Tecnifibre · Polyester

Tecnifibre Black Code

Pentagonal co-polyester with Thermocore technology

Log this string Compare Data verified January 2025
Price per set$12–16USD, typical retail
Gauges16, 17, 18Black, Fire (Orange), Lime
StiffnessmediumPolyester
Junior minimum age13+intermediate, advanced

Performance ratings

Power 6
Spin 8
Control 8
Comfort 7
Durability 8
Tension hold 6

Overview

Tecnifibre Black Code is a co-poly with pentagonal profile for spin and Thermocore technology for comfort. "Dangerous in the hands of an aggressive baseliner who likes to control the point with heavy spin." The 5-sided profile provides powerful snapback for spin generation while Thermocore uses heating and cooling phases to soften the string. Playtesters found it "soft, plush and very comfortable for a polyester string" with muted impact feel that doesn't send jarring vibrations on off-center hits. Great value shaped poly.

Best for

  • Aggressive baseliners who control points with heavy spin
  • Players wanting shaped poly comfort
  • Big hitters who swing hard
  • Those transitioning to polyester

Not ideal for

  • Maximum spin seekers (Black Code 4S better)
  • Power seekers
  • Flat hitters

Pros

  • Soft and comfortable for a polyester
  • Good spin from pentagonal profile
  • Excellent control (8/10)
  • Thermocore adds comfort
  • No arm issues even strung high
  • Good value

Cons

  • Fairly low power
  • Some tension loss reported
  • Not maximum spin (4S version better)
  • Launch angle can be slightly erratic

Stringer notes

Good entry-level shaped poly. Thermocore makes it more comfortable than most. Fire color is popular.

Break-in period

1-2 hours.

When to replace

Every 12-15 hours.

Hybrid setup ideas

  • Works well as full bed
  • Multifilament crosses for extra comfort

Used by

Popular with club and college players

Specifications

Type
Polyester
Construction
Pentagonal co-polyester with Thermocore technology
Gauges
16, 17, 18
Colors
Black, Fire (Orange), Lime
Set price
$12–$16
Reel price
$130–$160
Brand
Tecnifibre (France)

Sources & reviews

Data verified January 2025. Something wrong? Send a correction.