Tier One Sports Black Knight - Co-Poly Tennis String for The High Performance Player (Set - Black, 18 Gauge (1.18 mm) - 12,2 m Set)
Key features
- •What makes this 6 sided co-poly string so truly special is that although, it is very soft/arm-friendliness (based on USRSA lab results), it holds tension extremely well (based on USRSA lab results), offers outstanding durability AND provides the high level player with precise depth and directional control. It is common thought to assume that the string would respond very "springy" and loses tension quickly due to its softness. Quite to the contrary, this is one of the string's strengths!
- •KEY FEATURES: Great directional and depth control, exceptional durability, access to spin, arm-friendly.
- •RECOMMENDED PLAYING LEVEL in 16 gauge: NTRP: 5.0-7.0, UTR: 9-16+ (advanced - pro level)
- •RECOMMENDED PLAYING LEVEL in 17 gauge and 18 gauge: : NTRP: NTRP: 3.0-5.0, UTR: 2.5-9.5 (intermediate - advanced level)
- •LENGTHS: Sets: 12.2mm/40ft, Reels: 200m/656ft, GAUGES: 16g (1.28mm). 17g (1.23mm), 18g (1.18mm), COLOR: Black.
Tier One Sports Black Knight - Co-Poly Tennis String for The High Performance Player (Set - Black, 18 Gauge (1.18 mm) - 12,2 m Set)
List Price: $21.32$19.19DEALYou Save: $2.13 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (2)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.3
out of 5
Based on 9 reviews
5★
78%
4★
22%
3★
0%
2★
0%
1★
0%
Quality string for a great price!
John Thomas✓ Verified Purchase•December 8, 2023
After testing numerous strings, it always brings me back to Black Knight. At 50lbs. this string feels perfectly balanced in power and control. Great access to spin and an arm-friendly response makes this my go-to string.
This has become my favorite string
Mario Scherhaufer✓ Verified Purchase•December 4, 2023
After playing with hyper g for almost a year, I tried a set of Black Knight and fell in love with it. Great performance on all levels!
Nice power and control without elbow or shoulder irritation
William Edward Cutlip✓ Verified Purchase•December 4, 2023
The 18 gauge provides a nice feel from the baseline and at the net as well as solid power (I go with 52-55# tension with a Yonex VCORE 100). You can't beat the Tier One Customer Service! They are "Aces" ;-)
Great string!
Matthew Wright✓ Verified Purchase•November 11, 2023
Incredible string!
I used to play in college and I love this string. It gives me enough power to put the ball away. High durability and tension stability is amazing. It has been about 7-8 hours and I don't see any performance loss yet! Great string!
I used to play in college and I love this string. It gives me enough power to put the ball away. High durability and tension stability is amazing. It has been about 7-8 hours and I don't see any performance loss yet! Great string!
Advanced players string
Steven Grubbs✓ Verified Purchase•November 9, 2023
Fantastic string for the price with great bite. A very nice balance of control, power, and durability for advanced players. If you are not an advanced player look elsewhere.
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