Yonex MAVIS 250 Nylon Shuttlecock Speeds: Green, Blue and Red

For Yonex MAVIS 250 shuttles, green means slow, blue means medium and red means fast. Choose for the temperature inside your hall, then check the flight on court.

Which cap colour should you buy?

These are Yonex’s published MAVIS 250 ranges. At 20°C, blue is the straightforward starting choice. At 28°C, choose green. The ranges overlap at 12–13°C and 22–23°C, so a court test can help when both options fit the chart.

Why does a cold hall need a faster shuttle?

Yonex says the nylon skirt’s hardness changes with temperature. Its speed options account for different playing conditions. You choose a faster grade in the cold and a slower one in the heat to get suitable flight.

Use the hall temperature, not the weather forecast. A heated gym in January may need the same shuttle as it does in autumn.

Check a doubtful speed before buying more tubes

Use the BWF shuttle-speed test, Law 3. It checks where a shuttle lands after a specified stroke:

1. Make contact directly over your back boundary line with a full underhand stroke.
2. Hit upwards, parallel to the sidelines.
3. Look for a landing point 53–99 cm short of the opposite back boundary.

If it lands less than 53 cm short of the far back line, or beyond it, try a slower speed. One landing more than 99 cm short has not travelled far enough; try faster. Those comparisons only help if the test stroke is consistent. If you’re learning it, ask an experienced player to test with you before changing the whole club’s supply.

Two colour mix-ups to avoid

White or yellow describes the skirt colour. It is separate from the speed choice: the MAVIS 250 specifications list colour and speed separately. Read the speed marking on the packaging when ordering.

For another brand or model, check that product’s chart. A green cap on an unfamiliar tube is not enough to identify its temperature range.

Once you find a speed that works, note the model, speed and hall temperature on your club’s order list. That makes the next purchase easier and gives you something useful to revisit if the hall gets warmer or colder.