A fork and shock revalve customises the damping of the bike to suit your ability, riding style and the terrain your riding on. Motocross, Supercross, Enduro and Supermoto all have different damping requirements as do different terrains such as sand, hard pack and rocks.
The aim is to eliminate any harshness through the suspension, giving a more consistent damping action through the stroke resulting in a more balanced feel and good bottoming resistance. The improvement in ride quality will increase grip improve cornering and jumping with better stability and reduced rider fatigue.