The ball path represents Roto Grip’s bowling ball tester. Ask your pro shop professional how this ball will work for you.
HALO™ Star
The forever famous Centrum Core has now established itself as one of the best asymmetrical cores in Roto Grip history.
With its cube type shape and radial disc shape through the middle, continuous motion best describes this core in
action.
This cover was first introduced on the original HALO. It is the newest hybrid formulation featured in the Roto Grip line.
This cover provides a good footprint in oil while still maintaining a strong responsive reaction to friction.
Medium to Medium/Heavy
This ball was designed to be the perfect compliment to the HALO Vision. Sure, both balls feature the same core.
However, the big difference is the coverstocks. Wrapping this core with the MicroTrax-H18™ hybrid cover creates
motion in a completely different part of the lane.
Don't you know what an OEM ball is?
(OEM = Original Equipment Manufacturer)
OEM balls are mostly balls that were made exclusively for a specific market
widely known and used throughout Asia.
They are NOT available on the US market (also known as "Asian Release").
Most productions are UNIQUE productions and the exclusivity and sometimes very specially adapted performance / type plate often make them an "I want an article".
Coverstock Name | MicroTrax-H18™ |
Coverstock Style | Hybrid |
Coverstock Type | Reactive |
Weight Block | Centrum™ Core (Asymmetrical) |
Color | Gold Silver Blue |
Finish | 1500-grit polished |
Finish Method | Polished |
Durometer | 73-75 on D-Scale |
Flare Potential | High |
Weights | 12lbs - 16lbs |
WEIGHT | RADIUS OF GYRATION |
DIFFERENTIAL | PSA DIFFERENTIAL |
---|---|---|---|
16 | 2.49 | 0.050 | 0.018 |
15 | 2.49 | 0.050 | 0.018 |
14 | 2.54 | 0.050 | 0.015 |
13 | 2.57 | 0.032 | 0.010 |
12 | 2.59 | 0.029 | 0.008 |