Motiv Sigma Tour Pearl Bowling Ball
$289.95 Original price was: $289.95.$207.95Current price is: $207.95.
SKU: MTVBSAPRL
Categories: Ball Add-Ons, Bowling Balls, High Performance Bowling Balls, Motiv, Motiv Bowling Balls, Pre-Orders / New Releases
Tags: .047 Diff, 2.47 RG, Motiv Bowling Balls, tiktok-active
Brand: Motiv
What should I know about the Sigma Tour Pearl?
Symmetric Sigma Core for a readable, repeatable benchmark motion
Atomic Propulsion Pearl Reactive cover at a 5000-grit finish
A tour-caliber mid-arsenal benchmark for medium to medium-heavy oil
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Description
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
| Weight | Radius of Gyration (RG) | Differential |
|---|---|---|
| 16 lbs | 2.46 | .044 |
| 15 lbs | 2.47 | .047 |
| 14 lbs | 2.51 | .040 |
| 13 lbs | 2.57 | .032 |
| 12 lbs | 2.63 | .024 |
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
✓Arsenal Builders: A readable mid-arsenal benchmark, the reference pearl your bag plays off of
Good to Know Before You Buy
·Ships at a clean box finish: The 5000 Grit finish is a smooth, sanded surface that still gets down the lane. Take it lower for an earlier read on heavier oil, or polish it up for more length.
·Colors vary: Actual colors vary somewhat from the photos shown; no two balls come out of the mold exactly alike.
·Tiny pit holes are normal: A few tiny pit holes in the coverstock are a normal part of the manufacturing process.
·Sold undrilled: Ships without finger holes, so it can be fitted to your hand and span.
BowlersMart Tips: Where the Sigma Tour Pearl Fits in Your Motiv Arsenal
Where It Fits in Your Arsenal
In the Motiv lineup, the Sigma Tour Pearl is a readable mid-arsenal benchmark for medium to medium-heavy oil. It clears the fronts cleaner than a solid and reads more smoothly than a sharp pearl, so it slots in as a control-and-length piece, below the strong Jackal and Evoke solids and beside your benchmark equipment.
Surface Adjustments
The 5000-grit finish is a clean, readable benchmark surface. Take it down with a lower-grit pad for an earlier, stronger read on more oil, or polish it up for more length when the lanes dry. Have surface changes done at your pro shop for an even, consistent finish.
Coverstock Care
Wipe the Atomic Propulsion pearl cover with an approved reactive ball cleaner after every session, and deep clean it periodically. Keeping a pearl clean preserves the clean, readable length that defines the Sigma Tour Pearl.
Earn points on every Motiv purchase through the Striking Rewards loyalty program. Every ball you add to your arsenal builds toward your next reward.
Shop With Confidence at BowlersMart
The Motiv Sigma Tour Pearl Bowling Ball ships free with no minimum purchase and is backed by our 60-day return policy. As an authorized Motiv dealer, every ball is genuine and covered by the full one-year Motiv warranty. Place your order before 2 PM EST and it ships the same day.
Additional information
| Weight | 15 lbs |
|---|---|
| Dimensions | 9 × 9 × 9 in |
| Brand | |
| Bowling Ball Core Shape | |
| Bowling Ball Core Name | |
| Bowling Ball Coverstock Type | |
| Bowling Ball Cover Name | |
| Radius of Gyration: RG (15LB) | |
| Differential: Diff (15LB) | |
| Mass Bias Strength | |
| Flare Potential | |
| Surface Finish | |
| Preferred Lane Conditions | |
| Ball Weight | |
| Bowling Ball Color | |
| Ball Performance Level | |
| Scent | |
| Release Date |
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Everyday Free Shipping

Place your order before 2PM EST Monday - Friday (excluding holidays) and your order will ship out same day for in stock and available products. In stock items will ship out the following weekday if purchased after 2PM EST.
In stock Items may take 3-5 business days to arrive depending on your location. (2-10 days in AK, HI, PR, GU, APO, FPO).
We use USPS Priority Mail, Parcel Post, UPS and FedEx as our methods of shipping. Ground Shipping is ALWAYS free in the USA (except Alaska, Hawaii, Puerto Rico, Guam, and APO / FPO addresses), no matter how many items you order, no matter the weight, no matter the distance!
International Shipping - Duties, & Taxes & Return Information
Duties & Taxes - If shipping international, duties and taxes will need to be paid locally. BowlersMart.com is not responsible for any local duties or tax fees.Returns - We gladly ship worldwide, but please note that international customers are responsible for all return shipping and handling costs. If you wish to return your order, you must cover all shipping fees, duties, and any additional charges incurred. We recommend using a trackable shipping method to ensure your return reaches us safely. For more details, please review our full return policy or contact our customer support team.
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WARNING:
This product can expose you to chemicals including Lead, Phthalates, and/or other chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.










