Category Archives: Technology

String Evaluation Program

Racquet Quest, LLC has for years been doing the extensive evaluation of racquets and string for the benefit of our client’s customization requirements.

Now we are making this evaluation “program” available to anyone that wants to dig deeper into the workings of the string in the racquet!

This is serious stuff and requires significant resources but it is worth it!

Please contact us of you would like to take advantage of our evaluation program!

Take a look at the String Evaluation Program!

 

 

Prince Vortex 300

The new Prince Vortex design is a new offering of an older string pattern with 14 main strings and 21 cross strings in a variable taper beam…whew!  You can see by the throat design that the main strings are longer that a conventional throat design.  The longer the main strings the more energy they can return…sort of, and in some cases!

Vortex 300

The beam starts at the grip with a strong 25mm then tapers into a 23mm at the throat and then back to 25mm at the tip.  Do not let the beam dimensions fool you!  The RDC flex of 59 after stringing is quite acceptable for most every player style.

We have been taking coefficient of friction (COF) data for years  but have not included it this review format, until now.  The 14×21 string pattern is unique enough that it is worth including.  You will see the numbers on the review specs so we won’t go into them now, however the numbers are interesting.

The 14 main strings contribute to a very “open” area right about where most extreme “spin” shots are hit according to our data of string failure positions.

The frame geometry is sort of “Aero” like.  The shaft is trapezoidal that transitions into a “reverse” trapezoid around the head.  It makes the racquet look stiffer than it is!

Take a look at the specs then pick up a demo to see what the numbers mean to you!

ManufacturerPrince
Racquet ModelPrince Vortex 300
Reference Tension56 lbs - 25.4kg
String
Victrex 7718
Machine UsedTrue Tension Professional
Static
ASPS, RDC45
ASPS, FlexFour58.5
Racquet Flex, RDC59 - After stringing
Racquet Flex, FlexFour40.0
Racquet - In Plane Stiffness526.3 lbs/Inch
Weight, Grams322
Weight, Ounces11.36
Balance, mm320
Balance, Inch12.60
Length, Cm68.6
Length, Inch27.008
Head Width9.94
Head Length12.94
Head Area, cm2652
Head Area, Sq. Inch101.1
Number of Main Strings14
Number of Cross Strings21
Ratio Cross/Mains.512
Main String Grid7.30
Cross String Grid9.50
Density (% of head filled with string).686
Average Cross String Space.452
Average Main String Space.521
Dynamic
Dynamic Tension, Kp, ERT32
Dynamic Tension, Lbs/in176.98
First Moment, Nm.790
Polar Moment336
Torsional Stability17
Swing Weight, Kg/cm2319
Swing Weight, Ounces11.25
Swing Weight Calculated329.7
Power, RDC47
Control, RDC52
Manueverability, RDC74
Power, Calculated 1921.1
Head Points7.24
Head Weight, %46.6
Center of Percussion21.7
Dwell Time, ms9.48
Efective Stiffness - lbs30.2
K, Lb/In144.23
Recoil Weight165.41
Twist Weight237.56
End Weight 134.5
Tip Weight 189.0
9 O'Clock96.2
3 O'Clock96.1
Butt Cap131.4
Coefficient of Friction: M.400
Coefficient of Friction: X.262

 

 

Prince RipStick 300

I am not saying the is not a serious tennis racquet but the first descriptor that come to mind is “fun”! And who does not want to have a little fun while playing tennis, huh?

RipStick 300


This is one of the remaining racquets with the “O” Port technology which is very large string openings instead of small grommet holes. The design allows for much more string movement and the 16×18 string bed helps!  The “O” Ports create an effective head size of 105 in a racquet that measures 100 square inches.

But, just look at those colors!  I think they are awesome!

This is a constant taper beam starting at 22.5mm going up to 27mm so if you are “thin beam” person you may hesitate to hit with this racquet, but we think you may be missing out!

If you just look at the racquet you may think it to be quite stiff.  That is not the case!  With an RDC stiffness of 62 after stringing we arrive at an effective stiffness of 30.2 with this string setup.  Not bad!

Take a look at the specs then come get the demo and see what all these numbers mean to you!

ManufacturerPrince
Racquet ModelPrince RipStick 300
Reference Tension60 lbs - 27.2kg
String
Prince Premier 16
Machine UsedTrue Tension Professional
Static
ASPS, RDC59
ASPS, FlexFour64.5
Racquet Flex, RDC62 - After stringing
Racquet Flex, FlexFour46.6
Racquet - In Plane Stiffness504.2 lbs/Inch
Weight, Grams328
Weight, Ounces11.57
Balance, mm323
Balance, Inch12.72
Length, Cm68.6
Length, Inch27.008
Head Width10.00
Head Length12.87
Head Area, cm2645
Head Area, Sq. Inch100.1
Number of Main Strings16
Number of Cross Strings18
Ratio Cross/Mains.694
Main String Grid7.56
Cross String Grid9.12
Density (% of head filled with string).679
Average Cross String Space.531
Average Main String Space.469
Dynamic
Dynamic Tension, Kp, ERT36
Dynamic Tension, Lbs/in201.35
First Moment, Nm.814
Polar Moment337
Torsional Stability17
Swing Weight, Kg/cm2320
Swing Weight, Ounces11.29
Swing Weight Calculated342.2
Power, RDC43
Control, RDC58
Manueverability, RDC73
Power, Calculated 2095.5
Head Points6.14
Head Weight, %47.2
Center of Percussion21.2
Dwell Time, ms8.28
Efective Stiffness - lbs30.2
K, Lb/In189.10
Recoil Weight159.2
Twist Weight256.05
End Weight 134.9
Tip Weight 194.5
9 O'Clock100.8
3 O'Clock97.3
Butt Cap130.2

 

 

 

Prince Phantom 107G!

Prince!  What can you say about the brand that “normalized” over sized racquets!

So, instead of talking about “what was” we will talk about “what is!”  And “what is” is exciting, I think!  With so many really good tennis racquets to choose from why would you choose a Prince racquet?  With this review we will explore the reasons you may want to consider it!

THE PRINCE PHANTOM 107G

Prince Phantom 107G

If this racquet had a high gloss finish and some green lines instead of the current matt finish you could not tell it from the original Prince Graphite.  In other, words it looks terrific.

The beam tapers slightly from about 17.5mm at the top of the grip up to about 21mm at the tip, but by just looking you would say it is a straight  beam design.  The proportions of the racquet are “classic” and the “torsion bar” in the throat contributes to that classic look.

And speaking of classic, the grip shape and the “torsion resistance system” at the 10 and 2 o’clock positions are classics!

So, take a look at the other specs of this racquet and if you like what you see come by at take it for a “demo”

ManufacturerPrince
Racquet ModelPrince Phantom 107G
Reference Tension58 lbs - 26.3 k2
String
Victrex 224
Machine UsedTrue Tension Professional
Static
ASPS, RDC50
ASPS, FlexFour62
Racquet Flex, RDC61 - After stringing
Racquet Flex, FlexFour51
Racquet - In Plane Stiffness425.5 lbs/Inch
Weight, Grams333
Weight, Ounces11.75
Balance, mm324
Balance, Inch12.76
Length, Cm68.6
Length, Inch27.008
Head Width10.25
Head Length13.25
Head Area, cm2688.4
Head Area, Sq. Inch106.7
Number of Main Strings16
Number of Cross Strings19
Ratio Cross/Mains.652
Main String Grid8.00
Cross String Grid10.43
Density (% of head filled with string).783
Average Cross String Space.550
Average Main String Space.500
Dynamic
Dynamic Tension, Kp, ERT33
Dynamic Tension, Lbs/in184.57
First Moment, Nm.830
Polar Moment342
Torsional Stability17
Swing Weight, Kg/cm2325
Swing Weight, Ounces11.46
Swing Weight Calculated349.6
Power, RDC53
Control, RDC49
Manueverability, RDC70
Power, Calculated 2136.6
Head Points5.98
Head Weight, %47.2
Center of Percussion21.1
Dwell Time, ms9.00
Efective Stiffness - lbs27.5
K, Lb/In160.26
Recoil Weight160.29
Twist Weight260.14
End Weight 135.5
Tip Weight 197.2
9 O'Clock98.4
3 O'Clock100.2
Butt Cap133.2

 

New KT Tape Products!

KT Tape is probably the most recognized gear any athlete can wear! You see it on many world-class athletes typically placed where they may be experiencing discomfort or want to reduce the possibility of such!

Racquet Quest has added three (3) new KT Tape products we believe are essential to better performance.

The new Wave:

  • Clinically proven and FDA cleared device for relief of chronic musculoskeletal pain
  • 250 hours of battery life for consecutive or intermittent use
  • Sensation-free electromagnetic pulses that are safe and effective
  • Flexible loop is easy to place
  • Water resistant, safe to wear during regular physical activity and during sweating

 

 

 

 

The new Chafe Safe:

 

  • Protects friction-prone areas from blisters & hot spots for up to 24 hours
  • Sweat & water resistant
  • Mess-free, non-sticky, & smooth application
  • No clogging of pores

 

 

 

 


The new Anti Blister tape:

  • Designed to help prevent athlete blister, chafing, and hot spot formation*
  • Ultra-durable, flexible, and breathable synthetic fabric
  • Easily conforms to skin and extremely thin to minimize friction
  • Precut 3.5” strips for convenient use in most common treatment areas
  • KT Tape is proud to provide the KT PERFORMANCE + and KT RECOVERY + product lines, supporting athletes of all levels and helping them to perform at their best. Train longer, finish stronger

 

These important products contribute to Racquet Quest’s commitment to keeping our clients playing comfortably forever!

If you are new to KT Tape just click here and you will go to the very comprehensive “how to” page!