String & Racket Finder
TECNIFIBRE TF40 tennis rackets compared
French control engineering, Medvedev-adjacent. RS Section — rectangular beam walls for directional stability — and Foam Inside, a fully foam-filled hoop that genuinely deadens the impact into something solid and quiet, finished with the XTC surface. The 18×20 and 16×19 beds are the actual choice being offered.
Compare these frames in the finder →Specifications and scores
All 5 current TECNIFIBRE TF40 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TF40 305 | 305g | 98 | 18x20 | 70 RA | ~322 | ~320 | 21.5 | 9 | 9 | 5 | 5 | 9 | 7 | 6 | 6 | 6 | 9 | 7 | 7 |
| TF40 290 | 290g | 98 | 16x19 | 65 RA | ~308 | ~325 | 21.5 | 6 | 7 | 8 | 6 | 8 | 6 | 7 | 7 | 6 | 7 | 6 | 4 |
| TF40 305 16x19 | 305g | 98 | 16x19 | 64 RA | ~322 | ~318 | 21.5 | 6 | 7 | 8 | 6 | 8 | 6 | 7 | 7 | 6 | 7 | 6 | 7 |
| TF40 315 16x19 | 315g | 98 | 16x19 | 64 RA | ~328 | ~312 | 21.5 | 6 | 7 | 8 | 7 | 9 | 9 | 4 | 8 | 8 | 7 | 8 | 7 |
| TF40 315 18x20 | 315g | 98 | 18x20 | 63 RA | ~328 | ~312 | 21.5 | 9 | 9 | 5 | 7 | 9 | 9 | 4 | 7 | 8 | 9 | 8 | 8 |
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.
Model notes
TF40 305
A precise, classical control frame: 98 square inches, 18x20, around 305g. Low launch, tight dispersion and a firm but well-damped response — Tecnifibre's construction takes the edge off the stiffness without blurring the feedback. Expect to generate your own power and to be rewarded with genuinely reliable targeting. A flat hitter's frame more than a spin player's.
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.