3U, 4U, 5U, G4, G5 or G6: Badminton Racket Codes Explained Simply

Many badminton rackets carry codes like 3U G5, 4U G5 or 5U G6. They look technical, but they answer two very practical buying questions: How heavy is the racket – and how big is the grip?

If you understand these codes, you can compare models more precisely and avoid buying the wrong one. You will find suitable models among our badminton rackets.

The codes in 30 seconds

• 3U, 4U or 5U describes the weight class of the racket.
• G4, G5 or G6 describes the grip size.
• The higher the U number, the lighter the racket.
• In many Asian sizing systems: the higher the G number, the smaller the grip. Manufacturers may differ, though.

What do 3U, 4U and 5U mean?

The U value usually refers to the weight of the unstrung racket. Typical ranges are:

Grip tape, strings and manufacturing tolerances change the actual playing weight. So treat the U class as a frame of reference, not as an exact weight of the racket ready to play.

3U: more mass and stability

A 3U racket offers noticeably more mass. This can add power to clears and smashes and feels very stable on cleanly hit shuttles. At the same time, it takes more strength and good technique to accelerate.

3U often suits strong players, attacking doubles or players who like a calm, solid hitting feel. In long sessions, however, the extra weight can tire you out faster.

4U: the versatile all-rounder

4U is the most common weight class in Europe. For many adults it is the best starting point. The racket stays fast enough for defence and drive exchanges but still has enough substance for clears and attack. That is why you will find many all-round badminton rackets in this class.

Beginners, club players and doubles players often get on well with 4U. If you are still unsure, judge weight and balance together.

5U: maximum manoeuvrability

5U rackets can be moved very quickly. That helps with reactions, defence and short movements at the net. They are interesting for players with little strength, young players or anyone who prefers very light handling.

Very light rackets do not replace technique, though. Depending on balance and shaft, a 5U model can still play offensively despite its low mass. If you are just starting out, also take a look at our badminton rackets for beginners.

Weight is not everything: think about balance too

A head-heavy 4U racket can feel heavier in the swing than a head-light 3U racket. Head-heavy rackets often support attack, head-light rackets make quick changes of direction easier, and an even balance is versatile.

You will find a more detailed overview in our guide to weight, balance and playing style.

What do G4, G5 and G6 mean?

The G value describes the circumference of the grip core. For Yonex and many models with similar labels, the rule is usually: G4 is larger than G5, G5 is larger than G6. Important: other manufacturers or markets may use their own systems. So always compare the specific manufacturer specification.

G4

A larger grip fills the hand more. This can feel stable, but with small hands it sometimes makes quick grip changes harder.

G5

G5 is a common middle ground. An overgrip makes the circumference larger quite easily, which is why many players prefer to start slightly smaller.

G6

G6 is thinner and allows a lot of finger work. For large hands, the grip can feel too narrow without extra layers.

How to check the right grip size

• Hold the racket loosely in the basic grip, not with maximum force.
• Your fingers should not dig hard into the palm.
• Changing grip between forehand and backhand should be possible without tensing up.
• A grip that is too small can be built up with overgrips; making it smaller is much harder.

How to choose the material is explained in our guide to choosing the right badminton grip.

Which combination suits which game?

These recommendations are starting points. Balance, shaft stiffness, technique and personal preference matter just as much.

Buying checklist

• Check the U class and the actual weight.
• Match balance and shaft stiffness to your playing style.
• Check the grip size of the specific manufacturer.
• Leave room for grip tape or an overgrip.
• If in doubt, try a versatile 4U model first.

Conclusion

3U, 4U and 5U classify the weight; G4, G5 and G6 the grip size. For many players, 4U G5 is a versatile starting point. What really matters, though, is the combination of weight, balance, shaft and grip – only together do they create the actual feel on court.