The RST + AI asymmetrical core design returns in Roto Grip’s new RST Hyperdrive Pearl. This ball pairs this large-flaring weight block with the new U-R1 Pearl coverstock. It is finished with Power Edge polish, giving this ball much more length than the original RST Hyperdrive. We found that this coverstock provided more traction in […]
Roto Grip RST Hyperdrive Pearl appeared first in Bowling This Month.