m

I wish all would just cut 6m and measure before they string their racquet, so it would be easier to compare.

Makes no sense to know what weight is in one racquet unless you use same racquet and tension. When I know the 6m weight for a string, I can calculate the total weight for a given racquet and SW.
Happi, the ratio of 6 m to 40 ft. Is 1 to 2.0513. So multiply 6 m weight by 2.0513 to get 40 ft weight, or divide 40 ft weight by 2.0513 to get 6 m weight.

I agree, weight increase in a strung racquet is not specifically as useful to others unless they happen to use the same racquet and tension. However, we can still compare to see which strings and/or gauges are heavier or lighter.

Also, increase in SW per gram will depend on a frame’s head shape and size, drill pattern, and string pattern. Frames with crosses closer to the top or a more rounded head will see a bigger SW increase per gram. Frames with a more elongated head and/or more spaced crosses will increase a bit less. 2 SW points per gram is a good general guide, but it can vary by more than +/- 10% by frame.
 
Per my material engineering background, I propose the data can be presented as density of the string (calculated by weight / fixed volume = gm/(length x cross section area), as such one can estimate the weight difference when restringing one string to another on the same racket frame.......(providing same gauge and same tension, w.out pre-stretch, etc.....). Any thoughts?
 
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Per my material engineering background, I do would like to know the density of the strings (calculated by weight / fixed volume = gm/cc), so that I can estimate the weight difference when I restrung one string to another on the same racket frame.......
isn"t this pretty easy to estimate, at least for round strings, if you know the weight and diameter of a 6m piece of the string?
 
isn"t this pretty easy to estimate, at least for round strings, if you know the weight and diameter of a 6m piece of the string?
Yes, u r right, but the polyester shaped strings are the interesting one........Also whether the diameter of round string is true to the gauge size thickness or not......
 
Yes, u r right, but the polyester shaped strings are the interesting one........Also whether the diameter of round string is true to the gauge size thickness or not......
i do not see why weight/meter is not as useful as density in this context, especially since, with shaped strings, (or even round strings, as you mentioned), it is hard to know what the precise volume is
 
Happi, the ratio of 6 m to 40 ft. Is 1 to 2.0513. So multiply 6 m weight by 2.0513 to get 40 ft weight, or divide 40 ft weight by 2.0513 to get 6 m weight.

I agree, weight increase in a strung racquet is not specifically as useful to others unless they happen to use the same racquet and tension. However, we can still compare to see which strings and/or gauges are heavier or lighter.

Also, increase in SW per gram will depend on a frame’s head shape and size, drill pattern, and string pattern. Frames with crosses closer to the top or a more rounded head will see a bigger SW increase per gram. Frames with a more elongated head and/or more spaced crosses will increase a bit less. 2 SW points per gram is a good general guide, but it can vary by more than +/- 10% by frame.
Problem with measuring a full set of 40 ft is that it’s almost never 40 ft exactly. Different manufacturers have different length, so if you cut exactly 6 m that would be a reference point.

My frames are in general about 1.7 - 1.8 in SW / g installed string.
 
Per my material engineering background, I propose the data can be presented as density of the string (calculated by weight / fixed volume = gm/(length x cross section area), as such one can estimate the weight difference when restringing one string to another on the same racket frame.......(providing same gauge and same tension, w.out pre-stretch, etc.....). Any thoughts?
You also have to take into account different string materials, multi strings stretches more than poly strings at the same tension.
 
i do not see why weight/meter is not as useful as density in this context, especially since, with shaped strings, (or even round strings, as you mentioned), it is hard to know what the precise volume is
Thanks for allowing me to clarify my thinking. I assume the material formulation for one string is the same across different gauges hence the density of different gauges are suppose to be the same (i.e. density of Mach 10 gauge 16 should be same as gauge 18, I suppose). So measuring the density can save the effort of taking measure on various gauges of one string, that's one advantage. I can think of other advantages of having such data, such as one can summarize density data based on String Brand, then can rank which string is heavier than others. That's kind of a selector I think to see too. Just my thought.

As of the volume measurement question, yes it is difficult to measure and not to assume the cross sectional area to constant along the string. So there is material test lab measure the density of plastics. Simply put is having a fix weight of plastics put in a beaker of water and see the volume rise (mass /volume).....Sorry get too carry away. I am fine w/using length as well.......
 
You also have to take into account different string materials, multi strings stretches more than poly strings at the same tension.
Yes, I may account multifilament may stretch and use less strings, assuming 10-15% less. Another educational guess on the weight change with strings....Best if there is length change data at certain tension (@40lb, @ 50, and @ 60lb)......May be asking too much though......
 
not using the most expensive scale so it might be necessary to take it with some margin of error, but here’s what I’ve got logged

the blanks are strings I have but either forgot to measure when I strung it last or haven’t strung in a while - I’ll edit/fill them in when I do


String Weight 6M:


Babolat Xcel 17 - 9.2g

Diadem Solstice Black 17 -
Diadem Solstice Black 18 - 8.8g
Diadem Solstice Power 17 -

Dunlop Hexy Fibre 16 -
Dunlop Iconic All 17 -

Gosen OGSM 18 - 7.6g

Isospeed Cream 17 - 9.7g
Isospeed Professional Classic 17 -

MSV Focus Hex 19 - 8.8g

Prince Lightning Pro 17 - 9.0g
Prince Premier Control 17 - 8.8g
Prince Premier Power 17 - 8.7g
Prince Premier Power 18 - 8.0g
Prince Synthetic Gut w/ Duraflex 17 - 8.7g
Prince Tour XP 17 -

Signum Pro Firestorm 17L - 9.6g

Solinco Hyper G 19 - 8.1g
Solinco Hyper G 20 - 7.0g
Solinco Mach-10 18 - 8.5g

T1 Ghost Wire 18 - 9.0g

Technifibre X-1 Biphase 17 - 9.5g

Volkl Cyclone 19 - 8.4g

Yonex PolyTour Air 16L -
Yonex PolyTour Pro 18 - 8.8g
Yonex Rexis Comfort 16L -
Yonex Rexis Speed 16L - 8.9g

YTEX Square-X 16L - 10.3g
YTEX Quadro Twist 16L - 10.6g
This is why Tennis Warehouse needs to fix this outright lying to it's customers. The barebones hairpin can vary, we get that. But grip size increases or decreases weight, string material increases or decreases weight/swingweight. TW, stop lying to us on your website. And then lying when we email and communicate with your racket advisors.
 
This is why Tennis Warehouse needs to fix this outright lying to it's customers. The barebones hairpin can vary, we get that. But grip size increases or decreases weight, string material increases or decreases weight/swingweight. TW, stop lying to us on your website. And then lying when we email and communicate with your racket advisors.
what are they lying about? does it say somewhere that all strings weigh the same?
 
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what are they lying about? does it say somewhere that all strings weigh the same?
They only give us "strung weight", so yes, they are lying to us. Muti/gut is substantially less weight than poly. Then you factor in gauge. They need to give us unstrung weight, 4 3/8, and include information and disclaimers about weight differences of grip sizes, string materials, and string gauges. This is something that their supposed racket technician/guru Paul has NO clue about.
 
They only give us "strung weight", so yes, they are lying to us. Muti/gut is substantially less weight than poly. Then you factor in gauge. They need to give us unstrung weight, 4 3/8, and include information and disclaimers about weight differences of grip sizes, string materials, and string gauges. This is something that their supposed racket technician/guru Paul has NO clue about.

static weights vary within racquets of the same grip size, so while the foam on a racquet with a larger grip size should weigh more, this does not necessarily mean that the entire racquet will weigh more than one with a smaller grip.
 
YES, further proof we are being lied to by TW. Mark Boone could have nipped my issue in the bud years ago, but chose to be a total jerk instead. And if he has any management responsibilities, he is partly responsible for these lies TW feeds us regarding weight of rackets, including sting material, gauges, grip sizes. The "strung weight" is not what TW quotes. If they said that an L3/ or 4 3/8 racket unstrung is listed from the factory at x grams/ounces, and once plastic/cardboard are removed, we found this particular average weight, ok. Then they say that given an overgrip (which I see testers use on video) an say 15 oz. Vokol Cyclone red (Chris points out the different weights according to darkness of color), then we would be told the truth. Until then, the strung weight and swingweight on the website lies to all us. In my case resulting in a demo I loved, then order two rackets totally different and not playable.
 
Tourna Big Hitter Silver 7 Tour 125= 15.5gr
This. I can't provide exact numbers but 1.5-2g lighter than MSV Focus Hex silber 1.23mm in an Ezone 98. The set is also lighter than a Set of Head lynx tour 1.20mm champagne.
Of you open to that kind of string it's one of the best (maybe the best) in reducing Swingweight without going to thin for once linking in gauge or choosing a string which lacks tension maintanace/playability duration.
 
YES, further proof we are being lied to by TW. Mark Boone could have nipped my issue in the bud years ago, but chose to be a total jerk instead. And if he has any management responsibilities, he is partly responsible for these lies TW feeds us regarding weight of rackets, including sting material, gauges, grip sizes. The "strung weight" is not what TW quotes. If they said that an L3/ or 4 3/8 racket unstrung is listed from the factory at x grams/ounces, and once plastic/cardboard are removed, we found this particular average weight, ok. Then they say that given an overgrip (which I see testers use on video) an say 15 oz. Vokol Cyclone red (Chris points out the different weights according to darkness of color), then we would be told the truth. Until then, the strung weight and swingweight on the website lies to all us. In my case resulting in a demo I loved, then order two rackets totally different and not playable.
I also think their specs are misleading, but given all the possible variances in grip size affecting weight etc, what do you propose as the solution? Also, it doesnt help that now even with matching service you dont get told all the specs, they just select the closest to specified i believe. All in all, i do think that they are obscuring the process to make more money via matching and rebuying.

Another thing that plays into their hand is the OCD and precision seeking of forum members, promoted by a few guys, when in reality these minimal spec differences are exagerated in our heads only when we find out the measurement. (placebo) Up to 2.5% difference in swingweight wasnt noticed by college players, thats plus minus 8sw from 320. So, is there even need to match perfectly, considering even the swingweight machine can be inconsistent as it is affected by temperature and humidity a bit, and needs to be calibrated often?

It certainly makes for a good debate.
 
Up to 2.5% difference in swingweight wasnt noticed by college players, thats plus minus 8sw from 320.
I saw this mentioned in an old thread a while ago but could not find the study. The findings sound reasonable to me but I would like to read it myself. Do you know who did it?
 
I saw this mentioned in an old thread a while ago but could not find the study. The findings sound reasonable to me but I would like to read it myself. Do you know who did it?
I could only find it as a summary behind a paywall, in the past i used the wayback machine and a certain website to access the whole paper, but unfortunately i forgot the domain. In the summary it says exactly what i said. Here it is:
 
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