# Motiv Sigma Tour Pearl

> Bowling ball — data from CarryDown (https://www.carrydown.com/balls/motiv-sigma-tour-pearl/)

- Brand: Motiv
- Availability: current
- Released/approved: 2026-06-09
- Coverstock: [Atomic Propulsion Pearl Reactive](https://www.carrydown.com/brands/motiv/coverstocks/atomic-propulsion/) (pearl)
- Core: [Sigma](https://www.carrydown.com/brands/motiv/cores/sigma/) (symmetric)
- Intended condition: Medium oil
- Factory finish: 5000 Grit LSS
- Flare potential: 4"+
- USBC approved: yes (2026-06-09)
- PBA certified: yes

## Specs by weight

| Weight | RG | Differential | Int. Diff | Mass Bias |
|---|---|---|---|---|
| 16 lb | 2.46 | 0.044 | — | — |
| 15 lb | 2.47 | 0.047 | — | — |
| 14 lb | 2.51 | 0.04 | — | — |
| 13 lb | 2.57 | 0.032 | — | — |
| 12 lb | 2.63 | 0.024 | — | — |

## Description

Fast revving, clean through the fronts, and explosive down lane without becoming uncontrollable.  It fits perfectly between your benchmark piece and your big angular pearl.

## Where to buy

- Amazon (16 lb): https://www.amazon.com/MOTIV-Sigma-Pearl-Bowling-Pounds/dp/B0H34QZQC7?dib=eyJ2IjoiMSJ9.0hqeinJ0bbVBYKyKBu1l47nCv4V-91frOgrIcf5zsll2S5_19NzEnJGig8iiOrT5Sq8_35ZFEkm1xz20dKfdHUERIRunwyZQfbiNDYHmliApshjq5TYt9VqP07k5ZVYufOAAvN5SlX0WN2bE2Spm98hXJ9JttkSRP2HhWvnEIvCcm9NVq7YAo7jiE2F6KmhRpggVh8QfKKHTrcfUROVe_NyQd7mIuzecJPfL8fhdgRhdL5mHSs-aWU9h9qA2kjwKjB33qPwjjLjvWXWZDesl_dvrJj_lOS3kaYQJ9GWsgP0.9n_pMhBz6apxxMSCHWsRC5p5K8r6uRTDn1xrCTIu518&dib_tag=se&keywords=Motiv%2BSigma%2BTour%2BPearl%2Bbowling%2Bball&qid=1781103004&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=fb957dbe9f4eaf60fcda3d2ddab2a17e&language=en_US&ref_=as_li_ss_tl
- Amazon (15 lb): https://www.amazon.com/dp/B0H34N6163?th=1&linkCode=ll2&tag=carrydownapp-20&linkId=9857a3538c0335d67ce9040d9d560375&language=en_US&ref_=as_li_ss_tl
- Amazon (14 lb): https://www.amazon.com/MOTIV-Sigma-Pearl-Bowling-Pounds/dp/B0H34NSS8M?dib=eyJ2IjoiMSJ9.0hqeinJ0bbVBYKyKBu1l47nCv4V-91frOgrIcf5zsll2S5_19NzEnJGig8iiOrT5Sq8_35ZFEkm1xz20dKfdHUERIRunwyZQfbiNDYHmliApshjq5TYt9VqP07k5ZVYufOAAvN5SlX0WN2bE2Spm98hXJ9JttkSRP2HhWvnEIvCcm9NVq7YAo7jiE2F6KmhRpggVh8QfKKHTrcfUROVe_NyQd7mIuzecJPfL8fhdgRhdL5mHSs-aWU9h9qA2kjwKjB33qPwjjLjvWXWZDesl_dvrJj_lOS3kaYQJ9GWsgP0.9n_pMhBz6apxxMSCHWsRC5p5K8r6uRTDn1xrCTIu518&dib_tag=se&keywords=Motiv%2BSigma%2BTour%2BPearl%2Bbowling%2Bball&qid=1781103004&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=c64c900503794594cb194f4b9f662af0&language=en_US&ref_=as_li_ss_tl
- Amazon (13 lb): https://www.amazon.com/MOTIV-Sigma-Pearl-Bowling-Pounds/dp/B0H34SQTLR?dib=eyJ2IjoiMSJ9.0hqeinJ0bbVBYKyKBu1l47nCv4V-91frOgrIcf5zsll2S5_19NzEnJGig8iiOrT5Sq8_35ZFEkm1xz20dKfdHUERIRunwyZQfbiNDYHmliApshjq5TYt9VqP07k5ZVYufOAAvN5SlX0WN2bE2Spm98hXJ9JttkSRP2HhWvnEIvCcm9NVq7YAo7jiE2F6KmhRpggVh8QfKKHTrcfUROVe_NyQd7mIuzecJPfL8fhdgRhdL5mHSs-aWU9h9qA2kjwKjB33qPwjjLjvWXWZDesl_dvrJj_lOS3kaYQJ9GWsgP0.9n_pMhBz6apxxMSCHWsRC5p5K8r6uRTDn1xrCTIu518&dib_tag=se&keywords=Motiv%2BSigma%2BTour%2BPearl%2Bbowling%2Bball&qid=1781103004&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=677da7f314d22a0139d753d213d9af52&language=en_US&ref_=as_li_ss_tl
- Amazon (12 lb): https://www.amazon.com/MOTIV-Sigma-Pearl-Bowling-Pounds/dp/B0H34NPPWJ?dib=eyJ2IjoiMSJ9.0hqeinJ0bbVBYKyKBu1l47nCv4V-91frOgrIcf5zsll2S5_19NzEnJGig8iiOrT5Sq8_35ZFEkm1xz20dKfdHUERIRunwyZQfbiNDYHmliApshjq5TYt9VqP07k5ZVYufOAAvN5SlX0WN2bE2Spm98hXJ9JttkSRP2HhWvnEIvCcm9NVq7YAo7jiE2F6KmhRpggVh8QfKKHTrcfUROVe_NyQd7mIuzecJPfL8fhdgRhdL5mHSs-aWU9h9qA2kjwKjB33qPwjjLjvWXWZDesl_dvrJj_lOS3kaYQJ9GWsgP0.9n_pMhBz6apxxMSCHWsRC5p5K8r6uRTDn1xrCTIu518&dib_tag=se&keywords=Motiv%2BSigma%2BTour%2BPearl%2Bbowling%2Bball&qid=1781103004&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=ce569dc85236427a25aa5faf94022aba&language=en_US&ref_=as_li_ss_tl