
Yonex Astrox 99 Pro 4U
4UHead HeavyStiff2021
Yonex Astrox 99 Pro (Head Heavy, Stiff, 4U) is a versatile racket suited to intermediate-level players developing their game. Best suited for aggressive singles play and rear-court attacking in doubles. A professional-grade racket for tournament play.
Official Specifications
| Specification | Value |
|---|---|
| Weight Class | 4U |
| Balance Point | 315 mm |
| Balance Type | Head Heavy |
| Flex | Stiff |
| Max Tension | 28 lbs (12.5 kg) |
| Frame Material | HM Graphite, CFR, Tungsten, 2G-Namd™ FLEX FORCE |
| Shaft Material | HM Graphite, 2G-Namd™ FLEX FORCE, Ultra PE Fiber |
| Year Released | 2021 |
| Series | Astrox |
| Price Range | Pro ($200+) |
Similar Rackets
| Racket | Match | Weight Class | Balance Point | Balance Type | Flex | |
|---|---|---|---|---|---|---|
![]() | 100% | 4U | — | Head Heavy | Stiff | vs → |
![]() | 100% | 4U | — | Head Heavy | Stiff | vs → |
![]() | 100% | 4U | — | Head Heavy | Stiff | |
![]() | 100% | 4U | 315 mm | Head Heavy | Stiff | |
![]() | 95% | 4U | 305 mm | Head Heavy | Stiff | |
![]() | 93% | 4U | — | Head Heavy | Stiff |





