The Track Symmetric core is a super high RG, low differential core that will be a must in any tournament bowler's bag. A core with unique numbers like this will store energy longer while remaining smooth and controllable down lane.
Core Type
Symmetric
16 pounds
RG
2.580
Diff
0.023
15 pounds
RG
2.570
Diff
0.029
14 pounds
RG
2.560
Diff
0.036
13 pounds
RG
2.530
Diff
0.055
12 pounds
RG
2.600
Diff
0.039