4% King Shocks 2.5 PR Bypass Piston w/O-Ring Groove (Uses DU Wearband) King Shocks Sale! from 4799 5000 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. King Shocks 2.5 PR Bypass Piston w/O-Ring Groove (Uses DU Wearband)