Weight
              15 pounds
           
PBA Approval Date
              Release Date
              Discontinued
      
            
      
            Roto Grip created the Halo bowling ball to dominate heavy oil conditions. This ball introduces the Centrum asymmetric super strong core and pairs it with the proven and strong MicroTrax-S18 coverstock. This pairing produces the same type of motion found with the Hyper Cell and No Rules but takes it up a level in strongness!
Factory Finish
              2000 Abralon
          MicroTrax-S18 Coverstock
Type
              Solid Reactive
          In testing and development we stumbled upon our strongest blend of Nano technology for the Roto Grip Brand to date, MicroTrax-S18. With tweaks in formulas and mix ratios we have created a coverstock that provides even more traction and is overall more aggressive than the Micro DNA Coverstock.
Centrum Core
It took more than a year to develop this unique-shaped core, which increases its rotation/continuation once the ball is in motion.
Core Type
              Asymmetric
          16 pounds
RG
              2.490
          Diff
              0.050
          MB Diff
              0.018
          15 pounds
RG
              2.490
          Diff
              0.050
          MB Diff
              0.018
          14 pounds
RG
              2.540
          Diff
              0.044
          MB Diff
              0.015
          13 pounds
RG
              2.600
          Diff
              0.040
          MB Diff
              0.008
          12 pounds
RG
              2.620
          Diff
              0.040
          MB Diff
              0.008
          