Tour-level control from a mischievous bloodline. The Rondure™ TOUR-X Core is a precision modification of the proven Rondure shape — by manipulating internal mass densities we lowered both the RG and the Diff, creating a highly controllable, medium-flaring asymmetric motion tuned for the smooth, professional-grade shape elite players demand.

The V-R1™ Hybrid Reactive cover uses a precise 2:1 blend — two parts solid, one part pearl — for maximum mid-lane traction with a clean pearl response off the back. The result is consistent, continuous, tour-quality motion across a wide variety of patterns.

Who It's For

• Control-first players — the lowered RG and Diff deliver a smooth, predictable read tour bowlers trust.
• Medium to medium-heavy oil — the hybrid cover gives mid-lane traction without over-hooking.
• Tournament arsenals — a versatile, tunable benchmark that excels on a wide range of oil patterns.

Ball Specifications

• Color: Smoke/Velvet/Ink
• Coverstock: V-R1 Hybrid Reactive
• Weight Block: Rondure Tour-X Core
• Factory Finish: 4000 Abralon
• Flare Potential: Medium
• Radius of Gyration (RG): 16lbs - 2.48; 15lbs - 2.48; 14lbs - 2.52
• Differential (Diff): 16lbs - 0.032; 15lbs - 0.034; 14lbs - 0.034
• Intermediate Differential (Diff): 16lbs - 0.010; 15lbs - 0.011; 14lbs - 0.010
• Fragrance: N/A

Backed by expert drilling, fast shipping, and the best prices on performance gear.