Motiv Covert Tank Bowling Ball Features:

The Motiv Covert Tank brings back an older core shape while also introducing a new coverstock formulation to the market. The Torx weight block is a lower RG and higher differential symmetrical design that offers around five inches of flare potential. This core shape was previously used in the Forza. The coverstock is the most interesting part of this new release. Motiv has created a new cover formulation called Frixion Microcell Polymer that absorbs oil more than urethane, but not as quickly as reactive resin. The motion created by the Covert Tank fills the gap between balls like the previous Tanks and balls like the Freestyle Rush and Thrill.


A great competitive advantage in bowling today is modern urethane. It provides bowlers with control and the ability to play different parts of the lane than reactive resin. However, because urethane also has clear weaknesses, MOTIV set out to create the ultimate cover material that harnesses the strengths of traditional urethane, but offers far more versatility. Introducing the Covert Tank.


The revolutionary Frixion cover material MOTIV developed for the Covert Tank is not urethane nor reactive resin. It is microcell polymer. Traditional urethane is virtually non-absorbing while reactive resin is highly absorbent. Frixion microcell polymer absorbs oil at a fraction of the speed of reactive resin, but is still capable of absorbing oil at a very slow rate. This microscopic difference creates more continuation and better pin carry without sacrificing traction.


While typical urethane balls are primarily used by bowlers with a high rev rate, the Covert Tank is a more versatile piece that will benefit more styles of play because it merges this new microcell polymer cover with a strong Torx weight block. The higher differential produces more track flare, which both improves backend motion and also limits oil redistribution. Traditional urethane balls tend to have lower track flare, struggle with pin carry, and push more oil down lane.


Even the color scheme of the Covert Tank was created with the competitive bowler in mind. The solid black cover with dark gray pearl NeoMark graphics provides a crisp contrast to the lane surface so ball motion is easy to see.

Motiv Covert Tank

Weight (lbs)
  • Coverstock Type

    Microcell Polymer

    Core Type


    Recommended Lane Conditions

    Light to Medium Oil, Short Oil


    Reaction Type

    Smooth Controlled Motion on Drier Lane


    X Factor Hook Rating Scale (1-20)


    Radius of Gyration (RG)

    2.50 (15lb)

    Differential (DIFF)

    .051 (15lb)

    Flare Potential





    Frixion Microcell Polymer

    Factory Finish

    2000 Grit LSS



    Release Date


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