Topspin Cyber Blue 17/1.25 String Reel - 722' — image 1
Alpha CPOW17R

Topspin Cyber Blue 17/1.25 String Reel - 722'

Line: Topspin Cyber Blue

$79.90

Reference price as of June 2026 Not a live offer

Offers the same great control and durability as Top Spin Cyber Flash string but with a softer and more dampened feel. Top Spin Cyber Blue (formerly called Cyber Power) offers improved tension maintenance and added comfort over many competing co-polyester strings. The thin 17 gauge offers lots of bite and a livelier feel compared to the 16 gauge version.

String specs

Gauge 17/1.25mm
Length 722ft/220m
Composition Polyester
Color Ice Blue

Where to buy

What players say

Liked 2 sources

Long-running customer feedback on Tennis Warehouse (spanning years of use of this 17-gauge Cyber Blue poly, including this 722' reel) describes it as one of the softer, more arm-friendly polyesters available, with notably strong tension retention. Most players find comfort, control, and spin acceptable to good, though a minority feel it is too muted or dead compared to firmer polys, and a few report elbow or durability issues.

Best for

  • Players wanting a soft, arm-friendly polyester instead of a stiff co-poly
  • Topspin baseliners who prioritize control and tension stability over raw power
  • Players who restring often and want a cost-effective reel
  • Hybrid stringers pairing it with gut or multifilament crosses

Pros

  • Widely described as one of the softer polys available, easier on the arm than typical co-polys
  • Strong tension maintenance that reviewers say holds up over time
  • Good, predictable control and solid topspin response for most players
  • Performs well in hybrid setups, often paired with natural gut or multifilament

Cons

  • Several players call the feel too muted or dead compared to livelier polys
  • Spin and bite can fall short of firmer, shaped strings like Yonex Poly Tour Pro
  • A minority of players reported elbow or shoulder soreness despite its soft reputation
  • Durability is inconsistent, with some reviewers noting it breaks sooner than expected

Voices

It's probably the softest poly string with excellent tension stability with some power and feel.

— Jake, Tennis Warehouse customer review, Web

Cyber Blue is one of the softest polys on the market... but Cyber Blue is the best in tension retention among them.

— Mike, Tennis Warehouse customer review, Web

Very solid string. Good spin and control. Reasonable power...very comfortable on the arm.

— Jason, Tennis Warehouse customer review, Web

Always on the lookout for soft polys so tried this one...can't recommend it over the Yonex PTP. Comfort was OK, less predictable on off-center hits.

— Doc, Tennis Warehouse customer review, Web

Fine quality strings. My only complaint is that they are a little too muted for my taste...probably too soft for me.

— Ron, Tennis Warehouse customer review, Web

This string is just too easy...after 20 minutes felt some elbow tightness then some elbow and shoulder soreness.

— B-UNIT, Tennis Warehouse customer review, Web

Sources

Know what players think before you buy

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