Roto Grip · HP3 line · Discontinued
The Roto Grip Rockstar Amped is a symmetrical pearl bowling ball from Roto Grip's HP3 line, released in October 2025. It has the NanoStar Pearl coverstock and the Rocker AI weight block, finished at Power Edge out of the box. At 15 lb its RG is 2.48, with a differential of 0.05. It's been discontinued.
Among the 65 balls here with a 15 lb version, its RG is low, so it revs up early, and its differential is medium. Its reaction ratings suit it to light to medium oil and short to long patterns in burn conditions, with a late hook, an angular turn at the breakpoint and medium flare.
Specs
Details
- Coverstock
- NanoStar Pearl
- Weight block
- Rocker AI
- Core
- AI
- Symmetry
- Symmetrical
- Factory finish
- Power Edge
- Durometer
- 73-75
- Flare potential
- Medium-Low
- Color
- Chili/Maroon/Raspberry
- Release date
- 10/01/25
Reaction
- Flare Potential5
- Ball Shape9
- Hook Length8-9
- Oil Volume2-5
- Pattern Length4-8
- Lane Condition8-11
Tech specs
| Weight | RG | Diff | PSA |
|---|---|---|---|
| 12 lb | 2.64 | 0.037 | — |
| 13 lb | 2.58 | 0.047 | — |
| 14 lb | 2.5 | 0.046 | — |
| 15 lb | 2.48 | 0.05 | — |
| 16 lb | 2.48 | 0.054 | — |
Balls most like it
Available balls closest to the Roto Grip Rockstar Amped on the six reaction ratings; 100% is an identical reaction.
Storm !Q Tour Sapphire Pearl90%
Storm Ion Pro Pearl Pearl89%
Storm Typhoon Pearl87%
Storm Hy-Road Hybrid82%
Storm Rocket A.I. Pearl81%
Storm Tropical Surge Black-Blue-Pink Solid81%
Storm Tropical Surge Silver-Purple Pearl81%
900 Global Portal Solid79%
Related balls
Other versions of the Roto Grip Rockstar Amped, then the rest of Roto Grip's HP3 line.
