# HEAD Radical Pro 2021 vs ProKennex Black Ace Pro 2025 - Weight unstrung: 315 g on HEAD Radical Pro 2021 and 305 g on ProKennex Black Ace Pro 2025. - Head size: 98 in² on HEAD Radical Pro 2021 and 97 in² on ProKennex Black Ace Pro 2025. Scores calculated from the specs ([how we calculate](https://racquetrank.com/ca/methodology/)). Reference prices from stores, checked every day. ## Racquets in the comparison 2 racquets Tennis - [Radical Pro 2021 HEAD](https://racquetrank.com/ca/tennis/head/radical-pro-2021/) - [Black Ace Pro 2025 ProKennex](https://racquetrank.com/ca/tennis/prokennex/black-ace-pro-2025/) Search racquets Highlight differencesHide identical Best in row Different Same | 2 racquetsLowest price | Radical Pro 2021 HEAD | Black Ace Pro 2025 ProKennex RR Score 72 out of 100, Good No offers right now | | | --- | --- | --- | --- | | 2 racquetsHighest RR Score: Black Ace Pro 2025 ProKennex (72). | #1HEADRadical Pro 2021 HEADSee price at Amazon | #2ProKennexBlack Ace Pro 2025 ProKennex RR Score 72 out of 100, Good No offers right now | | | --- | --- | --- | --- | | Where to buy | | | | | All offersReference price · we may earn a commission from these links | AmazonSee price | No offers right now | | | RR Score | | | | | RR Score | No data | RR Score 72 out of 100, Good | | | Dimensions | | | | | Weight unstrung | 315 g | 305 g | | | Weight strung | 332 g | 323 g | | | Head size | 98 in² | 97 in² | | | Length | No data | 27 in | | | Balance point | 315 mm | 320 mm | | | Swingweight | No data | 325 | | | Construction | | | | | Stiffness (RA) | No data | 57 RA | | | String pattern | No data | 16x19 | | | Frame thickness | No data | 19.5/19.5/19.5 mm | | | Material | No data | Aurealian carbon with Kinetic System | | | Offers summary | | | | | Lowest price | No data | No data | | ## Other tennis comparisons - [HEAD Radical MP 2025 vs HEAD Radical Pro 2021](https://racquetrank.com/ca/compare/tennis/head-radical-mp-2025-vs-head-radical-pro-2021/) - [HEAD Radical Pro 2021 vs HEAD Radical Pro 2025](https://racquetrank.com/ca/compare/tennis/head-radical-pro-2021-vs-head-radical-pro-2025/) - [HEAD Radical Pro 2021 vs HEAD Radical Team 2025](https://racquetrank.com/ca/compare/tennis/head-radical-pro-2021-vs-head-radical-team-2025/) - [Babolat Pure Strike 97 2024 vs HEAD Radical Pro 2021](https://racquetrank.com/ca/compare/tennis/babolat-pure-strike-97-2024-vs-head-radical-pro-2021/) - [HEAD Radical Pro 2021 vs HEAD Radical Team L 2025](https://racquetrank.com/ca/compare/tennis/head-radical-pro-2021-vs-head-radical-team-l-2025/) - [HEAD Radical Pro 2021 vs HEAD Radical Tour 2025](https://racquetrank.com/ca/compare/tennis/head-radical-pro-2021-vs-head-radical-tour-2025/) - [HEAD Radical Junior 26 2025 vs HEAD Radical Pro 2021](https://racquetrank.com/ca/compare/tennis/head-radical-junior-26-2025-vs-head-radical-pro-2021/) - [HEAD Radical Pro 2021 vs Yonex VCORE 95 2026](https://racquetrank.com/ca/compare/tennis/head-radical-pro-2021-vs-yonex-vcore-95-2026/) - [ProKennex Black Ace 300 2025 vs ProKennex Black Ace Pro 2025](https://racquetrank.com/ca/compare/tennis/prokennex-black-ace-300-2025-vs-prokennex-black-ace-pro-2025/) - [HEAD Radical Pro 2021 vs HEAD Radical Pro 2023](https://racquetrank.com/ca/compare/tennis/head-radical-pro-2021-vs-head-radical-pro-2023/) - [HEAD Radical MP 2023 vs HEAD Radical Pro 2021](https://racquetrank.com/ca/compare/tennis/head-radical-mp-2023-vs-head-radical-pro-2021/) - [HEAD Radical MP 2021 vs HEAD Radical Pro 2021](https://racquetrank.com/ca/compare/tennis/head-radical-mp-2021-vs-head-radical-pro-2021/) --- Source: https://racquetrank.com/ca/compare/tennis/head-radical-pro-2021-vs-prokennex-black-ace-pro-2025/