Storm IQ Tour 78/U PRE-DRILLED Bowling Ball

This ball ships professionally PRE-DRILLED for your convenience.

We’ve simplified the process so you can hit the lanes faster. Based on the ball weight you choose, we’ll drill it to a standard hand size that fits most bowlers in that weight range:

• X-Small (6lbs): Ages 8 & under
• Small (8–9lbs): Ages 8–11, women’s ring size 8–11
• Medium (10–12lbs): Ages 11–15, adult ring size 10 or under
• Large (13–14lbs): Men’s ring size 10–12 or larger hands
• X-Large (15–16lbs): Men’s ring size 13+ or extra-large hands

Want a different drilling size than standard?
Email us immediately after checkout with your order number and your preferred size.

Storm IQ Tour 78/U Bowling Ball – Classic Control with a Modern Urethane Edge

Engineered for precision, the Storm IQ Tour 78/U brings a fresh take to urethane performance with the brand-new Control 78 Solid Urethane coverstock. This formulation delivers a smoother, more predictable reaction than traditional urethane, making it the ideal choice for dry to medium oil lane conditions. And yes—it’s PBA® compliant, giving you tournament-ready confidence from your very first throw.

At its heart is the trusted C3 Centripetal Control Core, a symmetrical shape that has made the !Q Tour line a favorite among competitive bowlers worldwide. This low-RG (2.49) and low-diff (0.029) core promotes early roll with minimal flare, allowing for a strong, controlled arc that keeps you in the pocket without overreacting on friction.

With its deep 500 Grit finish and true urethane motion, the IQ Tour 78/U is your go-to for taming dry lanes, controlling the backend, and executing shots with finesse—not flash. Finished in bold red, it’s a statement of substance over showmanship.

Specifications:

• Coverstock: Control 78 Solid Urethane

• Core: C3 Centripetal Control Core (Symmetrical)

• RG (15lb): 2.49

• Diff (15lb): 0.029

• Finish: 500 Grit

• Flare Potential: 2–3 Inches

• Lane Conditions: Dry – Medium Oil

• Weights: 12lb–16lb

• Color: Red

• Scent: None

• Performance Level: Mid Performance (Storm Master Line)

• PBA® Compliant: Yes

If you're a serious competitor or league bowler who values control over chaos, the Storm IQ Tour 78/U brings next-level precision with vintage urethane feel.