Track
Theorem Solid
The Track Theorem Solid is a solid reactive bowling ball with the MC2 Asym core. RG 2.473 and differential 0.046 at 15 lb. For medium oil – heavy oil. No longer made.
Track’s Theorem line continues to push the boundaries of performance with the launch of the new Theorem Solid. Building on the success of the Theorem Hybrid and Pearl, the Theorem Solid brings the same length and strong sweeping motion that made the original so popular—only now, it’s engineered to tackle medium to oily lanes with its built-in traction. This solid version fills a crucial gap in the lineup, giving you a ball that works as a reliable first ball out of the bag or a go-to option when conditions demand a bit more hook before reaching for the shiny versions. If you loved the clean, dependable reaction of the original Theorem, the Theorem Solid takes that same dynamic shape and adapts it for even more versatility when there’s more oil on the lanes.
Specifications
- Coverstock
- Super Response Solid (HK22C)
- Cover type
- Solid reactive
- Core
- MC2 Asym
- Core type
- Asymmetric
- Factory finish
- 500, 2000 Siaair Micro Pad
- Lane condition
- Medium oil – Heavy oil
- Reaction
- Strong mid-lane and backend
- Color
- Black / Royal / Grape
- Weights
- 16–12 lb
- Part number
- 60-108435-93X
- Release date
- August 14, 2025
- Warranty
- Two years from purchase date
Own the Track Theorem Solid?
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Core numbers
|
Weight
|
RG
|
Diff
|
Int. diff
|
|---|---|---|---|
| 16 lb | 2.485 | 0.044 | 0.017 |
| 15 lb | 2.473 | 0.046 | 0.017 |
| 14 lb | 2.487 | 0.046 | 0.017 |
| 13 lb | 2.597 | 0.041 | 0.014 |
| 12 lb | 2.593 | 0.041 | 0.014 |
Core: MC2 Asym
Balls like the Theorem Solid
Current balls from any brand with the closest RG, differential, cover and lane condition: an alternative, or a second ball that reacts alike.
