QA1 8Q42 8Q Series Small Body Shock Twin Tube 4in. Stroke 2C/2RQA1 8Q42 8Q Series Small Body Shock Twin Tube 4in. Stroke 2C 2R QA1s rebuildable twin tube shocks offer the performance, consistency and tunability racers demand. Formerly known as 82 series shocks, the 8Q series is an aluminum small body shock available in bearing mount configurations. The threaded body makes it very easy to use in coil over configurations with QA1 kits (sold separately). Racers can choose from 3 9 bodies depending on rules and