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Holabird Sports

Isospeed Energetic 17 (1.20 mm) Available in: World Rate this string
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 Product Information  Set Price
The tennis string with the energy storage! The energy added during the production process is stored in the string and prevents the unwanted tension loss. This way the strings keep their tension even after months of idle time. Ideal for oversize racquets.  $10.00*
 Available at:  gold
 Type Click here for an explanation of the string types
 Average rating on this site (25 ratings)
Durability Power Control Feel
Comfort Spin Ten.stab. Satisfied
 StringAdjectives (9 ratings)
soft comfortable resilient elastic lively explosive stretchy spongy springy stiff solid crispy precise dull sluggish innovative unique

Colors:   good   bad   average  ¦  Satisfaction = overall satisfaction

25 ratings found. Last rating from 2015-08-22.


Interior of the Isospeed Energetic. The microfibers are bonded in the central strand while the surrounding microfibers are loosely wrapped around. The yellow coating is quite soft and can easily be pulled off the inner white fibers.
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String Archive:

This string has been stored in the String Archive, a collection of 10 inch long pieces of tennis strings. Currently the archive contains 515 different strings (counting the different diameters).

*All prices are mail order prices for one string set without shipping and without stringing costs