Specs for Dunlop BioFibre F3.1 Tour
| Strung weight | 11.6oz / 328.85g |
| Balance | 7 pts Head Light |
| Head size | 98 sq. in. / 632.26 sq. cm. |
| Stiffness | Average - 42% (63 RA) |
| Recommended tension | 52-62 pounds |
| Swing weight | 318 kg · cm2 |
| String pattern | 18 Mains / 20 Crosses Mains skip: 8T,10T,8H,10H Two Pieces - Short Side No Shared Holes |
| Length | 27in / 68.58cm |
| Beam width | 22mm / 22mm / 22mm / |
| Composition | Graphite/Biofibre |
| Power level | Low |
| Stroke style | Full |
| Swing speed | Fast |
| Colors | Black/Red/White |
| Grip type | Dunlop Synthetic |