

| Flex | stiff |
| Balance | Head Heavy |
| Weight / Grip | 3U / G4,G5,G6 4U / G5,G6 |
| Max Tension | 3U: 29 lbs 4U: 28 lbs |
The Yonex Astrox 100 Tour (item code AX100T) is built for advanced players focusing on aggressive smashes and deep attacking shots. According to Yonex's official specification, it features a Extra Stiff flex shaft.
It's available in two variants: 4U (G5,G6) and 3U (G4,G5,G6). The recommended stringing tensions are up to 20-28 lbs for 4U and 21-29 lbs for 3U.
While the official spec sheet does not explicitly label the balance category, multiple retailer listings describe this model as having a head-heavy balance, which supports powerful attacking play.
Key design features include a frame composed of HM Graphite, Nanomesh NEO, Tungsten; a shaft using HM Graphite and Namd™; the racquet has a length extended by 10 mm to improve shuttle hold and leverage.
A stiff shaft offers maximum control and precision, ideal for players with fast swing speeds who can fully load the shaft.
A head-heavy balance adds more momentum to your swings, giving stronger smashes and deeper clears. Best for attacking players.
Grip Sizes: G4,G5,G6
Max Tension: 29 lbs
3U (85-89g) gives more weight and stability, allowing stronger smashes and better control for powerful players.
This tension range is ideal for intermediate to advanced players seeking crisp control and strong repulsion.
Grip Sizes: G5,G6
Max Tension: 28 lbs
4U (80-84g) offers faster handling and great maneuverability, ideal for doubles or quick all-round play.
This tension range is ideal for intermediate to advanced players seeking crisp control and strong repulsion.