Fox Suspension DHX RC4 Shock The Fox DHX RC4 coil is a high performance rear shock at home either on All-mountain, Freeride, Downhill bike. With a Kashima coated main shaft, high & low speed compression, bottom out progressiveness & force adjustment & Boost value technology. The Fox patented Boost Valve technology has a lot going in its tight little package, Boost Valve provides a feeling of endless travel & plushness like that of a downhill rig, but with with XC pedaling efficiency. The smaller piggy back camber helps adjust how progressive the shock feels, with the more air put in, the harder it will be to bottom out. Technologies: Bottom Out Force Adjust
- The Bottom Out Force Adjust controls the air volume in the boost valve. Adjusting all the way in is its lowest volume setting & will make the shock ramp up (get stiffer) late in the travel. Adjusting out, in its high volume setting the shock will ramp up slower through the entire length of the travel creating a more even fe