Specs for ISOSPEED Black Fire 17
| Stiffness | Average - 53% (205 lb/in) |
| Spin potential | High - 65% (5.6) |
| Tension loss | 39% |
| Energy return | 86% |
Latest updates
| john added a stringing of Solinco Hyper-G 18 to Babolat Pure Strike VS 3 months | |
| john added racket Babolat Pure Strike VS 3 months | |
| john added a stringing of Solinco Hyper-G 18 to Babolat Pure Aero VS 3 months | |
| john added racket Babolat Pure Aero VS 3 months | |
| john added a stringing of Yonex Poly Tour Spin 1.25 16L Blue to Yonex EZONE 98 (285g) 3 months | |
| john added racket Yonex EZONE 98 (285g) 3 months | |
| oceanwind added racket Tecnifibre TFlash 315 Dynacore ATP 4 months | |
| callmejack added racket Volkl V-Cell 4 4 months |