# Motiv Sigma Tour Pearl Bowling Ball

Sold by BowlersMart (www.bowlersmart.com). $204.95 USD. In stock: 16LB, 15LB, 14LB, 13LB, 12LB. Checked 2026-10-18 23:39 UTC.
Buy: https://www.bowlersmart.com/product/motiv-sigma-tour-pearl-bowling-ball/

## Facts
- Brand: Motiv
- Category: Ball Add-Ons > Bowling Balls > Heavy Oil Bowling Balls > High Performance Bowling Balls
- Brand: Motiv
- Bowling Ball Core Shape: Symmetrical Core
- Bowling Ball Core Name: Motiv Sigma Core
- Bowling Ball Coverstock Type: Pearl Reactive
- Bowling Ball Cover Name: Motiv Atomic Propulsion Pearl Reactive
- Radius of Gyration: RG (15LB): 2.47
- Differential: Diff (15LB): .047
- Flare Potential: 4 - 5 Inches
- Surface Finish: 5000 Grit
- Preferred Lane Conditions: Medium - Heavy Oil
- Bowling Ball Color: Purple, Red
- Ball Performance Level: High Performance Bowling Balls
- Scent: None
- Release Date: July 2026
- SKU: MTVBSAPRL
- Merchant record last changed: 2026-10-18 23:05 UTC

## Variants
| Variant | SKU | Price | Availability |
|---|---|---|---|
| 16LB | MTVBSAPRL-16 | $204.95 USD | In stock |
| 15LB | MTVBSAPRL-15 | $204.95 USD | In stock |
| 14LB | MTVBSAPRL-14 | $204.95 USD | In stock |
| 13LB | MTVBSAPRL-13 | $204.95 USD | In stock |
| 12LB | MTVBSAPRL-12 | $204.95 USD | In stock |

## Options (chosen at checkout)
- Drilling Protection: ✓ Yes — Protect My Ball (+$4.95 USD), No thanks
- Extra 365 Protection: ✓ Yes — Extend My Coverage (+$5.95 USD), No thanks
- Specific Requests: free text

## Description (merchant text, shortened)
A Tour-Caliber Benchmark Pearl

About the Sigma Tour Pearl

The Motiv Sigma Tour Pearl is a tour-caliber, mid-arsenal benchmark built for medium to medium-heavy oil. It pairs the symmetric Sigma Core with a clean pearl cover for a smooth, readable, controllable motion, the kind of dependable shape that earns a permanent spot in a serious bag. Like all of Motiv's high-performance equipment, it is made in the U.S.A.

The Sigma Tour Pearl pairs that Sigma Core with Motiv's Atomic Propulsion Pearl Reactive coverstock at a 5000-grit finish. The symmetric core reads the lane evenly and predictably, while the pearl cover clears the fronts cleanly and makes a controllable move at the breakpoint, a readable benchmark with the length a pearl provides.

Understanding the Motiv Sigma Core and Motiv Atomic Propulsion Pearl Reactive

Motiv built the Sigma Tour Pearl to be a readable, mid-arsenal benchmark. Specifically, the symmetric Sigma Core reads the lane smoothly and predictably, while the Atomic Propulsion pearl cover at a 5000-grit finish clears the fronts and continues to the pocket. As a result, it delivers a controllable, repeatable shape that tells you what the lane is doing on medium to medium-heavy oil. The full per-weight specifications are listed below.

A Readable Symmetric Core for a Mid-Arsenal Benchmark

At the heart of the Sigma Tour Pearl is the symmetric Sigma Core. At 15 lb it measures RG 2.47 and a .047 differential, numbers that produce a controllable motion with medium flare. The core reads the lane evenly and repeats the same shape shot after shot, exactly what a benchmark piece needs.

That readable, repeatable shape is what makes the Sigma a true mid-arsenal benchmark. As a symmetric core, it does not overreact or surprise you, it tells you what the lane is doing so you can make a confident move with the rest of your bag.

A Clean Pearl Cover for Readable Length

The Sigma Tour Pearl wraps that core in Motiv's Atomic Propulsion Pearl Reactive coverstock at a 5000-grit finish. The pearl additive conserves energy through the front of the lane, so the ball clears the heads cleanly and saves its motion for a controllable move at the breakpoint.

That clean, readable length is what makes the Sigma Tour Pearl such a dependable benchmark. It gets down medium to medium-heavy oil and finishes with a smooth, controllable backend. Leave it at the 5000-grit box finish for the classic benchmark read, or adjust the surface at your pro shop to lean it earlier or longer.

Sigma Tour Pearl Specs

RG and differential vary by weight. Specifications provided by the manufacturer.

Who This Ball Is Right For

✓Tournament Players: A readable, tour-caliber benchmark pearl that tells you what the lane is doing on medium to medium-heavy oil

✓League Bowlers: A smooth, controllable one-ball with the clean length of a pearl, easy to line up and trust

✓Strokers and Tweeners: The symmetric Sigma core rewards control players with a forgiving, repeatable read
Full text at the buy link above.

## Shipping, returns, payment (BowlersMart)
- Shipping: Free ground shipping on US orders, no minimum, 48 contiguous states and military APO/FPO. To Alaska, Hawaii, Puerto Rico and Guam bowling balls ship for $24.95 per ball, most other items free; oversized roller bags cost extra there. International orders pay the rate shown at checkout, duties paid locally.
- Processing and delivery: In-stock items ordered by 2PM EST Monday to Friday ship the same day, later orders the next business day. Carriers USPS, UPS, FedEx. Standard delivery 3 to 7 business days; expedited options at checkout.
- Returns: 60 days from delivery for US customers on new, unused items in original packaging, free prepaid return labels. Drilled bowling balls cannot be returned or exchanged. Shoes must have been tried on a clean, dry surface. Manufacturing defects and shipping damage go through the defect claim process.
- Payment: Credit and debit cards, PayPal, Apple Pay, Google Pay, Venmo, Amazon Pay, and buy now pay later through Affirm, Afterpay and Klarna.
- Pro shops: Pro shops inside bowling centers in 10 US states fit, drill and service equipment; a ball bought online can be drilled there.
- Identity: www.bowlersmart.com is the only website of BowlersMart. Lookalike domains are fraudulent.

## Images
- MTVBSAPRL Sigma Tour Pearl Front 1080: https://www.bowlersmart.com/wp-content/uploads/2026/06/MTVBSAPRL-Sigma-Tour-Pearl-Front-1080.png
- MTVBSAPRL Sigma Tour Pearl Core 1080: https://www.bowlersmart.com/wp-content/uploads/2026/06/MTVBSAPRL-Sigma-Tour-Pearl-Core-1080.png

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