Roto Grip
Defiant
PatternStTwCr
Oily:
Medium:
Dry:
Sport:

(1-10 in order of Stroker (ST), Tweener (TW), Cranker (CR))

Coverstock Info
Name:
Microbite Solid Reactive
Type:
Reactive Solid
Box Finish:
3000 Abralon
Color:
Blue / Purple / Black
Core Info
Name:
NA
Type:Asymmetrical
RG:2.49
Total Diff:0.054
Int. Diff:0.017

The Defiant is the first in a new line of bowling balls for Roto Grip. The new Royal line is a line that Roto Grip has used on overseas releases and now they are bringing it to domestic markets. This core/cover combination creates the most overall hook we have seen from Roto Grip.

In our testing, we found the Defiant to match up best with our heavy test pattern. Stroker, Tweener, and Cranker all had a terrific overall reaction while this pattern was fresh. Stroker’s ball reaction got even better as the session progressed due to the...

To read the full review, please visit:
https://www.bowlingthismonth.com/bowling-ball-review/roto-grip-defiant/

Performance Ratings

NameValueComments
Torque
(1-10)
Length
(1-25)
Back End
(1-20)
Total Hook
(1-100)

Strengths:



Weaknesses:



Overall Summary: