Tecnifibre · Polyester

Tecnifibre Razor Code

High Modulus Polyester Compound with Thermocore technology

Log this string Compare Data verified January 2025
Price per set$14–18USD, typical retail
Gauges16, 17White, Blue, Carbon
Stiffnessmedium highPolyester
Junior minimum age14+advanced, elite

Performance ratings

Power 7
Spin 8
Control 9
Comfort 6
Durability 9
Tension hold 7

Overview

Razor Code is the most resistant and hardest to deform string in Tecnifibre's range. The High Modulus Polyester Compound ensures a firm feel and extreme durability, making it the top pick for performance players and heavy hitters. Thermocore technology brings flexibility despite the rigid material by using heating and cooling phases. Playtesters found excellent control (8/10), good feel (7/10), and surprising power for a 16 gauge co-poly. The Blue version is softer than White with a little more pop. Recommended for rackets over 300g.

Best for

  • Heavy string breakers (extreme durability)
  • Performance players and heavy hitters
  • Those with rackets over 300g
  • Players wanting control with decent comfort

Not ideal for

  • Beginners
  • Arm-sensitive players
  • Light rackets under 300g

Pros

  • Extreme durability - most resistant in Tecnifibre range
  • Excellent control on full swings
  • Good shock absorption and vibration dampening
  • Thermocore technology adds flexibility
  • More comfortable than traditional stiff polys
  • Good spin potential

Cons

  • Not for light rackets or beginners
  • Medium-high stiffness
  • Loses tension by third week
  • Not as spin-focused as shaped polys

Stringer notes

Great durability option. Blue version is softer than White. Recommend for heavy hitters with 300g+ rackets.

Break-in period

1-2 hours.

When to replace

Every 2-3 weeks or when control diminishes.

Hybrid setup ideas

  • Razor Code mains + multifilament crosses
  • Works as full bed for durability seekers

Used by

Daniil Medvedev (formerly), Various ATP players

Specifications

Type
Polyester
Construction
High Modulus Polyester Compound with Thermocore technology
Gauges
16, 17
Colors
White, Blue, Carbon
Set price
$14–$18
Reel price
$150–$180
Brand
Tecnifibre (France)

Sources & reviews

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