Qa1 shocks are one of the most adjustable, revalvable, and repairable shock on the market today. The QA1 shock comes out of the box with a good linear deflective disc piston and an adjustable and versatile base valve. We can build the QA1's for a variety of track conditions such as rough track, slick track, tacky track etc. We have improved the off the shelf QA1 straight valve shocks. We have also completely redesigned the split vavle shocks to improve fluid flow and low speed control to build a superior shock. All of these great features can be included on stock mount twin tube shocks, steel twin tube rod end shocks and aluminum twin tube rod end shocks. We have aftermarket pistons available in a variety of combinations such as digressive, linear digressive, double digressive, and high frequency just to name a few.