Roto Grip X-Cell 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.

Roto Grip X-Cell Bowling Ball

Forgiveness meets explosive power in the Roto Grip X-Cell Bowling Ball, the latest evolution in high-performance design. Packed with A.I. Core Technology and the all-new eTrax™ ULTRA Solid Reactive coverstock, the X-Cell delivers a game-changing blend of consistency, versatility, and control—perfect for medium to heavy oil conditions.

At its heart lies the legendary Nucleus™ Core, now supercharged with A.I. enhancements. This iconic asymmetrical core shape spins faster and reads earlier thanks to a lower RG of 2.50, while its increased differential (.056) promotes dynamic flare and backend motion. The result? Enhanced forgiveness and energy retention, especially on off-pocket hits.

Complementing the core is the eTrax ULTRA coverstock, engineered to slot perfectly between the grippy aggression of MicroTrax™ and the cleaner motion of eTrax™ PLUS. The 2000-grit finish ensures controlled midlane read and a predictable, powerful arc—giving bowlers of all styles the confidence to attack tough patterns.

Whether you’re looking to open up the lanes or lock into a smooth, confident line, the X-Cell provides the perfect mix of traction, versatility, and forgiveness.

Technical Specifications:

• Brand: Roto Grip

• Coverstock Type: Reactive Solid

• Coverstock Name: eTrax ULTRA Solid Reactive

• Core Shape: Asymmetrical Core

• Core Name: Nucleus A.I. Core

• RG (15LB): 2.50

• Differential (15LB): .056

• Mass Bias Strength: .019

• Flare Potential: 4 – 5 Inches

• Surface Finish: 2000 Grit

• Lane Conditions: Medium – Heavy Oil

• Performance Level: HP4 (High Performance)

• Color: Black, Blue

• Available Weights: 12LB – 16LB

Push beyond the pocket with precision. The X-Cell isn’t just forgiving—it’s powerful, consistent, and built to raise your average.