Category Archives: Patterns

Tecnifibre TF 40 305

As you know Racquet Quest is always interested in racquet models from any brand and while Tecnifibre is not a new brand it is, in my opinion, just beginning to gain traction in this market.

Tecnifibre has always been associated with some of the best multi-filament strings available.

The racquet we are reviewing today is the Tecnifibre TF 40, 305 gram version.  I would place this racquet in the “player” category, if you believe in such categories, and the 21.7mm beam confirms where most “players” find themselves. The 18×20 string pattern also contributes to the categorical placement.

There is a 305 gram version of the TF 40 and a 315 gram version both having the 18×20 string pattern.  I believe there needs to be a 16×19 string pattern to complete the TF 40 series.

The TF 40 series is a no-frill approach to racquets.  The red, white, blue, and black graphics look good as does the “knurled” outer surface of the racquet head.

Take a look at the “play ready”, string, overgrip, vibration damper, specifications below to see how it stacks up, then come by and try it!

Racquet ModelTecnifibre TF 40 305
Reference Tension53 lbs - 24.9 kg
Tecnifibre HD MX 16
Machine UsedTrue Tension Professional
ASPS, FlexFour69.5
Racquet Flex, RDC60 - After stringing
Racquet Flex, FlexFour43
Racquet - In Plane Stiffness376.3 lbs/Inch
Weight, Grams329
Weight, Ounces11.61

Balance, mm332
Balance, Inch13.07
Length, Cm68.6
Length, Inch27.008
Head Width9.57
Head Length12.86
Head Area, cm2623.3
Head Area, Sq. Inch96.6
Number of Main Strings18
Number of Cross Strings20
Ratio Cross/Mains.670
Main String Grid7.625
Cross String Grid10.125
Density (% of head filled with string).786
Average Cross String Space.506
Average Main String Space.417
Dynamic Tension, Kp, ERT39
Dynamic Tension, Lbs/in218.3
First Moment, Nm.846
Polar Moment337
Torsional Stability16
Swing Weight, Kg/cm2321
Swing Weight, Ounces11.32
Swing Weight Calculated362.6
Power, RDC41
Control, RDC61
Manueverability, RDC73
Power, Calculated 1879.3
Head Points3.46 (negative = head heavy)
Head Weight, %48.4%
Center of Percussion20.5
Dwell Time, ms8.21
Efective Stiffness - lbs30.0
K, Lb/In192.3
Recoil Weight146.3
Twist Weight226.0
End Weight 127.6
Tip Weight 202.0
9 O'Clock98.7
3 O'Clock100.7
Butt Cap127.8

Head Graphene 360 + Gravity MP

The new Head Gravity MP seemed like the perfect place to start with this new series of racquets so that is what we did!

We believe this racquet falls between the Prestige and Radical series and will appeal to more players than either of those.  Plus, there are two (2) 104 square inch models, the Lite, and S.  These are relativley “thin” beam, (Lite and S = 24.4mm) racquets that Head has been missing, in my opinion, for a while.

It has a “flip” color scheme…one side is lava and the other is Miami Green (my word).


Head Graphene 360 + Gravity MP Lava Side

The head shape is a little more round.  The weight is 312 grams (11.01 oz) which I think is a little light.  The swing weight is 324 kg/cm² ( a good starting point).

The unique fiber layup is designed to “uncoil” at impact contributing to a new kind of power, and hopefully comfort.

The unique fiber layup is designed to “uncoil” at impact contributing to a new kind of power, and hopefully comfort.

The Series consists of a “Pro”, “MP”. “MP Lite”, “S”,  and”Lite”.  There is a Model Comparison post where you can see all of the racquets in one place.

Racquet ModelHead Graphene 360 + Gravity MP
Reference Tension55 lbs - 24.9 kg
MonoGut ZX Pro
Machine UsedTrue Tension Professional
ASPS, FlexFour60.5
Racquet Flex, RDC59 - After stringing
Racquet Flex, FlexFour43
Racquet - In Plane Stiffness380.1 lbs/Inch
Weight, Grams312
Weight, Ounces11.01

Balance, mm342
Balance, Inch13.46
Length, Cm68.6
Length, Inch27.008
Head Width9.92
Head Length12.85
Head Area, cm2645.9
Head Area, Sq. Inch100.1
Number of Main Strings16
Number of Cross Strings20
Ratio Cross/Mains.617
Main String Grid7.62
Cross String Grid10.30
Density (% of head filled with string).798
Average Cross String Space.515
Average Main String Space.476
Dynamic Tension, Kp, ERT35
Dynamic Tension, Lbs/in195.7
First Moment, Nm.833
Polar Moment340
Torsional Stability16
Swing Weight, Kg/cm2324
Swing Weight, Ounces11.43
Swing Weight Calculated364.9
Power, RDC46
Control, RDC56
Manueverability, RDC71
Power, Calculated 1932.8
Head Points.31
Head Weight, %49.9%
Center of Percussion20.8
Dwell Time, ms8.82
Efective Stiffness - lbs27.6
K, Lb/In166,7
Recoil Weight143.69
Twist Weight229.04
End Weight 114.6
Tip Weight 200.3
9 O'Clock99.2
3 O'Clock99.4
Butt Cap114.9

String Bed Stiffness – A Short Video

It is raining today and it felt like a good time to talk about “string bed stiffness”…so let’s go!

This quick video will make a plea to you tennis players to demand more from your racquet technician so you are getting the most from your equipment.

Thank you for watching!

Dr. Goodman visits the World Headquarters!

We were thrilled to have Dr. Brad Goodman visit the World Headquarters to produce a session for his Doc-Talk-Live program!

Dr. Goodman is a tennis player who wants to know more about equipment in an effort to protect his body and beat his opponents.  You can catch this episode here: Doc Talk Live

In addition to the session Dr, Goodman was given the opportunity to “stretch” both a very stiff string and a very “stretchy” string, something that he, and many others, have not done.  Needless to say he was amazed at the difference.

Dr, Goodman’s visit was a great opportunity to have a real conversation about tennis equipment.  Please let me have your comments!


Head Graphene 360 Radical PWR

Head Graphene 360 Radical Series

As you would expect “PWR” means power! With a calculated power factor of 2294.7 that is true! You can see by the picture above that the PWR has a slightly larger head size (109.9 square inch) and a reasonable beam of 26/25/23 which contributes to a racquet stiffness of 65.

Head Graphene 360 Radical PWR

Head PWR 14 x 19 String Pattern

Unique to the PWR series of Head racquets this racquet can be either a 16 x 19 or 14 x 19 string pattern by replacing the top grommets with the included grommet set.

This format creates a “fan pattern” that makes the upper portion of the string bed very “open”.









This is a picture of last yesrs model. Whichever pattern you choose you will be presented with plenty of power…PWR!





Racquet ModelGraphene 360 Radical PWR
Reference Tension60 lbs - 30.6 kg
Head Velocity MLT 17 Pink
Machine UsedTrue Tension Professional
ASPS, FlexFour59
Racquet Flex, RDC65 - After stringing
Racquet Flex, FlexFour42
Racquet - In Plane Stiffness310.9 lbs/Inch
Weight, Grams284
Weight, Ounces10.02
Balance, mm350
Balance, Inch13.78
Length, Cm69.5
Length, Inch27.362
Head Width9.99
Head Length14.00
Head Area, cm2708.8
Head Area, Sq. Inch109.9
Number of Main Strings16
Number of Cross Strings19
Ratio Cross/Mains.601
Main String Grid8.20
Cross String Grid10.90
Density (% of head filled with string).814
Average Cross String Space.574
Average Main String Space.513
Dynamic Tension, Kp, ERT34
Dynamic Tension, Lbs/in190.16
First Moment, Nm.780
Polar Moment328
Torsional Stability16
Swing Weight, Kg/cm2312
Swing Weight, Ounces11.01
Swing Weight Calculated347.9
Power, RDC51
Control, RDC51
Manueverability, RDC79
Power, Calculated 2294.7
Head Points-0.79 (negative is head heavy)

Head Weight, %50.4%
Center of Percussion21.2
Dwell Time, ms8.82 Ms - No Swing
Efective Stiffness - lbs28.9
K, Lb/In166.67
Recoil Weight136.76
Twist Weight211.39
End Weight 96.7
Tip Weight 187.8
9 O'Clock93.6
3 O'Clock98.1
Butt Cap92.5
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