If ya don't know, it is mentioned in the Manga that Kenta is in 5th grade at the beginning of Fusion. Maybe 11 years old. Besides Ryuga's body being over 100 years
Kenta Yumiya | Beyblade Wiki | Fandom
Kenta Yumiya... - Kenta Yumiya "BeyBlade Metal Series"
Kenta Yumiya - Metal Fight BeyBlade Photo (33291433) - Fanpop
Kenta Yumiya | Wiki | Beyblade Fandom Amino
Kenta Yumiya from Beyblade: Metal Fusion Costume | Carbon Costume | DIY Dress-Up Guides for Cosplay & Halloween
Kenta Yumiya | Beyblade Wiki | Fandom
I guess shannon... - Kenta Yumiya "BeyBlade Metal Series" | Facebook
Kenta Yumiya Fan Art Beyblade: Metal Fusion Drawing PNG, Clipart, Anime, Arm, Art, Artist, Artwork Free