The Babolat B Fly 21 is a junior-specific tennis racket designed for beginners aged around 5–7 years (children approximately 110–125 cm tall). It features a lightweight aluminium build, oversized head, and ergonomic junior grip along with visual cues to help young players learn proper hand placement — making tennis more fun, accessible and easier to progress for kids.
The frame is made of aluminium, giving a good balance of durability and ease of handling for young players. The design is bright and fun, purposely child-friendly, and the grip size is specifically junior (6X0) with the MEMOGRIP system to guide hand placement. The shorter length and light weight help reduce strain and enable children to develop stroke fundamentals without being hindered by too heavy or too long a racket.
| Specification | Details |
|---|---|
| Head Size | 594 cm² (≈92 in²) |
| Length | 534 mm / 21″ |
| Weight (unstrung) | 183 g ± 10 g |
| Balance (unstrung) | 256 mm ± 10 mm |
| String Pattern | 14 × 15 |
| Composition | Aluminium |
| Recommended Player Height | 110–125 cm (≈41.5–47″) |
For a young beginner player, the Babolat B Fly 21 does a great job of balancing ease of use with learning support. The oversized head and light weight help a child make cleaner contact more often, boosting confidence. The MEMOGRIP and visual touches ensure that the child’s grip and hand positioning are guided naturally, which is excellent for early development. Because it is sized appropriately, the racket feels much more controllable than an adult-sized one. Naturally, power will be limited compared to full-sized adult rackets, but that is entirely appropriate for this age/size range — the priority here is fun, habit-forming good technique and building rallying ability more than high speed or spin.
Q: Is this racket suitable for a child taller than 125 cm?
A: The B Fly 21 is optimised for children around 110–125 cm tall. If the child is significantly taller or has longer arm reach, a longer junior size such as a 23″ (or bigger) model may be more appropriate to maintain balance and control.
Q: Can the strings be replaced or adjusted?
A: Yes — the racket comes pre-strung from factory, but you can have it re-strung or changed just like any other racket, if desired (though bear in mind using heavier gauge strings or high tension might affect how easy it is for a young player to swing it).
Q: Will this racket last as the child grows? Do I need to upgrade soon?
A: It’s a great beginner racket for the correct height range (110–125 cm). As the child grows taller or starts playing more competitively, they’ll likely move to a 23″ or 25″ junior racket or even adult size. Upgrading when you notice the racket feels too short, too light or the child struggles to generate any racquet head speed is a good idea.
Q: Does the colour/design matter for performance?
A: No — the colour scheme is primarily aesthetic and fun for kids. The performance characteristics come from the geometry, weight and build of the racket.