Racquets

A used frame can be an excellent deal or a dead object. What can be checked by eye, what needs measuring, what cannot be repaired, and what to do with it once you own it.

The brand decides nothing. Length, mass and swingweight decide everything — and a racquet that is too light teaches a bad stroke. Including where a tuned frame changes nothing.

A racquet does not cure a tendinopathy. It can stop feeding it: frame stiffness, string, tension, swingweight and grip size — and the order in which to change things.

Not a brand, not a model: four values decide what you feel at impact — mass, balance, swingweight, stiffness. How to place them from the racquet you already own.

A pro stock promises one simple thing: escape the retail frame. The promise is real. What is less real is the condition it arrives in, and the settings it carries — someone else's.

Racquet rankings contradict each other from one site to the next, and it is not dishonesty: the question is asked at a scale where the answer does not exist.

A racquet's size is not the child's age. What actually decides: length, mass relative to the arm, and the string — in that order.

Twenty-seven inches for everyone is a convention, not a law of physics. What half an inch moves on swingweight, reach and timing.

Our logo is a cubic tennis ball — a set of axes. It's how we name our racquets and how you find yours. X, Y, Z explained, and how the axis leads to a full frame + setup + string.

RA is one of the most misused numbers in tennis. What it really measures, what both extremes cost, and why the adult Matcheur range is fixed at 69 — junior at 55.

Small heads vanished from the pro tour for a physical reason — and the same physics explains why the Matcheur range starts at 97. Plus: when a tiny head is exactly what you want.

The tangential (brushed) strike explains the shape of your racquet and why your gear fits you. The physics of modern tennis, and how to read the Matcheur grid.

Your ranking is not a physical quantity. How mass, balance and swingweight are chosen from a collision rather than from a level.

Head size, string pattern, stiffness, inertia: the reading keys tour technicians use, and what they say about your gear.

Mass, balance, swingweight, twistweight, MGR/I: the quantities that decide what a stroke costs, and the formulas to work with them.

ProSetup is not a racquet range: it is a tuning applied to the frame you already own. Mass, balance, swingweight, measured before and after.