Bowler Ratings


Bowler ratings are from 1 to 10 in order of Stroker (ST), Tweener (TW), Cranker (CR)

Note: Ratings are only available to our premium members.

General Info

Name:Perpetual Motion
Reviewed:February 2011
Coverstock Specs
Type:Reactive Pearl
Box Finish:500 / 1000 / Rough Buff
Color:Garnet Pearl / Gold Pearl
Core Specs
Int. Diff:0.000

For details on our standard test layouts, please click here.

The release of the Perpetual Motion marks the first time in the history of MoRich that a symmetrical core has been used in their product line. This new ball also uses a brand new reactive pearl cover called Responsiv. This formula of core and cover creates a strong, consistent motion that is a great option for medium and some drier oil patterns.

For all three testers, the best reaction came on the medium oil test pattern. The Rough Buff box finish allows the ball to get moderate length, pick up strongly in the midlane, and have continuation on the back end. The Perpetual Motion showed a tremendous amount of versatility on all but the heavy oil pattern, which can be overcome with surface adjustments. The Perpetual Motion can be used as an option for

The BTM Ball Testing Team

About The BTM Ball Testing Team

The BTM Ball Testing Team is led by Eric Martinez. Our team of three testers has thrown and reviewed hundreds of bowling balls for Bowling This Month. When not testing balls for BTM, Eric owns and operates University Pro Shop in San Antonio, TX and he is an avid competitive bowler. Click here to learn more about how we test and review bowling balls.