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Over the years I've used many badminton rackets, with a wide variety of code numbering placed at the beginning of the shaft:

G4/3U
G2/2U

Can somebody give me detailed information about the meaning of those codes?

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NOTE: There appears to be no universal, consistent standard for these codes as codes for a manufacturer/country may represent opposite meanings compared to another manufacturer/country.

G is in reference to grip sizes.

U is in reference to racket weight.

For a majority(1) of rackets:

  • Grip sizes range from G1, G2, G3, G4, and G5
    • G1 - 3 in (smallest)
    • G2 - 3 1/4 in
    • G3 - 3 1/2 in
    • G4 - 3 3/4 in
    • G5 - 4 in (largest)

In Japan, they range from G2, G3, G4 to G5 where G2 is the biggest size and G5 is the smallest size. In some countries, the opposite applies.

  • Racket weight ranges from 1U, 2U, 3U, and 4U
    • 1U - up to 100 grams (heaviest)
    • 4U - at least 70 grams (lightest)
  • Thanks for responding so quick. Can you narrow down the G codes to particular widths or the U codes for that matter? – Jacob Jan Tuinstra Jun 10 '13 at 20:28
  • Done...but with a note. Seems like Japan and some other countries are opposite when it comes to grip sizes... – user527 Jun 10 '13 at 20:35
  • Are the weights and the sizes measured with or without the grip? – Jacob Jan Tuinstra Jun 20 '13 at 19:01

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