HEAD · Current range
HEAD Hawk
HEAD Hawk is listed as Polyester in 1.20 mm / 1.25 mm / 1.30 mm. Among the material-based catalog traits we can compare, Control stands out most. String cross-section: Round · Surface features: Smooth. Construction: monofilament · Surface features: Smooth.
Product details
- Material
- Polyester
- Gauge
- 1.2 / 1.25 / 1.3 mm
- Construction
- monofilament
- String cross-section
- Round
- Surface features
- Smooth
- Surface treatment / coating
- Not published by the manufacturer
- Product status
- Current range
- Stock status
- Stock not verified
Laboratory measurements
Lower stiffness means less resistance to deformation in this test. Tension loss is measured under a laboratory protocol, not a prediction of playing hours. Spin potential is a friction-based ratio, not ball RPM.
| Tested sample | Stiffness lb/in | Tension loss % | Spin potential ratio |
|---|---|---|---|
| Head Hawk 16 (1.30)Test conditions: 51 lb · Fast (TWU) | 230.3 | 28.5 | 6.4 |
| Head Hawk 18 (1.20)Test conditions: 51 lb · Fast (TWU) | 194.3 | 28.9 | 6.3 |
| Head Hawk 17 (1.25)Test conditions: 51 lb · Fast (TWU) | 204.6 | 32.9 | 4.7 |
The test tension is not a stringing recommendation. Compare the same gauge and test conditions; the racquet, stroke and stringing method also affect the result on court. On the source page, select All in the material filter to see results for every material.
Compare samples tested under the same conditions
Up to three products with nearby measured stiffness, matching diameter, material and test conditions. This is a data comparison, not a ranking of suitability.
| Tested sample | Stiffness lb/in | Tension loss % | Spin potential ratio |
|---|---|---|---|
| Head Hawk 17 (1.25) | 204.6 | 32.9 | 4.7 |
| Head Hawk Power 17 (1.25) | 203.5 | 48.3 | 7.5 |
| Luxilon Adrenaline 16L/1.25 | 202.9 | 44.3 | 3.5 |
| Luxilon Alu Power Vibe 16 (1.25) | 208 | 34.3 | 5 |
What material and construction establish
Polyester strings generally resist deformation more than softer string families, but individual products vary substantially. Spin depends on ball-to-string friction, inter-string friction and string movement during impact. Edges or a polyester label alone do not establish how much spin a player will produce.
Matching gauges before comparing
Use the stated diameter in millimetres. Nominal 16 or 17 gauge can correspond to different diameters across brands. A thinner version is not guaranteed to be softer or generate more spin. Results for a different colour or generation should not be silently merged with this product.
Reference tension is not measured stiffness
The machine setting is a pulling force during installation. Laboratory stiffness describes resistance to deformation under specified conditions. A test tension is not a stringing recommendation. Match test conditions and sample gauge; for a hybrid, also record which string is in the mains and which is in the crosses.
Track changes, not a promised lifespan
An unbroken stringbed can still change through tension loss, notching and friction. Log playing time, trajectory and how the mains return after displacement under similar conditions. Laboratory tension-loss percentages cannot be converted into a guaranteed number of playing hours.
Racquets to compare
Numbers are suggested only when the maker publishes a tension range.
Reviewed sources
HEAD · View source ↗Similar strings
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