Astrox 77 Pro vs Astrox 88S Pro 2024

Both are 4U, slightly head-heavy, even-balance Yonex Astrox frames. The 77 Pro is the friendliest pro-tier upgrade Yonex makes. The 88S Pro 2024 is the market’s current control-balance benchmark for doubles. Choose by your timing tier, not by the price tag.

Author note: I (Rui Su, Division 4 Ireland) currently use the 88S Pro 2024 as my main racket and previously played the 77 Pro for two seasons. Both are excellent. The honest gap between them is smaller than reviewers usually claim.

Spec	77 Pro	88S Pro 2024
Weight	4U (~83-85g)	4U (~84g unstrung)
Balance	Slightly head-heavy	Slight head-heavy (~301mm)
Shaft flex	Medium-stiff	Stiff (Namd Flex Force)
Frame size	Standard	Slightly larger
Price (USD)	~$220	~$240

The honest difference: shaft hardness

The 77 Pro shaft loads gently — you feel the bend, you feel it snap back, and your timing window is forgiving. The 88S Pro 2024 shaft is meaningfully stiffer (mid-7s on Yuan-style measurement vs the 77 Pro’s softer profile). When you load it cleanly, the response is crisper and faster. When your timing slips, the 88S Pro punishes it more than the 77 Pro does.

The frame: 88S Pro is bigger

The 88S Pro 2024 frame is a step larger than the 77 Pro and slightly larger than the original 88S Pro. The bigger frame plus thicker rim creates a longer dwell time on contact — the shuttle stays on the strings a fraction longer, which gives you more directional control on drops, slices, and net play. It also makes the racket slightly slower to recover than the 77 Pro on rapid drives.

Choose 77 Pro if

You are a recreational-to-club player or an honest intermediate.
Your contact point is still inconsistent on overheads.
You play mixed disciplines and want one frame for everything.
You have any shoulder, elbow, or wrist comfort flags.

Choose 88S Pro 2024 if

You are a competitive club or league-level player.
Your timing on overheads is consistent (mishit rate under 15%).
Your primary discipline is doubles, especially front court or mixed.
You want the current market benchmark for control-balance doubles.

What about the 88D Pro?

The 88D Pro 2024 is the dedicated rear-court attack version — narrower frame, even stiffer shaft tuning, more head-heavy bias. If you smash from the back court as your primary attack pattern, choose 88D over 88S. If you switch roles or play significant front court, stay with 88S. Read the dedicated 88D Pro vs 88S Pro 2024 comparison for the deep-dive.

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