
Release Date
Overseas/International Release
The Momentus AV Core by Roto Grip is a high-performance bowling ball core designed for exceptional rolling power, hooking ability, and trajectory stability. Perfect for league and tournament bowlers, this core delivers unmatched back-end power and consistent performance on the lanes.
Key Features:
- Roto Grip Core Design: The Momentus AV Core features the signature star-shaped logo, representing Roto Grip’s commitment to quality and innovation.
- Microtrax™ Plus Solid Cover Stock: This advanced cover stock is slightly more oil-resistant than the Attention Star S2, offering enhanced stability and control on oily lane conditions.
- 1500 Grit Polished Finish: Ensures a smooth, consistent roll from the front to the mid-lane while still delivering a strong hook and impressive back-end reaction.
- Arc-Shaped Trajectory with Big Hook Potential: The ball’s motion combines a smooth arc shape with a powerful hooking ability, making it a game-changer for bowlers looking to dominate.
- Enhanced Pin Action with AI Technology: Integrated AI technology amplifies the core’s performance, delivering incredible pin-carry and destructive power on every shot.
Factory Finish
2000 Abralon
MicroTrax Plus Solid Coverstock
Type
Solid Reactive
Momentous AV + A.I. Core

Still riding the energy from the original Momentous Core, the Attention Star S2 takes it even further with the enhanced Momentous AV+ A.I. Core, now dialed in for even more power. Our R&D squad unlocked an all-new energy pattern that maximizes pin-crushing power with no loss of control. Every frame is an opportunity to defy gravity and break boundaries with a weight block design that’s out of this world.
Core Type
Asymmetric
16 pounds
RG
2.480
Diff
0.052
MB Diff
0.017
15 pounds
RG
2.480
Diff
0.049
MB Diff
0.017
14 pounds
RG
2.530
Diff
0.046
MB Diff
0.014
13 pounds
RG
2.560
Diff
0.034
MB Diff
0.011
12 pounds
RG
2.580
Diff
0.031
MB Diff
0.009