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ATTRIBUTE INDEX

Bowling Balls by Differential

Differential measures how much the ball flares as it travels down the lane. Flare is the distance between successive oil rings on the ball after each rotation. Higher differential means more flare, more total ball motion, and a stronger backend reaction. The USBC limit is 0.060 for 15-pound balls.

By the BowlersMart Pro Shop Team. Last reviewed for the 2026 season.
AT A GLANCE
42
Differential values indexed
3
Tiers: Low / Med / High
15 lb
Reference weight
USBC
Approved specs
HOW TO READ DIFFERENTIAL

The 3 Differential Tiers

Each Differential value falls into one of three tiers. Knowing which tier you need narrows the search before you drill down to specific values.

LOW DIFFERENTIAL
0.006 to 0.030

Smooth, controlled reaction. Great for straighter players and dry lanes.

MEDIUM DIFFERENTIAL
0.031 to 0.045

Balanced reaction. Versatile for most lane conditions.

HIGH DIFFERENTIAL
0.046 and up

Strong, angular reaction. Built for heavy oil and rev-dominant players.

THE INDEX

All Differential Values (Low to High)

Click any Differential value to see every BowlersMart ball with that exact specification.

LOW DIFFERENTIAL (0.006 to 0.030)

Smooth, controlled reaction. Great for straighter players and dry lanes.
0.006
Differential
0.008
Differential
0.009
Differential
0.010
Differential
Hammer Purple Pearl Urethane Bowling Ball
0.015
Differential
0.018
Differential
0.021
Differential
0.022
Differential
0.023
Differential
0.024
Differential
0.025
Differential
900 Global Booyah Bowling Ball
0.026
Differential
0.027
Differential
Brunswick Strike King Emerald Pearl Bowling Ball
0.028
Differential
0.029
Differential
0.030
Differential
MEDIUM DIFFERENTIAL (0.031 to 0.045)

Balanced reaction. Versatile for most lane conditions.
0.032
Differential
0.033
Differential
Motiv Carbide Tank Bowling Ball
0.034
Differential
Motiv Venom Shock Bowling Ball
0.035
Differential
0.036
Differential
0.037
Differential
0.038
Differential
0.040
Differential
0.041
Differential
0.042
Differential
0.043
Differential
0.044
Differential
0.045
Differential
HIGH DIFFERENTIAL (0.046 and up)

Strong, angular reaction. Built for heavy oil and rev-dominant players.
0.046
Differential
0.047
Differential
0.048
Differential
0.049
Differential
Storm Marvel Maxx Tour Bowling Ball
0.050
Differential
0.051
Differential
0.052
Differential
0.053
Differential
0.054
Differential
0.055
Differential
0.056
Differential
0.057
Differential
0.058
Differential

Other Core Attribute Indexes

ATTRIBUTE

By RG (Radius of Gyration)

Browse balls indexed by how early or late their core revs up.

Open RG index →

ATTRIBUTE

By Mass Bias Strength

Browse asymmetric balls indexed by how strong their backend break is.

Open MB index →

ATTRIBUTE

By Core Differential

Browse balls indexed by total flare and overall ball motion strength.

Open Differential index →

NEXT STEP

Know the Differential you want? Get fitted at a pro shop.

Picking the right Differential is one variable. Pairing it with the right layout for your PAP and rev rate is the next. Visit a BowlersMart pro shop for a certified fitting.