String & Racket Finder
DUNLOP SX tennis rackets compared
The spin line. Spin Boost grommets angled so the mains slide and snap back, Sonic Core for the comfort story. Launch-angle merchandise, and effective at it.
Compare these frames in the finder →Specifications and scores
All 3 current DUNLOP SX models, with unstrung weight, head size, string pattern, stiffness (RA), swingweight, balance and beam width, followed by the eleven playing axes rated 0–10 and a difficulty rating.
| Model | Weight | Head | Pattern | Stiffness | Swingweight | Balance | Beam | Ctrl | Prec | Spin | Pwr | Feel | Stab | Man | Serve | Smsh | Slice | Ret | Diff |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SX 300 Tour (2025) | 305g | 100 | 16x19 | 68 RA | ~325 | ~315 | 23/26/23 | 6 | 6 | 9 | 9 | 7 | 9 | 4 | 9 | 8 | 6 | 9 | 7 |
| SX 300 (2025) | 300g | 100 | 16x19 | 69 RA | ~322 | ~320 | 23/26/23 | 6 | 6 | 9 | 8 | 6 | 6 | 7 | 8 | 6 | 6 | 7 | 7 |
| SX 300 LS (2025) | 285g | 100 | 16x19 | 68 RA | ~305 | ~330 | 23/26/23 | 6 | 6 | 9 | 8 | 6 | 4 | 9 | 8 | 5 | 6 | 5 | 2 |
Swipe the table sideways for the remaining columns.
Axes, in order: Control (flat) · Precision · Spin · Power · Feel / comfort · Stability · Maneuverability · Serve · Smash & overhead · Slice / touch · Return / blocking. Difficulty is how demanding the frame is to use well, not how good it is.
Choosing between them
Frames in one family share a construction story but not a playing character — head size, pattern and swingweight move the numbers above far more than the marketing does. If you want a shortlist matched to how you actually play, and a string bed matched to the frame, the finder does that in a few taps.