spin | reactivity

keen

A concentrate of technology, incredibly solid and reactive
[rwp_box_recap id="0" post="4661"]

* user evaluation. Check out all the reviews

Keen is the narrowest string created by String Project. The cobalt-blue exterior hides a very narrow section, 1.18 mms and 1.13 mms, but just as strong as any other.

The composition is a concentrated technological blend, a mixture of 5 different materials that make it incredibly solid and reactive after a snapback.

arm friendly sp
keen trasparente
String Project Keen Set Pack 3

On Court

With its sensitive and powerful qualities, Keen increases the ability for spinning during the game, creating a natural connection with the ball and multiplied effect of power and rotation.

Its narrow calibre gives the right feel to tame thrust and to perceive the ball at its best when on the head of the racket, with a notable natural control over the direction of the shot.

Slender but enduring, Keen yields very well on control-based rackets and manages to enhance and simplify the player’s performance when in use.

Soft and elastic it also manages to protect the arm on impact.

Features

Section

Circular

Caliber

1,13mm (18L)
1,18mm (18)
1,22mm (17)

Static Stiffness 15-20 Kg

0,80 Kg/mm

Static Stiffness 20-25 Kg

0,80 Kg/mm

Static Stiffness 25-30 Kg

0,75 Kg/mm

Power
8
Control
7,5
Tension
7
Comfort
8,5
Resilience
8,5
Spin
9

Buy Now

Single Set
1 Single Stringing
12.90

*scegli il calibro in seguito

  • 1 Single Stringing

  • Free Shipping

  • 1 Damper

  • Pack of 2x Overgrip Dry

Pack of 3 Sets
3 Single Stringing
€38.7029.90

*scegli il calibro in seguito

  • 3 Single Stringing

  • Free Shipping

  • 1 Damper

  • Pack of 2x Overgrip Dry

Pack of 6 Sets
6 Single Stringing
€77.4053.90

*scegli il calibro in seguito

  • 6 Single Stringing

  • Free Shipping

  • 1 Damper

  • Pack of 2x Overgrip Dry

Recommended

Reel of 200mt
about 17 Single Stringing
€139.00109.00

*scegli il calibro in seguito

  • About 17 Single Stringing

  • Free Shipping

  • 1 Damper

  • Pack of 2x Overgrip Dry

Lab Tests

Parameters detected in the laboratory by tests carried out by Pro-t-one of Ing. G. Medri:

Download PDF Tests

Static Stiffness 10-15 Kg

1,15 Kg/mm

Static Stiffness 20-25 Kg

0,80 Kg/mm

Dinamic Stiffness

228 g/mm

Static Stiffness 15-20 Kg

0,80 Kg/mm

Static Stiffness 25-30 Kg

0,75 Kg/mm

Best Range Tension

18-22 Kg

The production processes

we use the best manufacturing processes for all our strings
Multiple Heating
"Heat treatments" eliminate internal stresses and smooth out any irregularities in the rope. It also makes the strings more flexible and elastic.
Liquid Wax

Once manufacture is complete the string is refined with a layer of wax. This layer simplifies stringing the racquet and significantly extends the life of the string itself by reducing wear.

Low Friction

The reduction in rope friction offers: reduced string movement, greater potential spin thanks to greater snap back, and a longer duration.

Spring Load

This technology enables the molecule chains of a monofile string to contract again, resulting in minimal tension loss and increased stability of playing properties as well as increased arm protection.

Multiple Heating

"Heat treatments" eliminate internal stresses and smooth out any irregularities in the rope. It also makes the strings more flexible and elastic.

Liquid Wax

Once manufacture is complete the string is refined with a layer of wax. This layer simplifies stringing the racquet and significantly extends the life of the string itself by reducing wear.

Low Friction

The reduction in rope friction offers: reduced string movement, greater potential spin thanks to greater snap back, and a longer duration.

Spring Load

This technology enables the molecule chains of a monofile string to contract again, resulting in minimal tension loss and increased stability of playing properties as well as increased arm protection.

Previous
Next

Expert Reviews

The Blog

Ubi Tennis
Ubi Tennisubitennis.com
Read More
La corda si fa sentire subito per le ottime qualità di tocco, e cioè di contatto con la palla durante gli impatti. Bastano pochi minuti di gioco per avere subito le prime sensazioni positive: la morbidezza degli impatti unita alla sensazione di avere il pieno controllo di palla è subito il primo risultato. Su un telaio molto orientato al controllo di palla come la Wilson Blade, la corda rende molto meglio rispetto a modelli profile Leggi la recensione completa >

User Reviews

Within this section you will find the media and reviews of users who have purchased and tried our strings.
You can also release your review directly from the form below.
[rwp_box_recap id="0" post="4661"]
[rwp_box_reviews id="0" post="4661"]
[rwp_box_form id="0" post="4661"]
keen trasparente
Logo StringProject 258x70 footer

keen

A concentrate of technology, incredibly solid and reactive