GTX?S Gyro® Our original dual cable detangler system has been the industry standard since day one. Odyssey has been making the Gyro® since 1986 and constantly improving it along the way. The GTX-S is sold as a bearing unit only. It's the perfect upgrade to our G3 Gyro®. Features Top of the line Gyro® 6061 aluminum Precision sealed mechanism bearing Low 17mm stack height