Source: [Decathlon Australia](https://decathlon.com.au) [Stradia](https://racquetrank.com/us/tennis/stradia/) # Sonic Strike 21 Stradia Tennis · Sonic Updated on 10/05/2026 The Stradia Sonic Strike 21 is a two-piece aluminum junior tennis racquet, 21 in long, with an 84 in² head and a 16x19 string pattern. It weighs about 190 g, has a 260 mm balance and a No. 2 grip, and the recommended tension is 40 to 45 lb. The low weight and balance point make the racquet agile and easy to maneuver for young players. We haven't found offers for this racquet yet. ## Offers We haven't found offers for this racquet yet. ## Price history Not enough price history yet. ## Strengths and watch-outs ## Pros - Light (about 190 g): easy to maneuver - 260 mm balance: agile handling - Two-piece aluminum: durability ## Cons - 84 in² head: small hitting area - 21 in size: only for small children ## Specs | Weight unstrung | No data | Medium confidence | | --- | --- | --- | | Weight strung | No data | Medium confidence | | Head size | 84 in² | Medium confidence | | Length | 21 in | Medium confidence | | Balance point | 260 mm | Medium confidence | | Swingweight | No data | Medium confidence | | Stiffness (RA) | No data | Medium confidence | | --- | --- | --- | | String pattern | 16x19 | Medium confidence | | Frame thickness | No data | Medium confidence | | Material | Two-piece aluminum | Medium confidence | | Recommended tension | 40-45 lb | Medium confidence | | Grip sizes | L2 | Medium confidence | ## Community 0 review(s) and comment(s) No reviews yet. Have you played with the Sonic Strike 21 Stradia? Tell us how it went. ## Similar racquets [See more](https://racquetrank.com/us/tennis/) Wilson · Tennis ### Pro Staff Precision 103 Wilson RR Score 60 out of 100, RR Score 4.1 (66) - Weight: 270 g - Head: 103 in² - Strings: 16x20 No offers right now Wilson · Tennis ### Blade 101 Team V10 Wilson RR Score 60 out of 100, RR Score - Weight: 275 g - Head: 101 in² - Strings: 16x20 - RA: 64 RA No offers right now · Tennis ### Extreme MP 2026 HEAD RR Score 66 out of 100, RR Score 5.0 (1) - Weight: 300 g - Head: 100 in² - Strings: 16x19 - RA: 67 RA [See price at Amazon](https://racquetrank.com/go/01M49QVSGJCFH5GJC4VPY64EZM) · Tennis ### Pure Drive Wimbledon 2025 Babolat RR Score 68 out of 100, RR Score 5.0 (5) - Weight: 300 g - Head: 100 in² - Strings: 16x19 - RA: 72 RA [See price at Do It Tennis](https://racquetrank.com/go/01M45XH8Y6VF4PNQ6P1E6SW37J) · Tennis ### Pure Strike 100 16x19 2024 Babolat RR Score 68 out of 100, RR Score - Weight: 300 g - Head: 100 in² - Strings: 16x19 - RA: 63 RA [See price at Amazon](https://racquetrank.com/go/01M49QVSGN1B4YT6YE36BP7ZFH)2 offers · Tennis ### Boom MP 2026 HEAD RR Score 68 out of 100, RR Score 5.0 (2) - Weight: 295 g - Head: 100 in² - Strings: 16x19 - RA: 61 RA [See price at Amazon](https://racquetrank.com/go/01M49QVSGJNT6DYRDD3T5J710Q) Wilson · Tennis ### Clash 100L V3 Wilson RR Score 69 out of 100, RR Score 5.0 (2) - Weight: 280 g - Head: 100 in² - Strings: 16x19 - RA: 54 RA [See price at Amazon](https://racquetrank.com/go/01M49QVSGJTCP0ZK35PPSZJ803) [See more similar racquets All tennis racquets](https://racquetrank.com/us/tennis/) --- Source: https://racquetrank.com/us/tennis/stradia/sonic-strike-21/