- Cover
- MicroTrax Hybrid
- Factory finish
- 4K Fast
- Color
- Yellow / Smoke / Grape
- Core (15 lb)
- Roto Star Tour
- R.G. / Differential / Bias
16 lb 2.520 0.049 0.015 15 lb 2.530 0.053 0.016 14 lb 2.550 0.053 0.016 13 lb 2.570 0.032 0.010 12 lb 2.590 0.029 0.008 - Release date
- August 19, 2022
- Balls with the same cover
- These balls have the same MicroTrax Hybrid cover as the RST X-3:
- Balls with the same core
- These balls have the same 15-lb Roto Star Tour core as the RST X-3:
- From the manufacturer
Formulated for ALL bowlers regardless of their style or their skill level. The latest installment in the RST Series provides WAY more mid-lane motion than the RST X-2, while still providing PLENTY of giddy up down lane. This version of MicroTrax™ Hybrid features nano particles throughout to provide the traction you need in oil, while its two parts pearl provide you the reaction you have come to know and love about the RST Series. So, whether you are a recent PBA Hall of Famer, or this is your very first high-end ball, the RST X-3 will provide unparalleled reaction time and time again.
| Name | Core (15 lb) | Released | |
 | RST X-1 Roto Grip | Roto Star Tour asymmetric | Nov 27, 2020 |
| Name | Cover | Released | |
 | RST X-2 Roto Grip | eTrax PLUS Pearl | Aug 20, 2021 |
| RST X-1 Roto Grip | MicroTrax Hybrid | Nov 27, 2020 |