# Roto Grip Gremlin Tour-X

> Bowling ball — data from CarryDown (https://www.carrydown.com/balls/roto-grip-gremlin-tour-x/)

- Brand: Roto Grip
- Availability: current
- Released/approved: 2026-01-20
- Coverstock: VR1 Hybrid (hybrid)
- Core: Rondure TourX (asymmetric)
- Intended condition: Medium oil
- Factory finish: 4000 Grit
- Flare potential: Medium
- USBC approved: yes (2026-01-20)
- PBA certified: yes

## Specs by weight

| Weight | RG | Differential | Int. Diff | Mass Bias |
|---|---|---|---|---|
| 16 lb | 2.48 | 0.032 | 0.01 | — |
| 15 lb | 2.48 | 0.034 | 0.011 | — |
| 14 lb | 2.52 | 0.034 | 0.01 | — |
| 13 lb | 2.57 | 0.032 | 0.01 | — |
| 12 lb | 2.59 | 0.029 | 0.008 | — |

## Description

The legend grows, but the footprint gets more precise. Roto Grip is proud to introduce the Gremlin TOUR-X, a ball designed specifically for those who demand "professional-grade motion" without the unpredictability.When the lanes get tough and the original Gremlin is a bit too "wild," the TOUR-X steps in to provide the control, predictability, and punch you need to stay at the top of the leaderboard.Engineering the "Tour" MotionWe didn't just tweak the original; we re-engineered the DNA of the Gremlin series to favor control and versatility.The Rondure™ TOUR-X Core: By meticulously adjusting the densities of the original Rondure™ MaxD Core, we’ve lowered both the RG and the Differential. This creates a more stable, centered energy displacement that prevents the ball from overreacting at the breakpoint.V-R1™ Hybrid Coverstock: This proven hybrid shell offers the perfect "middle ground" traction. It provides enough teeth to handle oil while maintaining the cleanliness needed to clear the front of the lane.4000-Abralon® Finish: Sanded to a smooth 4000-grit, the TOUR-X offers a matte finish that reads the mid-lane early enough to be predictable, but late enough to retain maximum energy for the pocket.Why the Gremlin TOUR-X?In the modern game, "more hook" isn't always the answer—better hook is. The Gremlin TOUR-X is built for the competitive bowler who needs a ball that blends the wet and the dry. Expect a medium-flare pattern that keeps your transitions smooth and your carry high.The Bottom Line: If you loved the shape of the original Gremlin but want a more disciplined, "Tour-ready" version for league nights or tournament blocks, the Gremlin TOUR-X is your new go-to.

## Where to buy

- Amazon (16 lb): https://www.amazon.com/Roto-Grip-Gremlin-Tour-X-Bowling/dp/B0GKYXV2JK?dib=eyJ2IjoiMSJ9.poM9nRrCbNc0JVCpvgVio10CLftHfunF653NpA-rPnk8vyovEPcGCxZRCOYekT9VXS1ntDObUl_dApt5qBehhUXeOvSNU9iqfvHXWVAbcFuB_El7BJNL0nfPIhMYNtf1m3rktcwyAc9gO6RR1FWKe64a3hj5W2TdRnk-gXxBm5XNdLm9bmCL9yFzMLXRznfUtYBZFVddXJtpG6OdyMUjBD4yajrnMlg-VFmzOw_6az7Yk6nmqG3Ogn9sA8_YkbyTr3IVpZPTpyit8doyqZyWcQq-GZ5GQI7Gp0PvYcyczg4.mbAdJHbFC4IBxuMjFh8dZEsUNzDmQ9yrSo229Wcrgbs&dib_tag=se&keywords=Roto%2BGrip%2BGremlin%2BTour-X%2Bbowling%2Bball&qid=1780874455&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=d1230537dc8a40faefce08b9a2b1e9f6&language=en_US&ref_=as_li_ss_tl
- Amazon (15 lb): https://www.amazon.com/Roto-Grip-Gremlin-Tour-X-Bowling/dp/B0GKYSNFJB?dib=eyJ2IjoiMSJ9.poM9nRrCbNc0JVCpvgVio10CLftHfunF653NpA-rPnk8vyovEPcGCxZRCOYekT9VXS1ntDObUl_dApt5qBehhUXeOvSNU9iqfvHXWVAbcFuB_El7BJNL0nfPIhMYNtf1m3rktcwyAc9gO6RR1FWKe64a3hj5W2TdRnk-gXxBm5XNdLm9bmCL9yFzMLXRznfUtYBZFVddXJtpG6OdyMUjBD4yajrnMlg-VFmzOw_6az7Yk6nmqG3Ogn9sA8_YkbyTr3IVpZPTpyit8doyqZyWcQq-GZ5GQI7Gp0PvYcyczg4.mbAdJHbFC4IBxuMjFh8dZEsUNzDmQ9yrSo229Wcrgbs&dib_tag=se&keywords=Roto%2BGrip%2BGremlin%2BTour-X%2Bbowling%2Bball&qid=1780874455&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=fd0d1099149e5b2ec6735e97d7c270b2&language=en_US&ref_=as_li_ss_tl
- Amazon (14 lb): https://www.amazon.com/Roto-Grip-Gremlin-Tour-X-Bowling/dp/B0GKY69MYF?dib=eyJ2IjoiMSJ9.poM9nRrCbNc0JVCpvgVio10CLftHfunF653NpA-rPnk8vyovEPcGCxZRCOYekT9VXS1ntDObUl_dApt5qBehhUXeOvSNU9iqfvHXWVAbcFuB_El7BJNL0nfPIhMYNtf1m3rktcwyAc9gO6RR1FWKe64a3hj5W2TdRnk-gXxBm5XNdLm9bmCL9yFzMLXRznfUtYBZFVddXJtpG6OdyMUjBD4yajrnMlg-VFmzOw_6az7Yk6nmqG3Ogn9sA8_YkbyTr3IVpZPTpyit8doyqZyWcQq-GZ5GQI7Gp0PvYcyczg4.mbAdJHbFC4IBxuMjFh8dZEsUNzDmQ9yrSo229Wcrgbs&dib_tag=se&keywords=Roto%2BGrip%2BGremlin%2BTour-X%2Bbowling%2Bball&qid=1780874455&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=20d0a0b19a561bdcc12e9db1e70d4dae&language=en_US&ref_=as_li_ss_tl
- Amazon (13 lb): https://www.amazon.com/Roto-Grip-Gremlin-Tour-X-Bowling/dp/B0GKYXDK9D?dib=eyJ2IjoiMSJ9.poM9nRrCbNc0JVCpvgVio10CLftHfunF653NpA-rPnk8vyovEPcGCxZRCOYekT9VXS1ntDObUl_dApt5qBehhUXeOvSNU9iqfvHXWVAbcFuB_El7BJNL0nfPIhMYNtf1m3rktcwyAc9gO6RR1FWKe64a3hj5W2TdRnk-gXxBm5XNdLm9bmCL9yFzMLXRznfUtYBZFVddXJtpG6OdyMUjBD4yajrnMlg-VFmzOw_6az7Yk6nmqG3Ogn9sA8_YkbyTr3IVpZPTpyit8doyqZyWcQq-GZ5GQI7Gp0PvYcyczg4.mbAdJHbFC4IBxuMjFh8dZEsUNzDmQ9yrSo229Wcrgbs&dib_tag=se&keywords=Roto%2BGrip%2BGremlin%2BTour-X%2Bbowling%2Bball&qid=1780874455&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=6c31cc70a22061b31a5c9e535a954493&language=en_US&ref_=as_li_ss_tl
- Amazon (12 lb): https://www.amazon.com/Roto-Grip-Gremlin-Tour-X-Bowling/dp/B0GKYCKC5P?dib=eyJ2IjoiMSJ9.poM9nRrCbNc0JVCpvgVio10CLftHfunF653NpA-rPnk8vyovEPcGCxZRCOYekT9VXS1ntDObUl_dApt5qBehhUXeOvSNU9iqfvHXWVAbcFuB_El7BJNL0nfPIhMYNtf1m3rktcwyAc9gO6RR1FWKe64a3hj5W2TdRnk-gXxBm5XNdLm9bmCL9yFzMLXRznfUtYBZFVddXJtpG6OdyMUjBD4yajrnMlg-VFmzOw_6az7Yk6nmqG3Ogn9sA8_YkbyTr3IVpZPTpyit8doyqZyWcQq-GZ5GQI7Gp0PvYcyczg4.mbAdJHbFC4IBxuMjFh8dZEsUNzDmQ9yrSo229Wcrgbs&dib_tag=se&keywords=Roto%2BGrip%2BGremlin%2BTour-X%2Bbowling%2Bball&qid=1780874455&sr=8-1&th=1&linkCode=ll2&tag=carrydownapp-20&linkId=aa4bd3fb0110e473390fd731159ae363&language=en_US&ref_=as_li_ss_tl