BRUNSWICK CORE REFERENCE
Brunswick Bowling Ball Core Library
Every symmetric and asymmetric core Brunswick has put into a ball, cataloged in one searchable reference. Click any core to see its specs, the balls built around it, and how it shapes ball motion on the lane.
By the BowlersMart Pro Shop Team. Last reviewed for the 2026 season. Cross-reference with the Brunswick Drilling Layouts guide.
AT A GLANCE
20+
Brunswick cores cataloged
2
Core types: sym & asym
2026
Season-current archive
A to Z
Alphabetical reference
CORE BASICS
Symmetric vs Asymmetric Cores
Two core types, two different ball motion profiles. Knowing which type you are looking at changes how the ball lays out and how it moves on the lane.
UNIFORM SHAPE
Symmetric Cores
Have only a pin marker. Produce smoother, more predictable motion. Easier to control, ideal for benchmark and arsenal foundations.
Example Brunswick models: Quantum, Rhino, Tzone
UNEVEN SHAPE
Asymmetric Cores
Have both a pin AND a PSA (Preferential Spin Axis) marker. Generate stronger, more defined backend motion. Standard in modern flagship balls.
Example Brunswick models: Twist Symmetric, Strategy, MeanStreak
For the full breakdown of how cores work, visit the Bowling Ball Cores research hub.
THE LIBRARY
All Brunswick Cores (A to Z)
Click any core image to see specs, photos, and the Brunswick balls built around it.
Brink Core
Brunswick Bowling Ball Core Library – click the core to see more info
Contra Core
Cynosure Core
ethos core
I-Block Core
infinity core
KingPin low rg
Melee Low RG
Mushroom
Portal Core
Portal X
QCS-12
QCS-18
QCS-24
tiered hexagon core
U-Motion Core
vintage light bulb Core
Zenith Core
Zone Asymmetric
Latest Brunswick News & Reviews
New Brunswick releases, reviews, and the equipment news our editorial team is following.
ARCHIVE
Retired Brunswick Bowling Balls
Brunswick balls now retired from production. Useful for arsenal research, ball-matching, and pro shop reference.
Original price was: $269.95.$119.95Current price is: $119.95.
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Pair This With
DRILLING
Brunswick Drilling Layouts
Brunswick’s official drilling guides for symmetric and asymmetric cores.
RESEARCH
Bowling Ball Cores Hub
The full cores research center. RG, differential, mass bias, and how core type shapes ball motion.
SHOP
Brunswick Bowling Balls
Browse every current Brunswick ball in stock at BowlersMart.
NEXT STEP
Know the core you want? Bring it to a pro shop.
Brunswick cores reach their full potential when paired with the right layout for your PAP and rev rate. Find a BowlersMart pro shop near you for a certified fitting.
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