Ashaway’s new and improved UltraKill 16

September 30, 2013

Ashaway, RI — Ashaway Racket Strings has introduced a new and improved version of its popular UltraKill® 16 string for racquetball. Effecting what Ashaway describes as a “revolution in racquetball string technology,” the new UltraKill 16 utilizes a combination of Zyex® filaments and a new Power Filament Technology™ (PFT™) design. The result is a string that maximizes durability, provides superior power, and maintains tension better than kindred strings.

Said Ashaway’s Steve Crandall: “UltraKill 16 with PFT is a significant advance in string technology for racquetball that will allow players to push their game to the limit. What we’ve done with PFT is create an entirely new surface element of Zyex filaments in the jacket of the string that increases ball control and spin, and optimizes power. It also enhances loop strength to reduce frame breakage.”

Ashaway has long been a leader in developing racket sport strings based on advanced Zyex filament technology, which has allowed the company to develop a number of different string packages, and offer players a significant level of choice in playing characteristics. In UltraKill 16, the dynamic stiffness of the Zyex filaments increases power and decreases string bed stiffness, while its superior elongation increases resiliency and ball control.

Designed for professional and top level amateur players who need the durability of a heavy gauge string to avoid breakage, but do not want to sacrifice power or ball control, the very thin Zyex filaments in the UltraKill 16 jacket also minimize tension loss for more consistent performance. Bright red in color, UltraKill 16 gauge (1.30 mm) strings are available for all players in 40 ft. sets and 360 ft. reels. Recommended stringing tension is up to 35 lbs., but Ashaway suggests using 10-20% less tension than normally used for standard nylon strings.

Ashaway Racket Strings are made by Ashaway Line & Twine Mfg. Co., the only U.S. manufacturer of string for squash, tennis, racquetball, and badminton. Operated by the Crandall family since 1824, Ashaway has been making racquet strings since 1949, and is responsible for several important technical innovations. Ashaway has been the Official String of USA Racquetball for more than ten years. Ashaway Line & Twine Mfg. Co. also makes braided products for medical and industrial applications. For more information visit