Tier One Sports Black Knight - Co-Poly Tennis String for The High Performance Player (Set - Black, 17 Gauge (1.23 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, 17 Gauge (1.23 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 (1)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%
Advanced players string
Steven Grubbs✓ Verified Purchase•November 23, 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.
Nice power and control without elbow or shoulder irritation
William Edward Cutlip✓ Verified Purchase•November 18, 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" ;-)
Just a great string
Music Critic✓ Verified Purchase•November 17, 2023
I got this along with a package of Firewire for a Yonex vcore L. I had intended to use the firewire, but after trying both, I found I played better with the black knight. It's more comfortable, and I expected that, but I also found I had better control with it, which I did not expect. I'm sticking with the black knight.
This has become my favorite string
Mario Scherhaufer✓ Verified Purchase•October 3, 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 String
Steven Johnson✓ Verified Purchase•October 2, 2023
I have used this as a main string in a few racquets, different gauges depending on the string pattern. Thicker gauge for 16x19 and thinner gauge for 18x20. In both variations I used their Ghost Wire as the crosses in the same thickness. This combo has worked very well in each racquet I put it in and I will continue to purchase it as it is a good buy for the dollar amount.
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