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Head Auxetic 2 Radical Pro 2025

The Radical Pro represents the pinnacle of a player’s racquet. So, this review is based on our desire to see how much power we can squeeze out of it through string bed stiffness.

The following specifications explain why this racquet’s natural properties make it a powerhouse.

This 98-square-inch racquet packs a powerful 339-gram weight with a very easy-to-handle 331 swing weight!

With this racquet, you will not be pushed around by big hitters.

As tested, this racquet has a stiffness rating of 66, which is moderately high. However, with an effective stiffness of 27.1, it is well within the range of any player who can benefit from the other performance factors.

As you can tell from the picture, the racquet is ORANGE.  These pictures are the skills of Bobby Diviliansky, a high school student who just happened to stop at the World Headquarters!  His brother Ryan is a client, so he had a reason to be here.

ManufacturerHead
Racquet ModelHead PT57A2 Auxetic Coat - No Grip Pallet
Reference Tension
String
Machine Used
Static
String Bed Stiffness - RDC
String Bed Stiffness -FlexFour
Strig Bed Stiffness - SBS
String Bed Stiffness - ERT
Racquet Flex, RDC,No Pallet62
Racquet Flex, FlexFour, No Pallet57
Racquet - In Plane Stiffness462.2
Weight, Grams255.6
Weight, Ounces9.016
Balance, mm354
Balance, Inch13.94
Length, Cm68.2
Length, Inch26.850
Head Width9.437
Head Length12.748
Head Area, cm^2611.3
Head Area, Sq. Inch94.75
Beam Height @ Grip, mm21.1
Beam Height @ Mid, mm20.3
Beam Height @ Tip20.3
Beam Width @ Grip, mm11.0
Beam Width @ Throat, mm11.0
Beam Width @ Mid, mm11.7
Beam Width @ Tip, mm11.5
Number of Main Strings18
Number of Cross Strings20
Ratio.634
Main String Grid Inch/mm7.18/182.3
Cross String Grid Inch/mm9.51/241.5
Density (% of head filled with string)
Average Cross String Space
Average Main String Space
Dynamic
Dynamic Tension, Kp, ERT
Dynamic Tension, Lbs/in
First Moment, Nm
Polar Moment
Torsional Stability
Swing Weight, Kg/cm^2285
Swing Weight, Ounces
Swing Weight Calculated318.5
Power, RDC
Control, RDC
Manueverability, RDC
Power, Calculated
Head Points
Head Weight, %
Center of Percussion
Dwell Time, ms
Efective Stiffness - lbs
K, Lb/In
Recoil Weight
Twist Weight
End Weight 81.2
Tip Weight 177.6
9 O'Clock87.2
3 O'Clock87.9
Butt End88.1
COF, Main
COF, Cross