String comparison
RPM Blast Rough vs Hyper-G
Babolat RPM Blast Rough against Solinco Hyper-G: ratings, specs and which one fits your junior.
The short answer
Both are polyester strings. RPM Blast Rough leads on comfort. Hyper-G leads on control, durability and tension hold. For a junior with arm concerns, RPM Blast Rough is the safer choice. Hyper-G costs less per set.
Ratings
Power
Spin
Control
Comfort
Durability
Tension hold
Ratings are on a 1–10 scale. The higher score is in bold when they differ.
Pick RPM Blast Rough if…
- You want more comfort (6 vs 5 out of 10)
- Arm comfort comes first (arm friendliness 3/5 vs 2/5)
- Your player is younger (recommended from age 13 vs 14)
- Best for: spin-obsessed players
- Best for: juniors developing their topspin game
- Best for: first-time poly users (more forgiving than Blast)
Pick Hyper-G if…
- You want more control (9 vs 8 out of 10)
- You want more durability (8 vs 6 out of 10)
- You want more tension hold (7 vs 5 out of 10)
- You want to spend less (from $12 vs $20 a set)
- Best for: heavy topspin players
- Best for: advanced juniors with fast, full swings
- Best for: players looking for spin + control at great value
Specs side by side
| Spec | RPM Blast Rough | Hyper-G |
|---|---|---|
| Type | Polyester | Polyester |
| Construction | Textured octagonal high-density co-polyester | Square-shaped co-polyester monofilament |
| Gauges | 16, 17 | 15L, 16, 16L, 17, 18, 19, 20 |
| Stiffness | Medium | Medium high |
| Set price | $20–21 | $12–13 |
| Reel price | $130–150 | $165–175 |
| Arm friendliness | 3/5 · Moderate | 2/5 · Low |
| Cost to maintain | 3/5 | 5/5 |
| Recommended from | Age 13 | Age 14 |
| Levels | Intermediate, Advanced, Elite | Advanced, Elite |
| Play styles | Baseliner, Big hitter | Baseliner, Big hitter |
| Junior tension | 46-50 lbs for juniors. Can string slightly lower than regular Blast. | 46-50 lbs for juniors. Square shape grips well so can string lower for more comfort. |
RPM Blast Rough in short
Babolat RPM Blast Rough adds a textured surface to the familiar octagonal profile of RPM Blast. The result is a string that some testers found eclipsed the spin of the original. It feels softer and more arm-friendly than regular RPM Blast, with a livelier, more powerful response. A great entry-level co-poly for juniors or developing players looking to try their first polyester string.
Hyper-G in short
Since 2014, Hyper-G has endured as the top string choice for tennis players around the globe. Developed for an ATP top 50 player, this shaped co-poly with an impressive combination of spin and precision allows big hitters to take massive cuts at the ball without having to worry about overhitting. The square profile with sharp edges bites the ball at contact, generating massive spin. Topspin players who like hitting balls that dive sharply and explode off the court should love this string. With an unmatched selection of 7 gauges from 15L to 20, there's a Hyper-G for every playing style.
RPM Blast Rough vs Hyper-G: quick answers
Which has more spin, RPM Blast Rough or Hyper-G?
They tie on our spin rating (10/10 each).
Which is more arm-friendly for a junior?
Babolat RPM Blast Rough scores 3/5 for arm friendliness, against 2/5 for Hyper-G. It is recommended from age 13.
Which lasts longer?
Solinco Hyper-G rates 8/10 for durability against 6/10.
Which is cheaper?
RPM Blast Rough costs about $20–21 a set and Hyper-G about $12–13, at typical retail.
The short answer and the "pick if" lists are generated from our ratings and junior data only. Data verified 2025-01 (RPM Blast Rough) and 2025-01 (Hyper-G).