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keen
A concentrate of technology, incredibly strong and responsive.
String Project Keen is designed to be a thin yet equally durable monofilament, available in gauges of 1.13mm, 1.18mm, and 1.22mm.
Its blend is a concentrate of research and technology, composed of various materials that make Keen incredibly solid and responsive.
String Project Keen
String Project Keen
String Project Keen
On-court performance
Keen is a tennis string with excellent spin and power generation capabilities during gameplay, while maintaining a natural connection with the ball.
Keen is a solid monofilament despite its thin gauge and maintains an excellent level of comfort to ensure maximum arm protection.
Characteristics
Section
Circular
Calibers
1,13 (18) | 1,18 (17) | 1,22 (16L)
Parameters detected in lab through tests performed by Pro-t-one property of engineer G. Medri.
Lab Test
Dynamic Stiffness
228 g/mm
Stress Range
18 / 22 Kg
Download the PDFs of the laboratory tests:
Production Processes
Multiple Heating
“Heating treatments” remove internal stress and align string’s potential irregularities. Moreover, they make strings more flexible and elastic.
Liquid Wax
The string is perfected with a wax layer. This treatment extends the duration substantially reducing the wear and making stringing easier.
Low Friction
String’s Friction’s decrease offers: diminished strings’ motion, greater potential spin due to greater snap back and a lasting duration.
Spring Load
This technology allows molecules’ chains to twitch several times resulting a loss of minimal tension and, above all, keeping a higher feature’s steadiness.
Prices
1 stringing
Single Set
€ 12,90
€
12
90
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
3 stringings
3 Sets Pack
€ 38,70
€
29
90
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
6 stringings
6 Sets Pack
€ 77,40
€
53
90
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
About 17 stringings
200 meters Bundle
€ 149,00
€
109
00
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
Expert’s Reviews
Blogs
Ubi Tennis
ubitennis.com
The string is immediately recognizable for its qualities referring to the response to the contact with the ball during impacts. It only takes few minutes to figure its positive aspects out : impacts’ softness along with the sensation of mastering the ball. On a control-oriented frame like Wilson Blade, the string performances much better than other models.
keen
A concentrate of technology, incredibly strong and responsive.
String Project Keen is designed to be a thin yet equally durable monofilament, available in gauges of 1.13mm, 1.18mm, and 1.22mm.
Its blend is a concentrate of research and technology, composed of various materials that make Keen incredibly solid and responsive.
How does it perform on the court
Keen is a tennis string with excellent spin and power generation capabilities during gameplay, while maintaining a natural connection with the ball.
Keen is a solid monofilament despite its thin gauge and maintains an excellent level of comfort to ensure maximum arm protection.
Characteristics and Lab Test
Parameters detected in lab through tests performed by Pro-t-one property of engineer G. Medri.
Section
Circular
Calibers
1,13 (18) | 1,18 (17) | 1,22 (16L)
Dynamic Stiffness
228 g/mm
Stress Range
18 / 22 Kg
Download the PDFs of the laboratory tests:
Production Processes
Multiple Heating
Multiple Heating
“Heating treatments” remove internal stress and align string’s potential irregularities. Moreover, they make strings more flexible and elastic.
Liquid Wax
Liquid Wax
The string is perfected with a wax layer. This treatment extends the duration substantially reducing the wear and making stringing easier.
Low Friction
Low Friction
String’s Friction’s decrease offers: diminished strings’ motion, greater potential spin due to greater snap back and a lasting duration.
Spring Load
Spring Load
This technology allows molecules’ chains to twitch several times resulting a loss of minimal tension and, above all, keeping a higher feature’s steadiness.
Prices
1 Set
3 Sets
6 Sets
200 mt
1 stringing
Single Set
€ 12,90
€
12
90
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
3 stringings
3 Sets Pack
€ 38,70
€
29
90
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
6 stringings
6 Sets Pack
€ 77,40
€
53
90
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
About 17 stringings
200 meters Bundle
€ 149,00
€
109
00
*choose caliber later
Free shipping
1 anti-vibration item
2X Overgrip Dry Pack
Expert’s Reviews
Blogs
Ubi Tennis
ubitennis.com
The string is immediately recognizable for its qualities referring to the response to the contact with the ball during impacts. It only takes few minutes to figure its positive aspects out : impacts’ softness along with the sensation of mastering the ball. On a control-oriented frame like Wilson Blade, the string performances much better than other models.