| Spec | Artengo TR990 Power Pro | Head Speed Pro |
|---|---|---|
| Weight (unstrung) | 305g | 310g |
| Head Size | 98 sq in | 100 sq in |
| Balance | Head Light | Head Light |
| String Pattern | 16x19 | 18x20 |
| Swingweight | 315 | 329 |
| RA Stiffness | 66 | 68 |
| Strung Weight | 330g | 335g |
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