QA1 MOD Series Coil-Over Shock Absorber - Piggyback - Left Hand - Bearing Mount - 12.5in/18.75insoft or firm compression and rebound valve packs also available. Once the desired valving is in place, the unique double adjustable design, with adjustable low speed bleed, allows for fully independent control over the compression and rebound characteristics. With all these adjustability options, the MOD Series shock achieves an expansive force curve capability and an unprecedented level of tunability. The shock also features mounting adjustability to